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4-channel marine amplifier — 60 watts RMS x 4 (New Stock)
Item # 158XM604M | MFR # XM604M
This item is no longer available.
Our take on the Sony XM-604M by Crutchfield's Leigh Schoettinger
When it comes to buying audio equipment for your boat, you need gear that's tough enough to withstand abuse from the waves, the sun, and whatever else the weather may bring. Sony's XM-604M 4-channel marine amplifier handles all that with flying colors so you can enjoy great music out on the water.
The XM-604M features a special coating that protects the circuit board against damage from mold, mildew, and moisture, while gold-plating helps the RCA connectors resist corrosion. You can expect long-term durability from this well-tested design.
The highly efficient power supply ensures that you get stable, regulated output power for clear, unmuddled sound. The built-in high- and low-pass filters direct different frequencies to the appropriate speakers for maximum system efficiency. If you're using the speaker-level inputs, the amplifier powers up automatically when it senses a signal so you don't have to run a separate turn-on wire. You can bridge the amplifier's rear channels, turning it into a 3-channel amp.
LOVE this AMP, really puts out the power and makes my system sound great. Thanks so much for all of great help.
chris, Stuarts Draft, VA
What's in the Box:
- Four-channel marine amplifier
- 8.5" Speaker-level harness
- 4 Mounting screws
- Rubber terminal cover
- Operating Instructions (English/French)
- Operating Instructions (Spanish)
- Operating Instructions (German)
- US Limited Warranty sheet
- Canada Consumer 1 Year Warranty sheet
- European Guarantee Information Document
- 4-channel marine amplifier
- 4- or 3-channel output (no 2-channel operation)
- conformal coated circuit board
- gold-plated connectors
- line- and speaker-level inputs
- pulse power supply for stable and regulated output power
- 60 watts RMS x 2 + 150 watts RMS x 1 in 3-channel mode
- built-in low-pass filter (80 Hz, 18 dB per octave) and high-pass filter (80 Hz, 12 dB per octave)
- CEA-2006 compliant
- 15-7/8" W x 2-1/4" H x 10-3/8" D
- warranty: 1 year
- Our 60-day money-back guarantee
Sony XM-604M Reviews
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Features and Specs
|RMS Power Output (Watts x Channels)||60 x 4|
|Frequency Response at Rated RMS Power||20-20k Hz|
|THD at Rated RMS Power||1%|
|Signal to Noise Ratio||97 dB|
|Peak Power Output (Watts x Channels)||110 x 4|
|Power at 2 Ohms (Watts x Channels)||70 x 4|
|Bridged Power (Watts x Channels)||N/A|
|Minimum Impedance Bridged||4|
|Minimum Impedance Unbridged||2|
|Low-Pass Crossover Frequency||80 Hz|
|Low-Pass Slope (dB/octave)||18 dB|
|High-Pass Crossover Frequency||80 Hz|
|High-Pass Slope (dB/octave)||12 dB|
|Bass Boost Frequency||N/A|
|Fuse Rating||25 x 2|
|Speaker Level Inputs||Yes|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
Marine Amplifier: The Sony XM-604M marine amplifier is designed to be used in the harsh marine environment. It features specially conformal coated circuit boards and gold-plated connectors that resist mold, mildew, and moisture damage.
Pulse Power Supply: This amplifier has a built-in power regulator which converts the power supplied by the 12 V DC marine battery into high speed pulses using a semiconductor switch. These pulses are stepped up by the built-in transformer and separated into both positive and negative power supplies before being converted into direct current again. This is to regulate fluctuating voltage from the marine battery. This light weight power supply system provides a highly efficient power supply with a low impedance output.
CEA-2006 Compliant: The amplifier is CEA-2006 compliant and is rated at 60 Watts RMS x 4-channel in 4ohms at 20-20,000 Hz with 1% THD+N and a signal-to-noise ratio of 97 dBA.
Bridgeable: The Sony XM-604M marine amplifier is designed for 4-channel or 3-channel applications. You can use the amplifier to power two pair of full-range speakers or the rear channels can be bridged to power a subwoofer while the front channels remain stereo to play your full-range speakers. The amplifier's peak output in 3-channel mode is 110 Watts x 2 + 300 Watts x 1 in 4 ohms.
Protection Circuit and Indicators: The amplifier features the following protection circuitry.
- Voltage Loss: the Power/Protector indicator will not light up if the amplifier does not sense at least 10.5 - 16V
- Short Circuit: the Power/Protector indicator will light up Red when the amplifier senses a short circuit
- Sound Interrupt: the thermal protector guards the amplifier from overheating and will shut the amplifier down if it gets too hot
Gain Controls: The rotary gain controls allow you to independently set the gain for the Front Channels and Rear Channels from 0.3V to 6.0V.
High-Pass Crossover: The amplifier features an 80Hz, 12db per octave high-pass crossover for the front channels.
Low-Pass Crossover: The amplifier also features an 80Hz, 18db per octave low-pass crossover for the rear channels.
Gold-plated Connectors: The RCA jacks, power and speaker terminals are gold plated for corrosion resistance and maximum signal transfer.
Front of the Amplifier: All of the amplifier's connections are found on the front of the amp.
- Fuse: Two 25 amp fuses
- Power: Screw terminal (0.375" wide); will accept up to 8-gauge power wire
- Ground: Screw terminal (0.375" wide); will accept up to 8-gauge ground wire
- Remote Turn-On: Screw terminal (0.375" wide)
- Speaker Outputs: 8 Screw terminals (0.375" wide)
- Speaker-Level Input: 8-pin input for use with included speaker level input harness
- Front and Rear Line In: Two pair RCA inputs
Speaker Level Input: One 4-channel speaker-level input harnesses is included, allowing you to connect the amplifier to a receiver without RCA line level outputs. The harness has an 8-pin Molex plug that easily connects to the amplifier. The amplifier also is equipped with a Hi-Level Sensing Power On feature that allows the unit to be activated without need for the Remote turn-on connection when using the speaker level harness.
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1 question already asked
1 answer I purchased the xm-604 amp last year and using it driving 4 speakers connected back to receiver via RCA pre-amp connections. I'm getting a new boat and the new boat only has 2 channel pre- amp output and am going to be moving the amp to the new boat. My question is, can i use RCA Y-cables to split the 2 channel output from the new receiver to the AMP so i can drive 4 speakers connected to the AMP? I certainly don't want to damage either the new receiver or the AMP but really don't want to buy a new receiver if I don't to, yet anyway. Thanks. [ Terrence Jan 13, 2014 ]
This should work fine. When you use the Y-cables you will be splitting this signal. As long as you are still getting at least 0.3 volts of signal to the inputs it will work fine. This amp also has speaker level inputs, so you could potentially get signal to the amp that way as well (depending on how the system on the boat is set-up). [ Jeff Jan 13, 2014 ] Staff