Audio Database

PMA-910V
Commentary

This pre-main amplifier is designed for high quality and casual that can be enjoyed from audio to visual.

IC with excellent S/N and distortion characteristics is adopted for the drive stage, and large capacity Pc60W, f is adopted for the final stage.TA power stage using a 20 MHz power transistor is configured.

In order to play characters from all sound sources, the motherboard chassis layout is designed to simplify the circuitry and idealize the layout of parts and wiring.

For sound quality control, we use continuously variable loudness control which also serves as tone control function.
It is characterized by stable operation without degradation of distortion factor observed in general tone circuits.

Model Rating
Type Pre-main amplifier
Power Amplifier Unit
Rated Output (20 Hz ~ 20 kHz) 35W + 35W (8 Ω)
Maximum practical power 40W + 40W (8 ohm, EIAJ)
45W + 45W (6 ohm, EIAJ)
Input Sensitivity / Impedance CD Input : 150mV/30k Ω
Total harmonic distortion factor 0.003% (1 kHz, 17.5W, 8 Ω)
Cross modulation distortion factor 0.03% (equivalent to 35W, 8 Ω)
Dynamic Power 70W/4 Ω
Output bandwidth 10 Hz to 40 kHz (17.5W, 0.1%, 8 Ω)
Frequency characteristic 5 Hz ~ 150 kHz, + 0 -3dB (1W, 8 Ω)
Output impedance 0.18 Ω
Output terminal Speaker : AORb : 6 ~ 16 Ω, A + B : 12 ~ 16 Ω
Headphone Jack Maximum Output : 100 mW (8 Ω), 8 ~ 400 Ω Compatible
Preamplifier Section
Input Sensitivity / Impedance Phono MM : 2.5mV/47k Ω
CD, Video1, 2/Tuner, Tape1, 2 : 150mV/30k Ω
Maximum Output / Rated Output 10V/150mV(Rec Out)
RIAA deviation 20 Hz to 20 kHz ± 0.5 dB
<General>
SN ratio (input short-circuit
Audibility correction A)
Phono MM : 72 dB (at 2.5 mV input)
Line : 100 dB (at 150 mV input)
Loudness property
(continuously variable)
Low : 100 Hz, + 6 dB max.
High frequency : 10 kHz, + 6 dB maximum
Power consumption 75W (Electrical Appliance and Material Control Law)
Pwer 100 VAC, 50Hz/60Hz
External dimensions Width 434x Height 97.5x Depth 270 mm (including foot, knob, terminal, etc.)
Weight 5.2kg