Sony XM-1252GTR Service Manual

Also see for XM-1252GTR - Power Stereo Amplifier: Limited warranty Specification sheet Operating instructions Operating instructions

Contents

1SERVICE MANUALUS ModelCanadian ModelE ModelXM-1252GTRSTEREO POWER AMPLIFIEROther SpecificationsCircuit system OTL (output transformerless) circuitPulse power supplyInputs RCA pin jacksHigh level input connectorOutputs Speaker terminalsSuitable speaker impedance2 – 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 ΩRated 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 range0.3 – 6.0 V (RCA pin jacks)1.2 – 12.0 V (High level input)Low-pass filter 80 Hz, –12 dB/octHigh-pass filter 80 Hz, –12 dB/octLow boost 0 – 10 dB (40 Hz)Power requirements 12 V DC car battery(negative ground)Power supply voltage 10.5 – 16 VCurrent drain at rated output : 32 A (at 4 Ω)Remote input : 1 mADimensions Approx. 322 × 55 × 275 mm(12 3/4 × 2 1/4 × 10 7/8 in.)(w/h/d) not incl. projecting parts and controlsMass Approx. 4.4 kg (9 lb. 12 oz.) not incl. accessoriesSupplied accessories Mounting screws (4)High level input cord (1)Design and specifications are subject to change withoutnotice.SPECIFICATIONSAUDIO POWER SPECIFICATIONS (US MODEL)POWER OUTPUT AND TOTAL HARMONIC DISTORTION125 watts per channel minimum continuous average power into4 ohms, both channels driven from 20 Hz to 20 kHz with no morethan 0.1% total harmonic distortion per Car Audio Ad HocCommittee standards.+0–3Ver. 1.0 2005. 129-879-998-012005L04-1© 2005. 12Sony CorporationeVehicle DivisionPublished by Sony Engineering Corporation