A strong six-channel car amplifier delivers enough RMS power for your speakers, suitable crossover controls, and the right inputs for your head unit. The CT Sounds CT-150.6D is the clearest all-around match here, with 150 watts RMS per channel at 4 ohms and a bridged option for channels five and six. Other models fit more specific needs: the AudioControl D-6.1200 combines amplification with a configurable DSP, while the Sundown Audio SDX-100.6 and KICKER 48KMA6006 add weather-oriented features for open-air installations.
This roundup compares the supplied power figures, input and tuning features, and stated dimensions where available. Match an amp to your speakers’ impedance and power handling, and check the installation space before choosing; headline peak wattage alone does not establish system compatibility.
The CT Sounds CT-150.6D is the best overall pick in this group because it lists 150 watts RMS per channel at 4 ohms, 230 watts per channel at 2 ohms, and 520 watts RMS when channels five and six are bridged at 4 ohms. That flexibility suits a full six-speaker setup or a system that needs a bridged pair. Choose the AudioControl D-6.1200 instead if integrated DSP control and multiple system configurations matter more than the CT Sounds model’s listed output figures.
Our Top Picks
Best OverallIt lists 150 watts RMS per channel at 4 ohms, 230 watts at 2 ohms, and 520 watts bridged across channels five and six.
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Best Integrated DSPThe DSP amp lists 125 watts RMS per channel and configurable six-, five-, four-, or three-channel operation with speaker-level and RCA inputs.
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Best Compact Power OptionIt provides 100 watts RMS x6 at 4 ohms or 150 watts x6 at 2 ohms in an 11 x 6.3 x 1.9-inch chassis.
View on AmazonCompare the six-channel amplifier options
| # | Product | dimensions | Weight | Warranty Description | Buy |
|---|---|---|---|---|---|
| 1 | 1. CT Sounds CT-150.6DBest Overall | 12.8 x 5.63 x 2.19 in | — | 1 Year Manufacturer | View on Amazon |
| 2 |  2. DS18 G3600.6DBridged outputs and adjustable bass | — | — | 1 year manufacturer | View on Amazon |
| 3 | 3. AudioControl D-6.1200Best Integrated DSP | 12 x 8 x 2.1 in | 7.2 lb | 1 Year Manufacturer | View on Amazon |
| 4 | 4. Cerwin-Vega H900.6DBest Compact Power Option | 11 x 6.3 x 1.9 in | 5.6 lb | — | View on Amazon |
| 5 |  5. Audison SR 6.600OEM input and subwoofer configuration | — | 6.64 lb | — | View on Amazon |
| 6 |  6. AudioControl EPICSIXCompact aftermarket-radio system builder | — | — | 1 Year Manufacturer | View on Amazon |
| 7 |  7. Sundown Audio SDX-100.6Weatherproof open-air vehicle audio | — | 6.89 lb | — | View on Amazon |
| 8 |  8. Sundown Audio SALT-2000.6High-output multi-channel system builder | 22 x 6 x 12 in | 17 lb | — | View on Amazon |
| 9 |  9. KICKER 48KMA6006Marine and moisture-exposed audio | 18.3 x 9 x 4.3 in | — | 1-Year Manufacturer Warranty | View on Amazon |
| 10 |  10. Memphis VIV750.6V2Hands-on crossover and lighting setup | 11.3 x 4.6 x 14.6 in | 7 lb | 30-Day Warranty | View on Amazon |
Detailed Reviews: Best 6 Channel Amplifier For Car
#1 · Best Overall
1. CT Sounds CT-150.6D
- dimensions: 12.8 x 5.63 x 2.19 in
- Warranty Description: 1 Year Manufacturer
Best for: Six-speaker and bridged-channel installer.
Why it ranks #1: It lists 150 watts RMS per channel at 4 ohms, 230 watts at 2 ohms, and 520 watts bridged across channels five and six.
The CT-150.6D supplies 230 watts RMS per channel at 2 ohms across six channels, enabling a multi-speaker system from one full-range Class D amplifier. Its fifth and sixth channels can also bridge to 520 watts RMS at 4 ohms, offering a different output arrangement for a compatible load.
