Good looking champagne Denon amp. With very good phono input. Easy to use Pictures are description. This is normal looking color for this range. Manufacturer: Denon Model: PMA-250' Year of manufacture: 1987 Made in: Japan Color: Black, Silver,Copper Type: Analog Remote control: No Power consumption: 80 W Dimensions: 435 x 85 x 250 mm (WxHxD) Weight: 4.7 kg Original price approx.: 349-399,- DM Model variants: E2 Europe EK UK EI Asia EU USA EC Canada EA Australia Ports Number of inputs: Phono (2.5mV 47kOhm) (RIAA MM). CD/CD direct (150mV 47kOhm) Tuner (150mV 47kOhm) Aux (150mV 47kOhm) Tape IN (150mV 47kOhm). Number of outputs: 1 speaker pair 4..16 Ohm Headphones 6,3mm jack Tape Record-Out Technical Data Continuous power 8 Ohm: 2x 25 W (1kHz THD 1%) 4 Ohm: 2x 40 W (1kHz THD 1%) Dynamic power 8 Ohm: n.a. 4 Ohm: n.a. Total harmonic distortion: 0.05% (-3dB rated Output, 8 Ohm) Attenuation factor: n.a. Frequency response: 10 ... 40,000 Hz Signal to noise ratio: 72 dB, 96 dB Stereo channel separation: n.a. Tone control: Bass: 100 Hz ± 10 dB Treble: 10 kHz ± 10 dB Loudness: no High Filter: no Low Filter (Subsonic): no Mute: no Direct/Line-Straight: no Special Features Balance control via double volume control on one axis red LED signals that the unit is switched on switch for tape monitor; tape playback is not provided via the source selector switch switch for CD-Direct, bypasses only the source switch and the tape monitor switch, but in principle passes through the tone control, Headphones switch off main speakers when plugged in; except U.K. model. Model variants USA, Canada and Asia have additional power connections Speaker clicks when switched off regardless of volume setting Electronics Amplifier discrete push-pull output stage with bipolar transistor pair 2SC3853/2SA1489 (conceivable European replacement types: TIP3055/TIP2955, TIP140/TIP145 (Darlington)) Fuse protection of the power amplifiers per channel by F4.0A fine-wire fuse on the motherboard Adjustment of quiescent current setting rudimentary possible, exact adjustment requires disassembly down to PCB solder side uPC1225H driver module phono stage with OP M521BP Tone control in feedback path between output power stage and input driver stage Headphones connected via series resistor to output stage Power supply: 2x 27VAC nominal voltage (center tap) ; 2x 32VAC idle. 1x bridge rectifier (MB2U) 2x 8200uF filtering to ±36VDC -> supply output stage 2x linear longitudinal regulation to ±16,5VDC -> supply phono stage protection of the power side by T1,0A fine-wire fuse inside the unit Carefully insured shipped