Johnson 25 User Manual

5
TECHNICAL SPECIFICATIONS
POWER SUPPLY
110/115VAC/50Hz~60Hz
POWER OUTPUT:
20 watts RMS @ 8 ohms
LOAD IMPEDANCE:
8 ohms
INTERNAL SPEAKER SYSTEM:
7.7” diameter
EQ SECTION
Bass Control Range:
+3dB/-219dB@100Hz
Mid Control Range:
+8dB/-5dB@1kHz
Treble Control Range:
+18dB/-7dB@10kHz
DELAY CHARACTERISTICS:
Adjustable Delay Time:
20ms~120ms
SIGNAL TO NOISE RATIO:
S/N
≥
70dB
INPUT:
1/4” Mono Jack
LINE OUTPUT:
1/4” Mono Jack
RETURN:
1/4” Mono Jack
DIMENSIONS:
14”(W) x 14.2”(H) x 7.9”(D)
WEIGHT
(approx.):
16.5 lbs.

Johnson 25 Specifications

General

Input Impedance	1 MΩ
Frequency Response	20Hz - 20kHz
Power Output	25 Watts
Tubes	2x EL84, 3x 12AX7
Channels	2
Output Impedance	4Ω, 8Ω, 16Ω