User manual DENON PMA-250SE

[. . . ] The chassis is divided to enable efficient placement of circuits so that left and right signal paths do not interfere with each other and negatively affect sound quality between the two channels. s 80 W + 80 W. [. . . ] This is an innovative design by DENON that finally resolves the conflicting problem of how to produce a solid capacity to drive the speakers while preserving the delicate details of the music. The PMA-250SER provides 80 watts per channel into 8 ohms with nearly double that into 4 ohms to drive virtually any speaker system. Superior current linearity ensures a stable supply of current to the speakers, bringing out all of the dynamic range irrespective of impedance or efficiency. s Leakage Canceling Dual Power Transformers The PMA-250SER features dual parallel-connected twin transformers with vastly improved characteristics in the magnetic and coiled wire circuits as originally developed for the DENON POA-S1 monaural power amp. A large rectifier bridge with superior ability to supply high current and a first recovery diode with dramatically accelerated operating speed have been connected in parallel so that the PMA-250SER can accommodate both high speed and high current, to ensure true low impedance drive capability. s Highly Rigid, 6-Block Separated Chassis The highly rigid chassis of the PMA-250SER is based on the twin monaural construction featuring independent power amp blocks for the left and right channels in order to eliminate degradation in sound quality caused by noise and mutual interference between the circuits. In addition, circuits handling signals of different levels are also isolated in their own separate blocks, resulting in a sophisticated 6-block design that preserves signal purity all the way from input to output. s Large, Gold-Plated Speaker Terminals Supporting Bi-Wiring s High-Performance MM & MC Phono Stage s Premium Parts Selected for Best Sound Quality High current, high voltage, low ESR storage capacitors Specifications s Power Amp Section Rated output, both channels driven Total Harmonic Distortion s Preamplifier Section Input sensitivity/Impedance PHONO CD, TUNER, DVD/AUX TAPE-1/DAT, TAPE-2/MD RIAA deviation/PHONO s General Characteristics S/N ratio (A-weighted) PHONO CD, TUNER, DVD/AUX Tone controls s Other Specifications Power supply Power consumption Dimensions Weight 80 W + 80 W (8 ohms, 20 - 20 kHz, 0. 07%THD) 160 W + 160 W (4 ohms, DIN 1 kHz, 0. 7%THD) 0. 01% (-3 dB rated output, 8 ohms load) 2. 5 mV/47 kohms (MM), 200 µV/100 ohms (MC) 150 mV/47 kohms (Source Direct OFF) 150 mV/47 kohms (Source Direct OFF), 150 mV/13 kohms (Source Direct ON) 20 Hz ~ 20 kHz ±0. 3 dB (MM/MC) 91 dB (MM), 76 dB (MC) 110 dB (input terminals shorted/Source Direct ON) 100 Hz ±8 dB (BASS), 10 kHz ±8 dB (TREBLE) AC 120 V, 60 Hz 6A 434 (W) x 180 (H) x 478 (D) mm (including feet, knobs, terminals) 17-1/8" x 7-1/8" x 18-3/4" 20. 0 kg, 44 lbs *Design and specifications are subject to change without notice. DENON ELECTRONICS DIVISION OF DENON CORPORATION (USA) 222 NEW ROAD, PARSIPPANY, NEW JERSEY 07054, USA TEL: 973-396-0810 www. del. denon. com DENON CANADA INC. 17 DENISON STREET, MARKHAM ONTARIO, CANADA L3R 1B5 TEL: 905-475-4085 LABRADOR S. A. [. . . ] 06140 TEL: 286-55-09/79 NIPPON COLUMBIA CO. , LTD. [. . . ]