The six dedicated channels can run a front component set and rear coaxial set, with each speaker on its own channel, according to the supplied description. When the system calls for a different layout, bridging channels five and six provides 520 watts RMS at 4 ohms. The MOSFET pulse-width-modulated power supply supports this amplifier design, while four-way protection covers high and low voltage, overcurrent, and high temperature. Its listed dimensions are 12.8 by 5.63 by 2.19 inches.
- 230W RMS x 6 at 2 ohms
- 150W RMS x 6 at 4 ohms
- Channels 5–6 bridge to 520W RMS at 4 ohms
- Four-way voltage, current, and temperature protection
- Bridged output is specified only for channels 5–6, limiting the listed bridging option to one pair.
Skip it if you need DSP or flexible factory-signal integration; the AudioControl D-6.1200 lists speaker-level inputs, RTAs, and matrix DSP.
Choose this CT Sounds model if you want six individually driven speakers with the option to bridge one channel pair for a compatible 4-ohm load. Its listed bridge arrangement and supply specifications should suit your system plan.
Full product details
| Brand | CT Sounds |
|---|---|
| Included Components | Car Amplifer, Mounting Screws, Decal Sticker |
| Item Dimensions | 12.8 x 5.63 x 2.19 inches |
| Dimensions | 12.8 x 5.63 x 2.19 inches |
| Manufacturer | CT Sounds |
| Maximum Supply Voltage | 14.4 volts_of_direct_current |
| Minimum Supply Voltage | 14.4 volts_of_direct_current |
| Model | CT-150-6D |
| Warranty Description | 1 Year Manufacturer |
Listed on Amazon as: CT Sounds CT-150.6D 1500W RMS Full-Range Class D 6-Channel Car Amplifier
View on Amazon#2
2. DS18 G3600.6D
- Warranty Description: 1 year manufacturer
Best for: Bridged outputs and adjustable bass.
Why it ranks #2: Its stated 200 watts RMS x6 at 4 ohms and 500 watts x3 bridged offer substantial output, with adjustable crossovers and bass boost.
The DS18 G3600.6D delivers 500 watts by three bridged channels at 4 ohms, enabling a six-channel amp to support a layout that uses paired channels for larger loads. It also offers 200 watts RMS per channel at 4 ohms, plus variable crossover modes and bass boost for sound shaping.
Choose six-channel operation at 200 watts RMS per channel at 4 ohms or 250 watts at 2 ohms, or bridge to three channels rated at 500 watts each at 4 ohms. Variable high-pass, band-pass, and full-range crossovers provide options for dividing or passing signal, while bass boost adjusts up to 12 dB at 45 Hz. These features support different speaker arrangements and low-frequency preferences without relying on a single fixed crossover mode.
- 200W RMS x 6 at 4 ohms
- 250W RMS x 6 at 2 ohms
- Bridged output rated 500W x 3 at 4 ohms
- Variable crossover modes and up to 12 dB bass boost at 45 Hz
- The supplied details give no chassis dimensions for checking installation space.
Skip it if you need a specified compact footprint before planning a tight install; the Cerwin-Vega H900.6D lists its chassis dimensions.
The G3600.6D suits buyers who want strong per-channel output, three-channel bridging, and adjustable crossover and bass controls. Check that its installation space can be planned without listed chassis dimensions.
Full product details
| Brand | DS18 |
|---|---|
| Manufacturer | DS18 |
| Model Number | G3600.6D |
| Warranty Description | 1 year manufacturer |
#3 · Best Integrated DSP
3. AudioControl D-6.1200
- dimensions: 12 x 8 x 2.1 in
- Weight: 7.2 lb
- Warranty Description: 1 Year Manufacturer
Best for: DSP tuning and factory integration.
Why it ranks #3: The DSP amp lists 125 watts RMS per channel and configurable six-, five-, four-, or three-channel operation with speaker-level and RCA inputs.
