Audio Database

Image of DA-U450
Commentary

Pre-main amplifier.

Model Rating
Type Pre-main amplifier
Power Amplifier Unit
Output (both channel operation)   
30 Hz to 20 kHz : 26W + 26W (4 Ω)
24W + 24W (8 Ω)
1kHz: 32W + 32W (4 Ω)
25W + 25W (8 Ω)
Harmonic distortion factor 0.08% (at 1W)
Cross modulation distortion factor 0.1% (at 1W)
Power bandwidth 20 Hz to 40 kHz
Damping factor 40 (8 Ω)
Residual noise 1mV
Preamplifier Section
Input Sensitivity / Impedance   
Phono: 2.5mV/50k Ω
Tuner, AUX, Play1, 2 : 150mV/50k Ω
Output Level / Impedance   
Rec1, 2 : 150mV/1k Ω
Frequency characteristic
Phono(RIAA STD): 30 Hz to 20 kHz
Tuner, AUX, Tape1, 2 : 30 Hz to 40 kHz 0 dB -1dB
Tone control Bass : ± 10 dB (100 Hz)
Treble : ± 10 dB (10 kHz)
Filter Low:20Hz(-6dB/oct)
Phono allowed input 150 mv (1 khz, 0.8% distortion)
Input reduced noise Phono:-118dB(V)
Tuner, Play : -100dB (V)
<General>
Pwer AC100V 50Hz/60Hz
Power consumption 95W
External dimensions Width 380x Height 135x Depth 318 mm
Weight 7kg