EBS MicroBassII User Manual

SPECIFICATIONS
November 2003
EBS Professional Bass Equipment
Nominal Input Level - 8 dBv
Input Impedance 10 Mohms (Ch A), 1 Mohms (Ch B)
Output Impedance 10 kohms
Frequency Response +0 / -3 dB 20 – 20 kHz
Tone Controls Bass +/- 15 dB @ 100 Hz
Treble +/- 15 dB @ 10 kHz shelving
Bright + 12 dB @ 10 kHz,15dB gain
Midrange +/- 12 dB
Frequency Range 50 –2.000 Hz
Q 0.80
Edge +/- 12 dB @ 7 kHz
Boost Control Gain 0 – 30 dB
Drive Control Gain 0 – 35 dB
Gain Type Class A Tube Emulator
Low End Compensation < 250 Hz
Balanced Output Impedance 500 ohms balanced
Nominal Level -10 dBv
Frequency Response +0/-3 dB 20 Hz – 30 kHz
XLR Connections 1-GND, 2-Hot, 3-Cold
Options GND Lift, Speaker Simulator
Phones Impedance 3 – 200 ohms recommended
Power Requirements 9 V DC Regulated, 10 mA
15 mA with Phones
Powering Modes DC Power Supply, Battery,
48V Phantom power,
EBS Phantom Power System
Dimensions 6.0” (153 mm) Width,
4.3” (110 mm) Height,
2.3” (58 mm) Depth
Weight 875 g (1.95 lb.)
Specifications are subject to change without notice!
EBS MicroBassII
MADE IN SWEDEN BY EBS SWEDEN AB
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RAMNÄSBACKEN 12, SE-171 66 SOLNA, SWEDEN
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+46-8-735 00 10, F
AX : +46-8-735 00 15
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AIL: ebs.sweden@bass.se
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EB: http://www.ebs.bass.se
USERS MANUAL
BLACK LABEL SERIES
EBS MICROBASSII

EBS MicroBassII Specifications

General

Type	Bass Preamp
Inputs	1 x 1/4" (instrument)
Outputs	1 x Line Output (1/4" jack), 1 x Balanced Output (XLR)
EQ Bands	3-band EQ (Bass, Mid, Treble)
Input Impedance	1 MΩ
Output Impedance	100 ohms
Drive Gain	Adjustable via Drive control
Power Supply	9V DC
Power Requirements	9V DC
Battery Type	9V
Battery Life	Not applicable
Construction	Metal

Summary

Specifications

Getting Started

The Direct Injection Box Mode

Connect instrument to input A and mixer from Balanced XLR Output for flat frequency response.

Powering Modes

Details on powering options: DC Adapter, EBS Phantom Power, 48V Phantom, and 9V Battery.

Battery Replacement

Instructions for replacing the internal battery of the EBS MicroBassII.

Using One Instrument Mode

Setup for using a single instrument connected to input A for amplification.

Outputs and Indicators

Explanation of Balanced Output, Volume, Headphones, and LED indicators for status.

Using Two Instruments Mode

Connecting and switching between two instruments using inputs A and B.

Rehearsal Preamp Mode

Configuring the MicroBassII for headphone practice with external audio sources.

Controls and Functions

Common Features

Details on Tube Simulation, Effects Loop, and FX Mix for sound shaping.

Control Switches

Explanation of A/B and Mute footswitches for changing states and muting.

Drive Mode Switch

How the Drive knob and switch affect gain and tube emulation for overdrive.

Middle and Edge Filters

Description of Middle and Edge filters for midrange and treble control.

Input Boost and Filters

Input A characteristics and Boost control for signal strength.

Bright Enhanced Filter

High-pass filter for treble and enhanced mode affecting midrange.

Technical Reference

Block Diagram

Visual representation of the EBS MicroBassII signal path and components.

Technical Specifications

Detailed technical specifications including impedance, frequency response, and dimensions.