Matrix DSP and configuration as a six-, five-, four-, or three-channel amplifier give the AudioControl D-6.1200 unusual system-layout flexibility. Eight speaker-level inputs and six balanced RCA inputs let it connect with factory or aftermarket signal sources, helping integrate and tune more involved car audio builds.
For factory-stereo integration, eight speaker-level inputs and input/output RTAs for each pair help identify and sum factory speaker signals. Six balanced RCA analog inputs also support aftermarket preamp connections, while two assignable preamp outputs provide signal-routing options. Matrix DSP adds processing control, and the amplifier can be configured for six, five, four, or three channels as a system changes. At 125 watts RMS per channel, it pairs substantial stated output with those integration and tuning tools.
- Configurable for six, five, four, or three channels
- Eight speaker-level and six balanced RCA inputs
- Input/output RTAs help identify and sum factory signals
- Matrix DSP and two assignable preamp outputs
- At 12 by 8 by 2.1 inches and 7.2 pounds, it requires planning for a sizable installation location.
Skip it if you only need a compact six-channel amp with basic crossovers; the Cerwin-Vega H900.6D measures 11 x 6.3 x 1.9 inches.
This AudioControl fits installers integrating a factory signal or building a system that benefits from DSP and flexible channel configuration. Allow room for its 12-by-8-inch footprint and plan time for signal routing and tuning.
Full product details
| Brand | AudioControl |
|---|---|
| Included Components | 6-Channel Matrix DSP Amplifier, Speaker Connectors, Fuses, User Manual |
| Item Dimensions | 12 x 8 x 2.1 inches |
| Item Weight | 7.2 pounds |
| Dimensions | 12 x 8 x 2.1 inches |
| Manufacturer | AudioControl |
| Material | Aluminum |
| Minimum Supply Voltage | 12 volts |
| Model | D-6.1200 |
| Voltage | 16 volts |
| Warranty Description | 1 Year Manufacturer |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (DEHP) which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov |
Listed on Amazon as: AudioControl D-6.1200 DSP Car Audio Amplifier, 1200W, 6-Channel
View on Amazon#4 · Best Compact Power Option
4. Cerwin-Vega H900.6D
- dimensions: 11 x 6.3 x 1.9 in
- Weight: 5.6 lb
Best for: Compact adjustable six-speaker setup.
Why it ranks #4: It provides 100 watts RMS x6 at 4 ohms or 150 watts x6 at 2 ohms in an 11 x 6.3 x 1.9-inch chassis.
The Cerwin-Vega H900.6D combines six-channel power with a chassis measuring 11 by 6.3 by 1.9 inches, helping fit a full-range amplifier into a compact installation. It delivers 100 watts RMS per channel at 4 ohms or 150 watts at 2 ohms, and channel pairs can bridge for alternate system layouts.
Run six speakers from the dedicated channels, or bridge channel pairs to produce 300 watts RMS by three channels at 4 ohms for compatible component speakers or subwoofers. Adjustable high- and low-pass crossovers span 50 to 500 Hz, with selectable 12 or 24 dB-per-octave slopes to shape output for different speaker roles. REM, VOX, and DC turn-on modes offer several installation approaches, while LED power and protection indicators help monitor operating status.
- 100W RMS x 6 at 4 ohms
- 150W RMS x 6 at 2 ohms
- Pairs bridge to 300W x 3 at 4 ohms
- 50–500 Hz crossover with 12/24 dB-per-octave slopes
- Its listed crossover range ends at 500 Hz, below models specifying wider filter ranges.
Skip it if you need crossover adjustment up to 5000 Hz; the Audison SR 6.600 specifies that range on outputs five and six.
Pick the H900.6D for a compact, configurable six-channel installation that benefits from pair bridging and several turn-on options. Its listed crossover range is a boundary to consider for systems needing higher filter settings.
