Description

Classic M7 preamplifier was released in the late 1980s. It gained fame along with the legendary power amplifier ONGAKU.
While maintaining the emotional sound impression of this preamplifier, it was polished with updated crafts and technologies. Base on a well-thought-out circuit and high-quality parts that were inspected further by our eyes and hands, performance is improved and matching with modern systems is also improved.
On top of specification, wide and stable sound stage, lively emotions, and low noise level are realized.

Specifications
Product Stereo preamplifier
Product M7 Heritage
Model M7H
Input / Impedance Phono RCA 2pairs, Unbalanced / 47kΩ
Line RCA 3pairs, XLR 1pair, Unbalanced / 50kΩ
Output RCA x2, XLR x1 (unbalanced, over 20 kΩ load)
RIAA Declination ±0.3dB (30Hz-20kHz, Excluding LCF)
Frequency Response 8Hz ～ 280kHz (+0dB, -3dB / with 100kΩ load, Unbalanced)
Distortion (THD) 0.07% (1kHz, 1V, Line part)
Noise less than 0.15mV(Line),
less than 5mV(Phono)
Gain 25dB (Line in → Line out),
63dB (Phono in → Line out)
Vacuum Tubes ECC803S x2, 6072 x2 (Phono)
6072 x4 (Line)
EZ81 x1 (Rectification)
Power consumption 38W
Dimensions 438mm(W) 160mm(H) 330mm(D)
(excluding protrusions)
Weight 15kg














K