The instrument
The Deca 528 Amplifier, which was launched in 1988, has two channels.
Details
Frequency response: 10, -1.5 dB 10 Hz to 20 kHz, 1 W RMS into 4 ohms
Rated power output: 250 Watts RMS per channel with less than 0.3% Total Harmonic Distortion
Total Harmonic Distortion: Less than 15% @ 250 watts RMS per channel
Hum and Noise: Less than 85 dB below full power (20 Hz to 20 kHz)
Input sensivity: 1.0 V RMS for 200 watts