Full product details
| Brand | Cerwin Vega Mobile CV |
|---|---|
| Included Components | Amplifier, Screws and Manual |
| Item Dimensions | 11 x 6.3 x 1.9 inches |
| Item Weight | 5.6 pounds |
| Dimensions | 11 x 6.3 x 1.9 inches |
| Manufacturer | Cerwin Vega |
| Maximum Supply Voltage | 14.4 volts_of_direct_current |
| Minimum Supply Voltage | 12 volts_of_direct_current |
| Model | H900.6D |
| Voltage | 12 volts |
Listed on Amazon as: Cerwin-Vega 6-Channel Class D Car Amplifier 900W RMS Full Range H900.6D
View on Amazon#5
5. Audison SR 6.600
- Weight: 6.64 lb
Best for: OEM input and subwoofer configuration.
Why it ranks #5: Its selectable channel configurations and high-pass and low-pass filters support several system layouts, including a front two-way setup with a subwoofer.
Balanced, high-noise-rejection speaker and RCA inputs let the Audison SR 6.600 connect with either OEM head units or aftermarket head units. Its adjustable filters on outputs five and six support several layouts, including a front two-way system with a powerful 2-ohm subwoofer, giving system builders useful routing choices.
With Speaker-In for OEM sources and RCA-In for aftermarket head units, the SR 6.600 can fit different signal-chain starting points. Its optional VCR-S2/ARC 01 remote volume control adjusts output level from the dashboard. The 12 dB adjustable low- and high-pass filters on outputs five and six cover 50 Hz to 5000 Hz, supporting a three-way system, front two-way plus rear speakers, or front two-way plus a 2-ohm subwoofer. That flexibility helps tailor channel use to the chosen system.
- Balanced Speaker-In and RCA-In connections
- Optional dashboard remote volume control
- Outputs 5/6 have adjustable 50–5000 Hz filters
- Listed configurations include a 2-ohm subwoofer layout
- The dashboard volume control is optional, not listed as included.
Skip it if you want built-in DSP and specified factory-signal RTAs; the AudioControl D-6.1200 lists both integration and tuning tools.
The Audison suits buyers who need both OEM and aftermarket input paths and want to configure the final channel pair around their system. Factor the optional remote into plans if dashboard volume control matters.
Full product details
| Brand | Audison |
|---|---|
| Item Weight | 6.64 pounds |
| Item model number | SR6.600 |
| Dimensions | 14 x 8 x 18 inches |
| Warranty | 1-Year Manufacturer Warranty |
Listed on Amazon as: Audison SR 6.600 D-Class 6 Ch Amplifier 150 Wrms X 4/190 Wrms X 2 At 2-Ohms
View on Amazon#6
6. AudioControl EPICSIX
- Warranty Description: 1 Year Manufacturer
Best for: Compact aftermarket-radio system builder.
Why it ranks #6: This compact Class D full-range amplifier is rated at 1200 watts RMS overall and includes high- and low-pass crossovers plus RCA line-level inputs.
A 1200-watt RMS, six-channel Class D design gives the AudioControl EPICSIX substantial full-range power in a compact amplifier. Its high- and low-pass crossovers let you shape output for different speakers, while RCA line-level inputs provide a connection path for aftermarket radios.
For a system centered on an aftermarket head unit, the RCA line-level inputs provide a direct signal connection, and the six channels can power a multi-speaker setup. High- and low-pass crossover controls help tailor the signal for speaker roles, rather than sending every driver the same range. The compact, high-power format can suit installs where space is limited; the included wrench, screws, and manual support mounting and setup. Smart protection is also listed as a feature.
- 1200W RMS full-range output
- Six-channel Class D amplifier
- High- and low-pass crossover controls
- RCA line-level inputs and smart protection
- The supplied details do not specify per-channel RMS output or crossover adjustment ranges.
Skip it if you need listed per-channel power figures or DSP tuning; the AudioControl D-6.1200 specifies 125 watts RMS per channel and matrix DSP.
The EPICSIX suits buyers building a compact aftermarket-radio system that needs six channels, crossover shaping, and substantial stated RMS power. Check that its input options and unspecified per-channel output detail meet the requirements of your particular installation.
