Audio Database

SA-52
Commentary

MFB stereo integrated amplifier with FM multi-circuit.

MFB system is adopted.

6BQ5 is used for the output tube.

Full DC ignition is adopted for the preamplifier section.

It supports 3 bands.

Ferrite antenna is built-in.

Equipped with AFC, loudness control, low / high-cut filter, mode switch and stereo eye.

Model Rating
Type Stereo integrated amplifier
Receiving frequency FM : 76 MHz to 90 MHz
AM (MW) : 525 kHz to 1605 kHz
SW : 3.9 MHz to 12 MHz
Total output 40W(20W+20W)
Input terminal MAG, XTAL, AUX
Output terminal 4 Ω, 8 Ω, 16 Ω, 32 Ω
Socket for SB-105
Recording terminal
Semiconductor used
Vacuum tube : 6BQ8x1
6BA6x1
6BE6x1
6AU6x2
6BA6x1
12AX7x4
12AT7x1
12AU7x3
6BQ5x4
Diode : OA-70x2
OA-79x5
SD-1Ax4
SC-15x1
Pwer 100 VAC, 50Hz/60Hz
External dimensions Width 470x Height 161x Depth 328 mm
Weight 15kg