Audio Database

Model 1150mkII

Pre-main amplifier which is an improved version of Model1150.

A low-row-cage type coupling capacitor is used in the pre-amplifier section to pursue linearity.

The control stage is equipped with a variety of functions to cope with the diversification of program sources and environmental conditions.

The power supply section uses a 56,000 μ F large-capacity filter condenser.

We had two wood cabinets, Walnut and Mahogany, and an adapter for rack mounting as an option sold separately.

Model Rating
Type Pre-main amplifier
Rated Output (20 Hz to 20 kHz, Both Channel Drive) 80W + 80W (8 Ω)
Frequency characteristic 20 Hz to 20 kHz ± 1.0 dB
Total harmonic distortion factor 0.1% or Less (20 Hz to 20 kHz)
0.05% (Preamplifier Part)
Cross modulation distortion factor 0.15% or Less (20 Hz to 20 kHz)
0.05% (Preamplifier Part)
Power band wiz 7 Hz to 45 kHz
Damping factor 45 or More (8 Ω)
Gain Phono-Pre out:58dB
Phono-Rec out:40dB
Line-Pre out:18dB
Input equivalent noise Phono : 1.0 μ V
Dynamic range Phono:106dB
Input Sensitivity / Impedance Phono : 1.8mV/47k Ω
Line : 180mV/60k Ω
Output impedance Pre out : 470 Ω
Tone control Bass : + / - 10 dB
Mid : ± 6 dB
Treble : + / - 10 dB
Filter High:9kHz
Pwer 100 VAC, 50Hz/60Hz
Power consumption 250W
External dimensions Width 390x Height 146x Depth 315 mm (Width and height are panel size)
Weight 15kg
Sold Separately Mahogany Cabinet WC-3N (¥ 11,000)
Walnut Cabinet WC-3 (¥ 5,900)
Rack Mount Adapter RA-2 (¥ 5,900)