Full product details
| Brand | AudioControl |
|---|---|
| Included Components | EPICSIX Amplifier, Wrench, Screws, User Manual |
| Manufacturer | AudioControl |
| Maximum Supply Voltage | 12 volts |
| Model | EPICSIX |
| Voltage | 12 volts |
| Warranty Description | 1 Year Manufacturer |
#7
7. Sundown Audio SDX-100.6
- Weight: 6.89 lb
Best for: Weatherproof open-air vehicle audio.
Why it ranks #7: It is described as weatherproof for car and open-air vehicle use, with 100 watts x6 at 4 ohms and 150 watts x6 at 2 ohms.
A water-resistant, weatherproof open-air design makes the Sundown Audio SDX-100.6 a fit for car, UTV, powersports, and other open-air audio systems. Six channels provide 100 watts RMS each at 4 ohms or 150 watts at 2 ohms, with bridging available for a three-channel arrangement.
For a six-speaker setup, the amplifier supplies 100 watts RMS per channel at 4 ohms or 150 watts at 2 ohms. Bridging offers three channels at 300 watts each at 4 ohms, giving another option for compatible system layouts. Variable 12 dB high- and low-pass filters and x1/x20 crossover multipliers support audio tuning across channel ranges. Its water-resistant construction addresses changing conditions in open-air vehicles, where a standard cabin-oriented install may not be the intended setting.
- Weatherproof, water-resistant open-air design
- 100W RMS x 6 at 4 ohms
- 150W RMS x 6 at 2 ohms
- Bridges to 300W x 3 at 4 ohms
- Its dimensions are 8.5 x 14.8 x 4.5 inches, requiring room for a relatively wide mounting footprint.
Skip it if you need a smaller stated chassis; the Cerwin-Vega H900.6D measures 11 x 6.3 x 1.9 inches.
Choose the SDX-100.6 for a weather-exposed car, UTV, or powersports system needing six channels and bridging flexibility. Its water-resistant design and wide 14.8-inch listed dimension are key fit considerations.
Full product details
| Brand | Sundown Audio |
|---|---|
| Item Weight | 6.89 pounds |
| Item model number | A-SDX1006 |
| Dimensions | 8.5 x 14.8 x 4.5 inches |
| Warranty | 1 Year Manufacturer |
Listed on Amazon as: Sundown Audio SDX-100.6 6-Channel Class D Amplifier, 150W x 6 RMS, Weatherproof
View on Amazon#8
8. Sundown Audio SALT-2000.6
- dimensions: 22 x 6 x 12 in
- Weight: 17 lb
Best for: High-output multi-channel system builder.
Why it ranks #8: Listed channel outputs include 200, 250, and 350 watts across channel pairs, but the supplied details provide fewer installation and feature specifics.
The Sundown Audio SALT-2000.6 lists differentiated output across its six channels: 200, 250, and 350 watts by two-channel pairs. That arrangement gives a builder channel groups with distinct stated power levels for a multi-way system, rather than requiring every pair to share one listed output figure.
The supplied output figures identify 200 watts for one channel pair, 250 watts for another, and 350 watts for the final pair, offering differentiated power across a six-channel layout. A second listed set gives 100, 150, and 200 watts by pairs, also preserving that stepped arrangement. The amplifier accepts a stated supply range from 9 to 15.5 volts, providing a defined operating window for installation planning. Dimensions are listed as 22 by 6 by 12 inches, with a 17-pound weight.
- Six-channel Class D full-range amplifier
- Listed output pairs: 200W, 250W, and 350W
- A second listed pair set gives 100W, 150W, and 200W
- 9–15.5V stated supply range
- The supplied details do not identify the load or conditions for the listed pair outputs.
Skip it if you need published per-channel ratings at defined impedances; the Cerwin-Vega H900.6D lists output at 2 and 4 ohms.
The SALT-2000.6 is for builders considering a high-output, multi-channel layout with different listed power levels by channel pair. Its substantial 22-by-6-by-12-inch dimensions and unspecified output conditions warrant careful installation planning.
