Audio Database

Image of Integra R-255
Commentary

This is a receiver that combines a tuner and premain that can be used as independent components.

Equipped with a microphone terminal.

Model Rating
Type Stereo receiver
Power Amplifier Unit
Circuit system D&D directly connected to all stages
Rated Output (8 Ω, 1 kHz) 20W+20W
23W/23W
Dynamic Power 4 Ω : 80W
8 Ω : 52W
Total harmonic distortion factor (1 kHz at rated output) Not more than 0.1%
Power Band With (IHF, -3dB, THD 0.2%) 20 Hz to 30 kHz
Signal-to-noise ratio (IHF A network) 100dB
Damping Factor (DC ~ 20 kHz, 8 Ω) 40
Load impedance 4 Ω ~ 16 Ω
Preamplifier Section
Input Sensitivity / Impedance Phono Gain : 2.5mV/50k Ω
AUX : 200mV/50k Ω
RIAA deviation (30 Hz to 15 kHz) Within ± 0.5 dB
Maximum Allowable Input (1kHz/10kHz) 100mV/380mV
Tone control Bass:+8 -10dB(100Hz)
Treble:+8 -10dB(10kHz)
Input terminal Phono, AUX1, 2, Tape, MIC
Tuner Section
Receiving frequency FM : 76 MHz to 90 MHz
AM : 530 kHz to 1605 kHz
Sensitivity (SN ratio 30 dB) FM : 1.8 μ V
AM : 150 μ V/m
Image ratio FM:82dB(83MHz)
AM:45dB(1MHz)
IF interference ratio FM:90dB(83MHz)
AM:40dB(1MHz)
Signal-to-noise ratio (IHF) FM:68dB
Two signal selectivity FM : 70 dB or more
AM suppression ratio FM : 52 dB or more
Capture ratio 1.2 dB or less
Distortion factor FM-stereo : 0.5% or less (400 Hz)
FM-Stereo Separation 43dB(400Hz)
Frequency characteristic FM : 20 Hz to 15 kHz (± 1.5 dB)
<General>
External dimensions Width 471x Height 138x Depth 370 mm
Weight 11kg