Audio Database


110,000yen(2000 release)

The Integrated Amplifier which carries wireless remote control in PMA-2000III.

It is designed not sacrifice the sound quality and the engine performance of PMA-2000III by becoming remote control correspondence.
With remote control, operation of the change of main volume and input sauce, muting, and power-source on/off (two AC outlet linkage) is possible.
Furthermore, CD player of DENON can also be operated.

Independent loading of the power transformer only for a microcomputer is carried out.
Moreover, when not controlling, the microcomputer stop mode which stops all the operation of a microcomputer and prevents inflow of a noise is adopted.

UHC-MOS which is a large current type magnification element is adopted as an output stage, and the UHC single push pull circuit has realized coexistence of delicate power of expression and high power.

Each of the volume circuit, the tone circuit, and the power amplifier circuit was improved, and the maximum of the frequency response at the time of real use is improved to 100kHz. Furthermore, the noise generated within amplifier at the time of real use was stopped by improving a volume circuit, and the resolving power corresponding to a next-generation audio has been obtained.

a magnetic circuit and the twin transformer parallel connection which improves the characteristic of each winding wire circuit are adopted. Moreover, the leakage flux of the power transformer which is a noise source in amplifier is reduced by making influence of magnetic etc. into the L.C. (Leakage Cancelling) mount system canceled mutually.
Furthermore, the floating effect was further heightened by adopting a new gum elastic as the floating structure which combined special rubber, special resin, and the sheet steel, and the bad influence by vibration of a transformer is prevented.

The Schottky barrier diode developed for high frequency rectification is carried in the power-source part. Little play of the noise is enabled by the low-noise characteristic and the large current characteristic by high-speed operation.
Furthermore, it is considered as the circuit which can supply a power source with a margin in all the zones of play frequency by carrying dynamic resistance combining the power transformer reduced sharply and the capacitor by which a mass electrolytic condenser differs from frequency.

In order to reduce inflow of noise current, such as a constant current circuit, to the grand circuit used as the origin/datum of signal magnification, the Precision Signal Ground circuit is carried.

Precision Mechanical Ground structure is adopted and other decreases of oscillating, such as a power transformer, and interference of the oscillating course are suppressed by carrying out direct attachment of the radiator dumped by the gum elastic and the radiator stabilizer at the nearness of FOOT.
Furthermore, measures against vibrationproofing, such as a volume knob which suppresses vibration with top covering which took the measures against vibrationproofing, or high mass, are taken.

In order to suppress sound quality degradation by the mutual intervention between circuits, or inflow of a noise, the power amplifier block was considered as the twin monophonic composition made to become independent by right and left, and also the circuit where signal levels differ was also separated, and 6 block structures which put cover into practice are adopted.

in the speaker terminal, brass shaving appearance is carried out, it plates with gold at a part, and the transmission loss is suppressed. Moreover, the very-thick speaker cable is also supported by setting the bore diameter of a clamp part to phi6mm.
Those with two line and bi-wiring connection are also possible for a speaker terminal.

The first rank circuit of discrete composition of having used low-noise FET is adopted as a phone equalizer part. Moreover, high-quality sound-ization is attained by the regulated power supply only for a phone equalizer.
Both of the cartridges of MM/MC are supported by the change of a switch.

The Pre out terminal is carried.

The SILMIC II electrolytic condenser was begun and the part which the power radiator excellent in the heat dissipation effect, OFC internal wiring material, an inactive gas enclosure relay, high-quality sound carbon resistance, etc. selected carefully is adopted.

The attachment-and-detachment type is adopted as a power cord.


Rating of a mode
Form Integrated Amplifier
<Power amplifier part>
Output power (both channel drive, CD->SP OUT) 80W+80W (8 ohms, 20Hz - 20kHz, THD 0.07%)
160W+160W (4 ohms, 1kHz, THD 0.7%)
THD 0.01% (Output-power-3dB o'clock, 1kHz, 8ohms)
Speaker output terminal Speaker AorB: 4ohms - 16ohms
Speaker A+B: 8ohm-16ohm
Bi-wiring load: 4ohms - 16ohms
<Preamplifier part>
Equalizer amplifier output Rec out:150mV
Input sensitivity/impedance Phono MM: 2.5mV/47kohm
Phono MC: 0.2mV/100 ohms
Line: 140mV/70kohm (Source-Direct-off)
140mV/30kohm (Source-Direct-on)
RIAA deflection Phono: 20Hz-20kHz±0.5dB
Pre-out output 1V (line system input [, such as CD, ] and 100mV of incoming signal o'clock)
Frequency response 5Hz-100kHz+0 -3 dB
Signal to noise ratio
(A network, an input terminal short circuit)
Phono MM: 91dB (at the time of a 5mV input)
Phono MC: 76dB (at the time of a 0.5mV input)
Tone control Bass: ±8dB (100Hz)
Treble: ±8dB (10kHz)
Power receptacle switched: Two lines, the sum total capacity 120W
unswitched: One line, capacity 240W
Power supply voltage AC100V, 50Hz/60Hz
Power consumption 275W
Dimensions (a base, a knob, a terminal included) Width 434x height 180x depth of 478mm
Weight 22.0kg
Attachment: Wireless remote control
Dimensions Width 56x height 105x depth of 19mm
Weight 70g