QUAD 405-2 + QUAD 44

Second-hand, both items have some scratches (see pictures). Without their original package.
Preamplifier + power amplifier Quad


QUAD 44 5-input preamplifier
Specifiche tecniche
Frequency response: 30Hz to 20kHz
Total harmonic distortion: 0.05%
Input sensitivity: 3mV (MM), 100mV (line)
Signal to noise ratio: 72dB (MM), 86dB (line)
Output: 100mV (line), 0.5V (Pre out)
Dimensions: 321 x 103 x 207mm
Weight: 4kg


QUAD 405-2 Power amplifier
Form: Stereo power amplifier
* It is a build-out value at the time of driving both channels simultaneously.
An output and a distortion (An 8-ohm load intensity, sine-wave input):
It is 0.01% or less at the time of 100Hz and 100W output.
It is 0.01% or less at the time of 1kHz and 100W output.
It is 0.01% or less at the time of 10kHz and 100W output.
Output internal impedance: It is 3.3 microhenries to 0.03 Ω and a single row.
Offset voltage: 7mV or less
Frequency characteristic (1kHz criteria):
- Low-pass: It is -1dB at 20Hz.
- High region: It is -3dB at -0.1dB and 50kHz in 20Hz.
Input sensitivity: 0.5V (at the time of 8-ohm load-intensity and 100W output)
Input impedance: 20kohm//220pF
Slew rate: 0.1v/microsecond
The maximum input limit: If an input signal is to +20dB, it returns in an instant.
Crosstalk (at the time of the input load intensity of 1kohm): 80dB (100Hz), 70dB (1kHz), 60dB (10kHz)
SN ratio: - 96dB (at time of A correction)-93dB (with no correction)
Power-source input: 100-130V, 200-250V, 50 to 60 Hz
Dimensions: Width 340.5x height 115x depth of 195mm
Weight: 9kg