Ampeg Classic Quick Start Guide

PB
1. Input: Connect a passive or active instrument to this
Input jack.
2. Output: Feeds the signal to an external power amplifier,
mixer, or recording setup.
3. On/Off Switch: Turns the pedal on/off. The LED
indicates on/off status.
4. Volume: Adjusts the overall output level.
5. EQ Knobs: Boost or cut the levels at certain frequencies
to enhance the sound.
6. Ultra Hi/Ultra Lo Switches: Boost high or low
frequencies.
7. Power: Input socket for optional AC/DC power supply.
8. Battery (not included): Provides 9V of power
(accessible by removing the four screws on the bottom
panel).
9. Pad: Reduces input level by 15 dB.
Front, Rear, Side and Bottom Panel Descriptions
1. Read and understand the included “Important Safety
Instructions.”
2. Make all initial connections with the power switches OFF
on all equipment. Make sure the Master Volume, Level and
Gain controls are all the way down.
3. Insert 9V battery or connect optional AC/DC power
supply. The Classic Analog Bass Preamp may accept the
appropriate voltage as indicated on the rear panel.
4. Connect an instrument to the Input jack with a 1/4"
(shielded) instrument cable.
5. While playing the instrument, adjust the Volume knob to
the preferred level.
6. Adjust the EQ knobs to taste.
Getting Started

Ampeg Classic Specifications

Audio Specifications

signal to noise ratio	75 dB
maximum gain	+18 dB
bass tone control	+7/–20 dB @ 40 Hz
mid tone control	+5/–11 dB @ 500 Hz
treble tone control	+10/–10 dB @ 4 kHz
ultra hi	+7 dB @ 8 kHz
ultra lo	+2 dB @ 40 Hz / –10 dB @ 500 Hz

Impedance

input impedance	1 M @ Normal, 83 k w/–15 dB Pad
output impedance	120

Power Requirements

internal power	9V Battery
external power	9VDC, ≥20 mA, center negative

Weight and Dimensions

size (H x W x D)	2.2 in x 2.6 in x 4.5 in
size (H x W x D) metric	56 mm x 66 mm x 114 mm
weight	0.6 lb / 0.3 kg