Peavey 158

SPECIFICATIONS
POWER AMP SECTION
Pre Gain & Post Gain @ 10
Reverb @ 0
Rated Power & Load:
15 W RMS into 4 ohms
Nominal Levels are with Normal
Gain @ 5
Power @ Clipping: (Typically)
(5% THD, 1 kHz, 120 V AC line)
15 W RMS into 4 ohms
Minimum Levels are with Normal
Gain @ 10
Total Harmonic Distortion:
Less than OS%, 100 mW to IO W
RMS, 60 Hz to 10 kHz, 4 ohms
(typically below 0.2%)
Preamp Input:
(Normal channel)
Impedance: High Z, 1 M ohm
Nominal Input Level: -6 dBV,
500 mV RMS
Minimum Input Level: -23 dBV,
70 mV RMS
Power Consumption:
Maximum Input Level: 0 dBV,
40 W, 50/60 Hz, 120 V AC
I VRMS
PREAMP SECTION
The following specs are measured
@ 2 kHz with the controls preset
as follows:
Channel Select Normal (Out)
Low&High@ 10
CD/Tape Input:
Input Impedance: 100 K ohms
Nominal Input Level: .5 V RMS,
-6 dBV
(Stereo jack designed for use with
stereo headphone outputs on CD/tape
players)
Mid @ 0
Headphone Output:
Load Impedance: 4 ohms
or greater
Nominal Power Output: 20 mW into
4 ohms
(Stereo jack, monaural signal,
disconnects internal speaker when
phone plug is inserted)
System Hum & Noise
@ Nominal Input Level:
(20 Hz to 20 kHz unweighted)
62 dB below rated power
Equalization:
Special low, mid, & high passive
type EQ
BLOCK DIAGRAM
INPUT
LEAD
SWITCH
LOGIC
PRE
HIGH GAIN
AMP
%
PRE GAIN
POST
I
,oe-
4 OHM
SPEAKER
LO MID HI
:::.
PWR
AMP
TONE
CD/TAPE
INPUT
1
CLEAN
HEADPHONE
This block diagram shows signal flow within the unit. In order to thoroughly
understand the unit’s functions, please study the block diagram carefully.
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