Sony XM-280GTX Specification Guide

Design and Specifications subject to change without notice.

• 480W max power
• 80W x 2 RMS into 4W, 20Hz-20kHz @ 0.08% THD
• 200W x 1 RMS into 4W, 20Hz-20kHz @ 0.1% THD
• Class A/B
• Variable 50-300Hz Low Pass Filter
• 40Hz EQ Boost
• RCA & Speaker Level Inputs

Circuit system 

OTL (output transformerless) circuit
Pulse power supply

Inputs 

RCA pin jacks
High level input connector

Outputs 

Speaker terminals
Through out pin jacks

Suitable speaker impedance 

2 – 8 W (stereo)
4 – 8 W (when used as a bridging amplifier)

Maximum outputs 

190 W × 2 (at 4 W)
240 W × 2 (at 2 W)
480 W (monaural) at 4 W

Rated outputs (supply voltage at 14.4 V)

80 W × 2 (20 Hz – 20 kHz, 0.08% THD, at 4W)
100 W × 2 (20 Hz – 20 kHz, 0.1% THD, at 2W)
200 W (monaural) (20 Hz – 20 kHz, 0.1% THD, at 4W)

Frequency response 

5 Hz – 50 kHz (+0.5dB, – 3 dB)

Harmonic distortion 

0.008% or less (at 1 kHz, 4W)

Input level adjustment range

0.2 – 6.0 V (RCA pin jacks)
1.2 – 12.0 V (High level input)

Low-pass filter 

50 – 300 Hz, –12 dB/oct

Low boost 

0 – 10 dB (40 Hz)

Power supply voltage 

10.5 – 16 V

Current drain 

at rated output : 20 A (at 4W)
Remote input : 1 mA

Dimensions 

Approx. 286 × 55 × 196 mm (11 3/8 × 2 1/4 × 7 3/4 in.)
(w/h/d) not incl. projecting parts and controls

Mass 

Approx. 2.5 kg (5 lb. 8 oz.) not incl. accessories

Supplied accessories 

Mounting screws (4)
High level input cord (1)
Protection cap (1)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION
80 watts per channel minimum continuous average power into
4 ohms, both channels driven from 20 Hz to 20 kHz with no more
than 0.08% total harmonic distortion per Car Audio Ad Hoc
Committee standards