II Classic vs Icon Audio Stereo 845PP
The Stereo 845PP's power @ 8ω is 40W against the II Classic's 25W, its signal-to-noise 93 dB against 90 dB, its damping factor 14 against 11.75, and its thd 0.150% against 0.600%.
AI-generated product photo — not official manufacturer imagery.
AmplifiersIntegrated AmplifiersTube AmplifiersPhono Pre-Amps
Estimated price (community-sourced)
$2,200
Around — community and catalog average, updates slowly
About the II Classic
The Quad II Classic is a two-channel, pure Class A valve integrated amplifier rated at 25 watts per channel into 8 ohms. Its valve complement comprises four KT66 output valves, four 12AX7 valves, and two 6922EH valves. Connectivity includes three line-level inputs, a tape monitor/loop, and one selectable MM/MC phono input. Published specifications include input sensitivities of 275 mV for line-level, 2 mV for MM, and 200 µV for MC, a frequency response of 20 Hz–20 kHz, and total harmonic distortion below 0.6% at 15 W per channel and 700 Hz.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 25W @ 8Ω
- Amplifier Class
- A
- Damping Factor
- 11.75
- Input Sensitivity
- 0.3V RMS
Analog Output
Analog signal output specifications
- THD
- 0.600%
- SNR
- 90 dB
- Output Impedance
- 8Ω
Phono Preamplifier
Phono stage specifications
- Adjustable Loading
- Yes
- Loading Options
- 47000Ω, 1000Ω
Connectivity
Input and output connections
- Analog Inputs
- RCA
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 310 × 200 × 380 mm (W × H × D)
- Weight
- 19.1 kg (42 lbs)
- Available Colors
- Champagne Gold, Lancaster Grey
Key Specifications
Power: 25W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions