Transtube, 258 efx specifications, 258 efx block diagram – Peavey 258 EFX User Manual

Page 11

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11

LEAD

CLEAN

PRE

VINTAGE

MODERN

HIGH GAIN AMP

INPUT

POST

LOW MID HIGH

VOLUME

CD/TAPE

8 OHM SPEAKER

POWER

AMP

FOOTSWITCH

DIGITAL
EFFECTS

HEADPHONE

SWITCH

POWER AMP SECTION:

Rated Power and Load:

25 W RMS into 8 Ohms

Power @ Clipping (Typically):

(5% THD, 1 kHz, 120 V AC
line)
25 W RMS into 8 Ohms

Total Harmonic Distortion:

Less than 0.5%m 100 mW to
10 W RMS, 60 Hz to 10 kHz,
8 W (typically below 0.2%)

Power Consumption:

50 W, 50/60 Hz, 120 V AC

PREAMP SECTION:

The following specs are measured
@ 2 kHz with the controls preset as
follows:

Channel Select Normal (Out)
Low and High @ 10
Mid @ 0

Pre Gain and Post Gain @ 10
Reverb @ 0
Nominal Levels are with

Nominal Gain @ 5

Minimum Levels are with

Minimum Gain @ 10

All effects “OFF”

Preamp Input (Normal
Channel):

Impedance: High Z, 1 M Ohm
Nominal Input Level: -6 dBV,

70 mV RMS

Maximum Input Level: 0 dBV,

1 V RMS

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)

Headphone Output:

Load Impedance:

8 Ohms or greater

Nominal Power Output:

20 mW into 8 Ohms
(Stereo jacks, monaural
signal disconnects internal
speaker when phone plug is
inserted.)

System Hum and Noise @
Nominal Input Level:

(20 Hz to 20 kHz unweighted)
62 dB below rated power

Equalization:

Special low, mid, and high
passive type EQ

TRANSTUBE

®

258 EFX SPECIFICATIONS

This block diagram shows signal flow within the unit. In order to thoroughly understand

the unit’s functions, please study the block diagram carefully.

TRANSTUBE

®

258 EFX BLOCK DIAGRAM

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