Full product details
| Brand | Sundown Audio |
|---|---|
| Item Dimensions | 22 x 6 x 12 inches |
| Item Weight | 17 pounds |
| Dimensions | 22 x 6 x 12 inches |
| Manufacturer | Sundown Audio |
| Maximum Supply Voltage | 15.5 volts_of_direct_current |
| Minimum Supply Voltage | 9 volts_of_direct_current |
| Model | SALT-2000.6 |
Listed on Amazon as: Sundown Audio Multi-Channel Full Range Class-D Amplifier (SALT-2000.6)
View on Amazon#9
9. KICKER 48KMA6006
- dimensions: 18.3 x 9 x 4.3 in
- Warranty Description: 1-Year Manufacturer Warranty
Best for: Marine and moisture-exposed audio.
Why it ranks #9: Its 6×100-watt title and variable crossovers suit a six-speaker installation, while conformal-coated boards and stainless hardware target marine use.
Conformal-coated circuit boards and 316L stainless-steel, no-rust hardware make the KICKER KMA600.6 a weather-resistant choice for marine audio. Its six-channel, 6-by-100-watt rating and built-in variable crossovers support powering and matching multiple speakers, while its small-footprint description favors tucked-away installation.
The moisture-repelling conformal coating and stainless-steel hardware address conditions relevant to boat installations, where exposed components face damp environments. The supplied marine details also identify marine-grade speaker terminals and ABYC/NMMA-compliant power connections. Six channels rated at 100 watts each provide a multi-speaker layout, while variable crossovers help match the signal to speaker performance. KICKER describes the amplifier as having a small footprint for tucking out of the way, though the listed dimensions are 18.3 by 9 by 4.3 inches.
- Conformal-coated circuit boards repel moisture
- 316L stainless-steel, no-rust hardware
- Six-channel 6x100W rating
- Built-in variable crossovers and marine-grade connections
- The listed dimensions are 18.3 x 9 x 4.3 inches, so measure the intended mounting area.
Skip it if you need a compact 11-inch-long chassis; the Cerwin-Vega H900.6D lists dimensions of 11 x 6.3 x 1.9 inches.
The KMA600.6 suits boat owners seeking six-channel power with moisture-conscious construction and marine connection details. Its listed dimensions make checking the mounting area particularly important before planning an installation.
Full product details
| Brand | KICKER |
|---|---|
| Included Components | 48KMA6006 |
| Item Dimensions | 18.3 x 9 x 4.3 inches |
| Dimensions | 18.3 x 9 x 4.3 inches |
| Manufacturer | Kicker |
| Maximum Supply Voltage | 14.4 volts |
| Model | 48KMA6006 |
| Warranty Description | 1-Year Manufacturer Warranty |
Listed on Amazon as: Kicker 48KMA6006 KMA600.6 6x100w 6-Ch Weather-Resistant Full-Range Amplifier
View on Amazon#10
10. Memphis VIV750.6V2
- dimensions: 11.3 x 4.6 x 14.6 in
- Weight: 7 lb
- Warranty Description: 30-Day Warranty
Best for: Hands-on crossover and lighting setup.
Why it ranks #10: The used, acceptable-condition listing has a 30-day warranty and lists 70 watts RMS x6, making its stated condition and shorter coverage notable drawbacks.
A magnetic top panel gives access to the Memphis VIV750.6V2’s amplifier adjustments without special tools, making hands-on tuning more direct. Its six-channel Class D design is rated at 70 watts RMS per channel, while high- and low-pass crossovers and bass boost offer several signal-shaping controls.
The top-mounted magnetic cover lifts to expose amplifier adjustments, so routine tuning does not require special tools. High- and low-pass crossover frequency ranges are listed from 10 to 5000 Hz, with a 24 dB-per-octave low-pass slope and bass boost from 0 to 18. RGB LED lighting on the top strip and side panels adds a visible installation detail, with the top-mounted control used to select a color. The listed condition is used, acceptable, and the warranty is 30 days.
