1
SERVICE MANUAL
US Model
Canadian Model
E Model
XM-1252GTR
STEREO POWER AMPLIFIER
Other Specifications
Circuit system
OTL (output transformerless) circuit
Pulse power supply
Inputs
RCA pin jacks
High level input connector
Outputs
Speaker terminals
Suitable speaker impedance
2 – 8
Ω
(stereo)
4 – 8
Ω
(when used as a bridging amplifier)
Maximum outputs
280 W
×
2 (at 4
Ω
)
400 W
×
2 (at 2
Ω
)
800 W (monaural) at 4
Ω
Rated outputs (supply voltage at 14.4 V)
125 W
×
2 (20 Hz – 20 kHz, 0.1% THD,
at 4
Ω
)
170 W
×
2 (20 Hz – 20 kHz, 0.15% THD,
at 2
Ω
)
340 W (monaural) (20 Hz – 20 kHz, 0.15% THD,
at 4
Ω
)
Frequency response
5 Hz – 50 kHz ( dB)
Input level adjustment range
0.3 – 6.0 V (RCA pin jacks)
1.2 – 12.0 V (High level input)
Low-pass filter
80 Hz, –12 dB/oct
High-pass filter
80 Hz, –12 dB/oct
Low boost
0 – 10 dB (40 Hz)
Power requirements
12 V DC car battery
(negative ground)
Power supply voltage
10.5 – 16 V
Current drain
at rated output : 32 A (at 4
Ω
)
Remote input : 1 mA
Dimensions
Approx. 322
×
55
×
275 mm
(12
3/4
×
2
1/4
×
10
7/8
in.)
(w/h/d) not incl. projecting parts and controls
Mass
Approx. 4.4 kg (9 lb. 12 oz.) not incl. accessories
Supplied accessories
Mounting screws (4)
High level input cord (1)
Design and specifications are subject to change without
notice.
SPECIFICATIONS
AUDIO POWER SPECIFICATIONS (US MODEL)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
125 watts per channel minimum continuous average power into
4 ohms, both channels driven from 20 Hz to 20 kHz with no more
than 0.1% total harmonic distortion per Car Audio Ad Hoc
Committee standards.
+0
–3
Ver. 1.0 2005. 12
9-879-998-01
2005L04-1
© 2005. 12
Sony Corporation
eVehicle Division
Published by Sony Engineering Corporation