Sony XM-1252GTR

2-channel car amplifier
125 watts RMS x 2

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Item# 158XM1252

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Sony Xplod XM-4S
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Category Info
Accessories

Our take on the Sony XM-1252GTR

by Ken Nail

Sony's Xplod amps combine form and function in a mix that'll make your system look and sound great. On the outside, the sleek inverted heat sink keeps vital internal components running cooler and lasting longer. Removable terminal covers keep all the wire connections protected and out of sight for a clean-looking installation.

Underneath the hood, the 2-channel XM-1252GTR delivers 125 watts to two channels, or 340 watts in single-channel operation — plenty of power for many subwoofer systems. Signal-sensing speaker-level inputs activate the amp automatically when you turn on your factory radio, so there's no remote turn-on lead for you to install.

Built-in frequency filters tailor the sound to fit the application, while a bass boost adds extra punch to the lows.

Highlights:

2-channel car amplifier
125 watts RMS x 2 at 4 ohms (170 watts RMS x 2 at 2 ohms)
340 watts RMS x 1 at 4 ohms (4-ohm stable in bridged mode)
low- and high-pass filters (80 Hz, 12 dB/octave)
variable bass boost (0-10 dB at 40 Hz)
MOSFET outputs and power supply
Tri-way capable (Tri-Way crossover required)
CEA-2006 compliant
speaker-level inputs with signal sensing for automatic turn-on
preamp inputs
fuse rating: 30A x 2
4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
12-3/4"W x 2-1/4"H x 10-13/16"D
warranty: 1 year
Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and specs chart | What’s in the box? | In-depth notes

Features and Specs

Performance
RMS Power Output (Watts x Channels) Loading...	125 x 2
Peak Power Output (Watts x Channels) Loading...	280 x 2
Power at 2 Ohms (Watts x Channels) Loading...	170 x 2
Bridged Power (Watts x Channels) Loading...	340 x 1
Minimum Impedance Bridged Loading...	4
Minimum Impedance Unbridged Loading...	2
Best Frequency Response Loading...	5-50k Hz
THD at Rated RMS Power Loading...	0.1%
Signal to Noise Ratio Loading...	N/A
Input Voltage Loading...	14.4v
Features
Amplifier Class Loading...	AB
Low-Pass Crossover Frequency Loading...	80 Hz
Low-Pass Slope (dB/octave) Loading...	12 dB
High-Pass Crossover Frequency Loading...	80 Hz
High-Pass Slope (dB/octave) Loading...	12 dB
Bass Boost Loading...	0-10 dB
Bass Boost Frequency Loading...	40 Hz
Fan Cooled Loading...	No
Fuse Rating Loading...	30 x 2
Speaker Level Inputs Loading...	Harness
Preamp Outputs Loading...	No
Width (inches) Loading...	12-3/4
Height (inches) Loading...	2-1/4
Depth (inches) Loading...	10-13/16
Parts Warranty Loading...	1 Year
Labor Warranty Loading...	1 Year

Product Research

What's in the box?

Download owner's manual

Two-channel amplifier
8" Speaker-level input harness (with 4-pin Molex plug on one end)
4 Hex-head self-tapping screws (5mm diameter x 15mm)
Operating instructions (English/French)
Warning sheet on speaker wiring configurations
Warranty sheet

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Inputs and Outputs Notes
Specifications

Features

Protection Circuitry: The Sony XM-1252GTR amplifier has 3-way protection circuitry, which protects the amplifier in the following cases:

Thermal: shuts off the amp when the operating temperature is too high
Short circuit: shuts off the amp when the speaker outputs are short-circuited
DC Offset: shuts off the amp when the speaker wires or ground lead is not securely connected, generating direct current

Protector LED: The amplifier has an LED on the top panel that glows red when the protection circuit is activated.

Internal Filter: The built-in filter can be set for low-pass, high-pass, or full-range operation. The filter is fixed at 80Hz with a slope of 12dB/octave.

Inputs and Outputs Notes

Power/Ground Terminals: The power and ground screw terminals are 0.54" wide to easily accommodate 4-gauge wire.

Speaker-level Input Harness: The amp comes with a 2-channel speaker-level input harness with a 4-pin Molex plug on one end. This allows you to more easily connect this amplifier to a factory deck or a receiver without preamp outputs.

Bridging the Amplifier: When bridging the amplifier, the line input jack and speaker output terminals labeled "BTL" are used. The input signal is plugged into the left channel input and the output signal comes from the left positive and right negative speaker terminals.

Specifications

RMS Power Output (supply voltage at 14.4 Volts):

125 watts x 2 into 4 ohms (20Hz to 20kHz, 0.1% THD)
170 watts x 2 into 2 ohms (20Hz to 20kHz, 0.15% THD)
340 watts bridged into 4 ohms (20 Hz to 20kHz, 0.15% THD)

Maximum Power Output:

280 watts x 2 into 4 ohms
400 watts x 2 into 2 ohms
800 watts bridged into 4 ohms

Current Drain: at rated output: 32A (at 4 ohms)

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1-10 of 11 items >> Sort Results By: Date Reviewed | Rating | Helpfulness

5 out of 5

Great Punch, Great Price!!!

Written By DOrtiz357, Chicago, IL on Monday, December 22, 2008

I bought this to replace a cheap amp i was using to power my Pioneer TS-W252R 10" Subwoofer. The power supplied by this Sony amp was way too much for that sub. I returned the sub and bought a Pioneer TSW257D4 10". NICE!!!!!!!! Its powers it up nicely and sounds so GREAT!