M500 monoblock tube power amplifier
M500__300B Class A single-ended mono block power amplifiers

M500 is beautifully simple, designed to really display the advantage of a directly heated triode 300B in single-ended class A, no global negative feedback configuration. Using the same power supply like the M500S, it gives true musicality especially when connected to horn and single driver full range speakers. The self bias design enable 300B tube rolling to be an easy task for everyone. The 300B tube used is the same as the M500S. T1 is a perfect companion with the M500. However the QM-3 is highly recommended too due to its simple design and the relative lower cost of ownership.

SPECIFICATION:

CONTROL FUNCTIONS: Power On/Off
POWER OUTPUT: 9 watt, RMS 1kHz
TOTAL HARMONIC DISTORTION: less than 1%(5watt, 1kHz)
FREQUENCY RESPONSE: (-3dB points at 5 watt) 17Hz-47kHz
INPUT SENSITIVITY: 2V
INPUT IMPEDANCE: 100k ohms
OUTPUT: 4, 8 ohms. User selectable.
SIGNAL/NOISE: 90dB
CONSUMPTION: 50watt
INPUT INTERFACES: 1 group (RCA)
OVERALL NEGATIVE FEEDBACK: None
VACUUM TUBE: 5AR4/ 5Z3PA x 2, 6SL7 x 2, 300B x 2
DIMENSIONS: 412(L) x 220(W) x 166(H) mm
WEIGHT: 17kgx2