M-Audio Audio Buddy Dual Mic Preamp User Manual

Features
The Audio Buddy features include:
• 2 independent XLR, fully balanced inputs.
•
2 alternate, independent 1/4” unbalanced, high impedance inputs.
These alternate 1/4” inputs are impedance matched for ideal
performance with typical electric guitars.
•
Separate gain controls for each of the two preamplifiers.
• Individual signal and clipping LEDs for each of the preamplifiers.
• XLR phantom power can be switched on and off for both of the
mic preamps.
• Phantom power on or off LED indicator.
• Dual purpose independent 1/4” outputs which accept either
tip-ring-sleeve plugs for balanced signal or tip-sleeve plug for
unbalanced signal.
• Super-small size: 5.5" x 3.3" x 1.7".
• Very-quiet S/N specification.
• Heavy-duty all metal construction.
Specifications
• Frequency Response: 5 Hz to 50 kHz, +0, -3 dB.
• Mic Gain: 60 dB max.
• Mic Input Impedance: 1 K ohm.
• Guitar Gain: 40 dB max.
• Guitar Input Impedance: 100 K ohms.
• Approximate weight: under 1/2 lb.
• Power supply: 9 VAC; 500 milliamps.
Users Manual
Dual Mic Preamp | Direct Box
Audio Buddy
Introduction
This product complies with European CE requirements.
Thank you for your purchase of the M-Audio AudioBuddy™, mic
preamp and direct box. M-Audio has designed and manufactured
several different audio mixers including MiniMixer, MicroMixer 18,
MultiMixer 6, MultiMixer 10 and miXim 10. All of these mixers have
two things in common: 1.) they are exceedingly quiet -- quieter than
99% of all mixers on the market and 2.) they are uniquely configured to
meet the specific needs of the MIDI and multimedia musician.
The Audio Buddy, once again, fits these two criteria. First, it is a very
quiet mic preamp. This is because the unit’s simple and efficient
design and ultra compact layout eliminates much of the noise. The
unit also has a higher than usual voltage “rail” across its internal op-
amps. This means that you get more “punch” and much more dynamic
audio output.
Secondly
, the Audio Buddy (when coupled with its ultra quiet
performance) is the perfect audio “gateway” for recording the two
most significant, non-line level instruments in the studio: microphones
and electric guit
ars.
The Audio Buddy has two completely independent preamplifier
sections. Each of these sections has: 1.) a balanced XLR input on the
bac
k of the unit, 2.) a high impedance 1/4” unbalanced input (T
S) on
the front of the unit, 3.) signal (present) and clipping LEDs, 4.) a gain
control and 5.) a 1/4” dual purpose output on the bac
k of the unit that
provides either an unbalanced out (when a mono plug is used) or a
balanced out (when a stereo plug is used).
M
L07-047B0
AudioBuddyUG_Aug07.qxd 5/19/08 11:17 AM Page 1

M-Audio Audio Buddy Dual Mic Preamp Specifications

General

THD	< 0.005%
THD+N	< 0.01%
Type	Dual Microphone Preamp
Inputs	2 XLR
Outputs	2 x 1/4" TRS
Phantom Power	+48V
Gain Range	0 to +60 dB
Power	12V DC
Signal to Noise Ratio	>100dB (A-weighted)

Summary

Introduction to AudioBuddy

AudioBuddy Product Overview

Details the AudioBuddy's quiet performance, dynamic output, and role as an audio gateway for musicians.

Dual Preamplifier Section Design

Explains the two independent preamplifier sections and their components, including inputs, LEDs, and gain controls.

Panel Layout Identification

Front Panel Component Diagram

Illustrates the front panel with numbered controls and inputs for identification, aiding in understanding features.

Rear Panel Connection Diagram

Illustrates the rear panel with numbered outputs and connections, crucial for setup and operation.

Front Panel Controls and Indicators

High Impedance Inputs and Status LEDs

Describes the high impedance inputs, signal presence, and clipping LEDs for each preamp channel.

Gain Controls and Phantom Power LED

Covers the gain controls for adjusting output levels and the front panel phantom power indicator LED.

Front and Rear Panel Connections

Power and Output Connections

Details the main power indicators, power switch, and the dual-purpose 1/4" outputs on the front and rear.

Rear Panel Inputs and Phantom Power Switch

Explains the power input jack, phantom power switch, and balanced XLR inputs located on the rear panel.

Features and Technical Specifications

Key Product Features Summary

Lists the main features including independent inputs, dual-purpose outputs, gain controls, and construction.

Detailed Technical Specifications

Provides essential technical data like frequency response, gain ranges, input impedance, and power requirements.

Warranty and Safety Information

Warranty Terms and Registration Process

Outlines M-Audio's warranty policy, terms, and the benefits of registering the product for coverage.

Safety and Compliance Warnings

Includes important warnings regarding chemical content and compliance with FCC standards.