Integrated amplifiers — Audio Research I/70
Description, images, technical data and specifications
Audio Research I/70
Image source — © Audio Research
The output stages of the Audio Research I/70 integrated amplifier are built on four vacuum octane beam tetrodes 6550 and provide a power of 2 × 70 watts. An important practical feature is the presence of an automatic bias system in the amplifier, which ensures the operation of the 6550 lamps at the optimal point without the need for manual adjustment. In addition to stable sound quality, it is also designed to extend the life of the lamps and reduce the need for maintenance.
Specifications
Model name
I/70
Type
Tube Integrated Amplifier
Analog inputs (balanced)
1
Analog inputs (single-ended)
2
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
N/A
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
2 х 70
Output power (4Ω) (W)
N/A
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (%)
N/A
Damping factor
N/A
Dimensions (mm)
N/A
Weight (kg)
N/A
Official link
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