Audio Database

The

DENON POA-5000
200,000yen(around the 1991 time)

Description
 
AV power amplifier which carries a new optical class A circuit original with DENON in all the channels.

In the new optical class A circuit, sound quality which was excellent in no one but [ Class-A ], and high efficiency are realized by [ with a general pure listening power level ] carrying out magnification operation as a Class-A.
Moreover, by "optical combination" which transmits the control signal from a bias control circuit to a bias circuit, while eliminating completely interference between the main signal system and a bias controlling circuit, high speed-ization of bias control is realized by using an optical element.

Each channel of a front, a center, and rear becomes independent, respectively, and a setup of a stereo and a mono-bridge is possible for it.

The current supply to an output power stage supplies "a front (four pieces), a center (two pieces), and rear (two pieces) one" from the power supply circuit which became independent, respectively using a total of eight condensers.
The ideal electric power supply which between mutual channels influences and does not suit it in the time of high power, either is possible.

At the chassis construction, each of a control part, L channel power stage, R channel power stage, and a power-source part is completely separated using a copper-coating chassis, and the dirt of sound and muddiness are eliminated by suppressing a mutual intervention to the minimum.

Level volume is carried in each input and adjustment of a surround level is possible.
Moreover, in order to pursue a more nearly quality sound, the direct switch which bypasses each volume is equipped.

By connecting with AVP-5000 of AV preamplifier by a remote cable, AVP-5000 is interlocked with and power-source ON-STANDBY is switched automatically.
The high-speed protector circuit is carried.

Rear
Power-source

Rating of a mode
Form AV power amplifier
Output power
(20Hz - 20kHz, THD 0.02%)
At the time of a stereo
Front: 140W+140W (6ohms)
100W+100W (8ohms)
Center: 70W+70W (6ohms)
50W+50W (8ohms)
Rear: 70W+70W (6ohms)
50W+50W (8ohms)
At the time of a mono-bridge
Front: 280W (6ohms)
200W (8ohms)
Center: 140W (6ohms)
100W (8ohms)
Rear: 140W (6ohms)
100W (8ohms)
Input sensitivity/impedance stereo: 1Vrms/47kohm
mono: 0.7Vrms/47kohm
THD (all the channels) 0.008% (8-ohm load, THD 0.05%)
Cross modulation distortion (all the channels) 0.005% (60Hz : 7kHz=1:4 or 8-ohm load, Output-power equivalent amplitude output)
Output bandwidth (all the channels) 50Hz - 50kHz (8-ohm load, THD 0.05%)
Signal to noise ratio stereo:118dB
mono:113dB
Output load impedance stereo: 0.08ohm
mono: 0.16ohm
Frequency response stereo: 1Hz - 100kHz
mono: 2Hz - 80kHz
Speaker terminal load impedance stereo, mono:6-ohmmin
Power supply voltage AC100V, 50Hz/60Hz
Power consumption 450W
Dimensions Width 434x height 184x depth of 434mm
Weight 24.2kg