ET7-II vs ET6
The ET6's signal-to-noise is 98 dB against the ET7-II's 100 dB. Both share thd (0.150%), output voltage (20.0V RMS), and output impedance (100Ω).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPre-AmplifiersTube Amplifiers
Estimated price (community-sourced)
$4,200
Around — community and catalog average, updates slowly
About the ET7-II
The Conrad-Johnson ET7-II, also known as the ET7-S2, is a single-ended tube line-stage preamplifier using one 6922 dual triode for voltage gain and a high-current MOSFET buffer for a low 100-ohm output impedance. Its design incorporates circuit and power-supply developments from the GAT Series 2, a separately regulated DC heater supply, precision relay-switched volume control with 100 approximately 0.7-dB steps, and premium Teflon and polypropylene capacitors. Connectivity includes five single-ended RCA line inputs, two RCA processor loops, two variable stereo outputs, and processor-loop outputs; one processor loop supports unity-gain home-theater pass-through. The unit measures 19 inches wide by 15.375 inches deep by 4.375 inches high and weighs 19 pounds.
Specifications
Power Specifications
Amplification power output and characteristics
- Amplifier Class
- tube
- Max Input Voltage
- 20.0V RMS
Analog Output
Analog signal output specifications
- THD
- 0.150%
- SNR
- 100 dB
- Output Voltage
- 20.0V RMS
- Output Impedance
- 100Ω
Connectivity
Input and output connections
- Analog Inputs
- 5 single-ended line inputs, 2 external processor loops
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 482.6 × 111.13 × 390.5 mm (W × H × D)
- Weight
- 8.618 kg (19 lbs)
Key Specifications
Frequency: 2-100000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions