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RetroSound Stereophonic 3-channel car amplifier — 65 watts RMS x 2 at 4 ohms + 229 watts RMS x 1 at 2 ohms

Item # 068STEREO

RetroSound's neat-looking Stereophonic 3-channel amplifier can power your entire system, sending 65 watts RMS...

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RetroSound's neat-looking Stereophonic 3-channel amplifier can power your entire system, sending 65 watts RMS...

1 question - 1 answer

Item # 068STEREO

$189.99

About the RetroSound Stereophonic

Buck Pomerantz

Centralized power

RetroSound's neat-looking Stereophonic 3-channel amplifier can power your entire system, sending 65 watts RMS to each of your front speakers while delivering up to 229 watts RMS to your sub. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a compact chassis less than 2 inches high that'll fit in a lot of out-of-the-way locations.

Centralized power

RetroSound's neat-looking Stereophonic 3-channel amplifier can power your entire system, sending 65 watts RMS to each of your front speakers while delivering up to 229 watts RMS to your sub. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a compact chassis less than 2 inches high that'll fit in a lot of out-of-the-way locations.

For the loud crowd

You can also set up the Stereophonic for 2-channel operation, powering a single high-performance speaker with 190 watts RMS each, while sending 229 watts to a sub. High- and low-pass filters, with steep 24 dB per octave slopes, let you fine-tune the signal to precisely match your particular speakers and subwoofer. The Stereophonic's subwoofer channel features a bass boost, so you can really pile it on if you want.

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Product highlights:

  • 3-channel car amplifier
  • 65 watts RMS x 2 + 170 watts RMS x 1 at 4 ohms
  • 90 watts RMS x 2 + 229 watts RMS x 1 at 2 ohms
  • 180 watts RMS x 1 bridged at 4 ohms + 229 watts RMS x 1 at 2 ohms
  • Class D amp technology
  • variable high-pass filter (40-400 Hz, 24 dB/octave) on front channels
  • variable low-pass filter (50-250 Hz, 24 dB/octave) on subwoofer channel
  • variable bass boost (0-12 dB at 50 Hz) on subwoofer channel
Other Features:
  • RCA preamp inputs
  • fuse rating: 40A x 1
  • wiring and hardware not included with amplifier
    • 8-gauge power and ground leads recommended
  • dimensions: 10-3/16"W x 1-7/8"H x 5-5/16"D
  • warranty: 1 year
  • MFR # STEREOPHONIC

What's in the box:

  • 3-channel amplifier
  • Two 40 amp ATO fuses (1 installed/1 spare)
  • 4mm Allen wrench
  • 2mm Allen wrench
  • Four 3/4" Screws
  • Owner's manual
  • RetroSound contact information

Customer reviews for RetroSound Stereophonic

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4.5 out of 5 stars
3 reviews

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More details on the RetroSound Stereophonic

Mark G.

Product Research

Features

Channel Configuration: The Stereo Phonic is a 3-channel amp; essentially a full range 2-channel amp and a mono subwoofer amp built into one chassis. The full range section is bridgeable, so the it can be configured as a 3-channel or 2-channel amplifier.

  • Channels 1/2:
    • 4Ω: 65 watts RMS x 2-channels
    • 2Ω: 90 watts RMS x 2-channels
    • Bridged: 180 watts RMS x 1-channel into 4Ω
  • Channel 3:
    • 4Ω: 170 watts RMS x 1-channel
    • 2Ω: 229 watts RMS x 1-channel

Gain Control: The input levels are independently adjustable for channels 1/2 and channel 3. The input range for both is 200mV to 6.0 Volts.

Crossover: The amp has independent crossover controls for channels 1/2 and channel 3. The crossover slopes for both are 24 dB/octave:

  • Channels 1/2: high pass; rotary dial; continuously variable 40-400 Hz
  • Channel 3: low pass; rotary dial; continuously variable 50-250 Hz

Input Mode: The two position input mode switch allows choosing 2-channel (only the channel 1/2 RCA inputs are active) or 3-channel (all 4 RCA inputs are active).

Bass Boost: The bass boost on channel 3, centered at 50 Hz, is continuously variable from 0 dB (flat) to +12 dB.

Power Input: Two set-screw terminals are provided for connecting the power and ground cables. The terminals accept up to 4-gauge wire. The set screws are tightened/loosened with the included 4mm Allen wrench.

Remote: The remote turn-on set screw terminal accepts up to 10-gauge wire. The set screw is tightened/loosened with the included 2mm Allen wrench.

Speaker Outputs: The three pair of speaker output set-screw terminals will accept up to 10-gauge wire. The set screws are tightened/loosened with the included 2mm Allen wrench.

Signal Input: The amplifier has two pair of RCA input jacks, labeled channel 1/2 and channel 3.

Fuses: The amp has one 40-amp ATO fuse, behind a cover panel on the bottom of the amp.

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Customer Q&A

1 question already asked

Q
Can this amp power small ds 18 sound bar and a jl audio w5 sub in a Jeep Wrangler?
darrell  Aug 28, 2023
1 answer
A
I see no reason why not, Darrell. Wattage wise it looks like most of the passive DS 18 bars can handle around 100-watts RMS and are decently efficient. They will work well on the 65-watts by 2 channels, and you can send around 170-watts to the JL subwoofer if it is a 4-ohm TW5. This would provide good sound quality and decent bass without being overpowering. This Retrosound Stereophonic 3-channel is a little gem! It is not marine rated for water exposure, so make sure to mount it in a good location to avoid any moisture in your Jeep.
bo  Aug 29, 2023 (Staff)

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