Audio Database

Image of Integra 733
Commentary

A pre-main amplifier that uses a pure con complimentary service all-stage direct connection circuit in the power amplifier section.

It is possible to connect two systems of speaker Route 3 and tape.

Model Rating
Type Pre-main amplifier
Power Amplifier Unit
Circuit system Pure Con All stages directly connected circuit
Rated Output (1 kHz) 34W + 34W (8 Ω)
Dynamic Power (IHF) 86W (8 Ω)
Total harmonic distortion factor 0.1% or Less (1 kHz at Rated Output)
0.03% or Less (1 kHz at 10W output)
Frequency characteristic 10 Hz to 70 kHz
Power Band With (IHF, -3dB, 0.2%) 10 Hz to 100 kHz
Signal-to-noise ratio (IHF A network) 110 dB or more
Damping factor 100 (DC ~ 20 kHz)
Load impedance 4 Ω ~ 16 Ω
Input Voltage / Impedance (10 hz to 50 khz) 1V/100k Ω
Gain 24dB
Preamplifier Section
Input Sensitivity / Impedance Phono1 : 2.4mV/30k Ω, 50k Ω
Phono2 mm : 2.4mV/50k Ω
Phono2 MC : 100 μ V/80 Ω
MIC : 1.8mV/50k Ω
Tuner, AUX, Play : 100mV/100k Ω
Total Harmonic Distortion Factor (1 v, 1 khz) Not more than 0.03%
RIAA deviation (30 Hz to 15 kHz) Within ± 0.5 dB
Maximum Allowable Input (1kHz/10kHz) MM:210mV/980mV
MC:9mV/41.5mV
S/N (IHF A network) Phono1, Phono2 MM : 75 dB or more
Phono2 MC : 55 dB or more
Tone Control (2 db Step Type) Bass : ± 10 dB (100 Hz)
Treble : ± 10 dB (10 kHz)
<General>
External dimensions Width 437x Height 136x Depth 355 mm
Weight 11.5kg