- 70W RMS x 6-channel rating
- High- and low-pass crossover ranges listed at 10–5000 Hz
- Bass boost range of 0–18
- Magnetic access panel and selectable RGB lighting
- This listing is used, acceptable condition and includes only a 30-day warranty.
Skip it if you require a new amplifier with a one-year manufacturer warranty; the Sundown Audio SDX-100.6 lists that warranty.
This Memphis listing fits buyers prioritizing accessible adjustments, broad listed crossover ranges, and RGB installation lighting. Its used, acceptable condition and 30-day warranty are important limits for anyone weighing the purchase.
Full product details
| Brand | Memphis |
|---|---|
| Included Components | VIV750.6V2-UA-K |
| Item Dimensions | 11.3 x 4.6 x 14.6 inches |
| Item Weight | 7 pounds |
| Dimensions | 11.3 x 4.6 x 14.6 inches |
| Manufacturer | Memphis Audio |
| Material | Plastic |
| Maximum Supply Voltage | 12 volts_of_direct_current |
| Minimum Supply Voltage | 12 volts |
| Model | VIV750.6V2-UA-K |
| Voltage | 14.4 volts |
| Warranty Description | 30-Day Warranty |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Memphis VIV750.6V2 VIV SixFive Series car Amplifier — 70 watts RMS x 6 – Used, Acceptable
View on AmazonAvoid matching peak watts instead of RMS
A peak-watt figure can mislead when you are checking whether an amplifier suits your speakers; compare RMS output at the speakers’ actual impedance instead. The DS18 G3600.6D title highlights 3600 watts peak, but its more useful listed continuous figures are 200 watts RMS x6 at 4 ohms and 250 watts RMS x6 at 2 ohms. The CT Sounds CT-150.6D likewise provides separate RMS figures for 2-ohm and 4-ohm loads.
Confirm that the speaker impedance is supported and that the amplifier’s per-channel RMS output is appropriate for the speakers, rather than treating total or peak wattage as a direct match. Bridged output is a separate operating arrangement: both CT Sounds and Cerwin-Vega list higher bridged figures, but those figures apply to paired channels and a specified impedance.
Do not assume every channel can deliver its bridged rating at once.
Check fit, signal path, and installation conditions
A six-channel label does not guarantee that an amplifier will fit your mounting location or accept your factory stereo’s signal the way you need. Listed dimensions vary: the Cerwin-Vega H900.6D is 11 x 6.3 x 1.9 inches, while the AudioControl D-6.1200 is 12 x 8 x 2.1 inches; check the actual mounting area and installation clearances before buying. For factory integration, the D-6.1200 lists eight speaker-level inputs as well as six balanced RCA inputs.
The Audison SR 6.600 also describes speaker-in and RCA-in options. Open-air use calls for a different check: the Sundown Audio SDX-100.6 is described as weatherproof, and the KICKER 48KMA6006 has moisture-repelling coated boards and stainless hardware.
These features may suit exposed or marine installations, but they do not establish identical protection levels. Verify the product’s installation guidance for your specific location.
How to Choose a Six-Channel Car Amplifier
RMS output and speaker impedance
Look for RMS output specified at the impedance your speakers use, and compare per-channel figures rather than relying on peak power. The CT Sounds CT-150.6D lists 150 watts x6 at 4 ohms and 230 watts x6 at 2 ohms; the Cerwin-Vega H900.6D lists 100 watts x6 at 4 ohms and 150 watts x6 at 2 ohms. The DS18 G3600.6D lists 200 watts RMS x6 at 4 ohms.
Buyers with speakers needing moderate output may prefer the Cerwin-Vega figures, while systems with compatible speakers that can use higher output may favour the DS18 or CT Sounds. Check speaker power handling and impedance before selecting.
Channel layout and bridging
Choose an amplifier whose channel arrangement suits your planned speakers and any bridged load. The CT Sounds CT-150.6D can run a front component set and rear coaxial set, with channels five and six bridgeable for 520 watts RMS at 4 ohms. The Cerwin-Vega H900.6D lists bridging in pairs to 300 watts x3 at 4 ohms, while the Sundown Audio SDX-100.6 lists 300 watts x3 bridged at 4 ohms.
