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15
1 x 6111 twin triode
‹0.2%
0.02% @ 1W
5Hz–50kHz (+0dB/-0.5dB)
Better than -80dB
15dB
50k ohms
5 x Line level
2 x Buffered tape loops
Model
QC-twentyfour
4 x 6111
‹0.08% (A-weighted)
20Hz–20kHz (+0dB/-0.5dB)
Better than 60dB
47Ω
10Ω
1.3mV (MM)/130uV (MC)
2.6mV (MM)/260uV (MC)
5.2mV (MM)/520uV (MC)
1.0
Selectable MC/MM cartridge
1 x fixed line level
1 x variable line level
15 VA maximum
QC-twentyfour P
Valve Complement
THD @ 1V
RMS
Frequency Response
Hum and Noise
Line Stage Gain
Recommended Min. Load
Inputs
Valve Complement
THD
Frequency Response
Hum and Noise
Input Impedance
Moving magnet
Moving coil
Stage Gain
High sensitivity
Medium sensitivity
Low sensitivity
Nominal output level
(ref 5.2mV, MM, Low)
Inputs
Outputs
Power consumption
specifications
40W RMS
0.3% @ 40W
0.03% @ 1W
Better than -80dB
10Hz–30kHz(+0dB/-0.5dB)
20 @ 700Hz
180W maximum
4 ohm and 8 ohm
2 x 6SH7 Input
2 x KT88 Output
1 x 5U44G Rectifier
1V
RMS
15W RMS
0.3% @ 12W
Better than -90dB
10Hz–20kHz(+0.2dB)
11.75 @ 700Hz
90Va maximum
8 ohm
2 x EF86 input
2 x KT66 Output
1 x GZ34 Rectifier
1.4V
RMS
Model
II-forty II-classic*
Power Output
THD @ 700Hz
Residual hum & noise
Frequency Response
Damping Factor
Power Consumption
Loudspeaker Taps
Valves
Sensitivity
*The Quad II Classic power amplifiers are supplied in matched pairs.