Those options may suit a setup that needs fewer, higher-output channels; a six-speaker layout may instead use all six channels separately. The AudioControl D-6.1200 can be configured as a six-, five-, four-, or three-channel amp.
Confirm the permitted load and wiring arrangement in the model’s documentation.
Inputs, tuning, and installation environment
Check input types, crossover controls, and environmental features against your head unit and mounting location. The AudioControl D-6.1200 lists eight speaker-level inputs and six balanced RCA inputs, making it a candidate for factory or aftermarket signal paths; the CT Sounds CT-150.6D lists four-way protection circuitry. For adjustment flexibility, the DS18 G3600.6D lists high-pass, band-pass, and full-range crossovers plus bass boost, while the Audison SR 6.600 describes adjustable high- and low-pass filters.
If the amplifier will be exposed to moisture, the Sundown Audio SDX-100.6 is described as weatherproof and the KICKER 48KMA6006 has coated circuit boards and stainless hardware. Buyers installing inside a protected cabin can prioritize signal and tuning needs instead.
Which Six-Channel Car Amplifier Should You Choose?
For a flexible six-speaker system with clearly stated per-channel output and a bridged pair option, choose the CT Sounds CT-150.6D. If you want stronger listed RMS output at 4 ohms and adjustable crossover and bass controls, consider the DS18 G3600.6D. Choose the AudioControl D-6.1200 when integrated DSP, speaker-level inputs, and multiple channel configurations are priorities.
The Cerwin-Vega H900.6D is a compact option with a stated 11 x 6.3 x 1.9-inch footprint and useful per-channel figures. For open-air installations, look at the Sundown Audio SDX-100.6’s stated weatherproof design.
Before ordering any model, check speaker impedance, RMS power handling, input compatibility, and available mounting space; the supplied product information does not establish fit for every vehicle or system.
Related Buying Guides
Frequently Asked Questions
How do I match amplifier RMS power and impedance to my car speakers?
Compare the amplifier’s RMS output per channel at the speaker’s impedance with each speaker’s RMS power handling. Check the wiring configuration too, since it can change the load the amplifier sees. Use ratings for the same impedance, and avoid assuming that a peak-power figure represents continuous output.
Can a six-channel amplifier power a subwoofer as well as speakers?
Yes, if the amplifier supports bridging or another suitable subwoofer configuration and the resulting impedance is within its specifications. Bridging channels reduces the number available for separate speakers, so plan the system layout first. The CT Sounds model, for example, lists a bridged-pair option; check each model’s manual before connecting a subwoofer.
What wiring and electrical upgrades might a six-channel amplifier require?
Requirements depend on the amplifier and vehicle. Check the specified power and ground cable, fuse, remote turn-on connection, and whether the inputs match your source unit. Confirm that the vehicle’s electrical system can support the installation, and consult the manufacturer’s instructions or a qualified installer before deciding whether upgrades are needed.
How can I check whether an amplifier will fit in my car?
Measure the intended mounting area and compare it with the amplifier’s published dimensions, while allowing room for wiring, ventilation, and access. Verify the mounting location is suitable for the product and vehicle. The supplied information does not confirm fitment for every car, so check dimensions and installation guidance before ordering.
When is an amplifier with integrated DSP worth considering?
Integrated DSP is worth considering when you want signal-processing control as part of the amplifier and need to configure multiple system layouts. The AudioControl D-6.1200 is the group’s DSP-focused option. Compare its input compatibility and configuration features with your source unit and speaker plan before choosing it over an amplifier selected for output figures.
Final Words
For a flexible six-speaker setup with clearly stated channel output and a bridged-pair option, the CT Sounds CT-150.6D is the group’s best overall choice. Consider the AudioControl D-6.1200 when integrated DSP and configuration flexibility matter most, or the DS18 G3600.6D for its stated 4-ohm output and adjustable controls. Before ordering, verify impedance, RMS handling, input compatibility, and mounting space for your particular vehicle.
