AudioBuddyUG_Aug07.qxd

5/19/08

11:17 AM

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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.

Audio Buddy

Dual Mic Preamp | Direct Box

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

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 units 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 opamps. 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 guitars. The Audio Buddy has two completely independent preamplifier sections. Each of these sections has: 1.) a balanced XLR input on the back of the unit, 2.) a high impedance 1/4 unbalanced input (TS) 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 back 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). ML07-047B0

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IMPORTANT: Whenever one of the front panel high impedance inputs is used, the associated back panel XLR is disabled. The Audio Buddy also has built in phantom power which can be switched on or off for both channels. When the rear panel phantom power switch is in, phantom power to both channels is turned on and the front Phan(tom) power LED will light. IMPORTANT: Since the phantom power switch turns phantom power on or off for both channels, there is no way to turn phantom power on for one channel and off for the other channel. If you are using the high impedance inputs the phantom power switch has no effect.
8. Main Power Indicator LED: When power is properly applied to the Audio Buddy and when the front power switch is in, the main power LED will light indicating that the unit is turned on. 9. Power Switch: When power is properly applied to the Audio Buddy and this switch is pressed in, the Audio Buddy is turned on. When this is done the Main Power LED will light.
10. 9-VAC Power Jack. The rear panel power jack of the Audio Buddy accepts a 9-Volt AC, 500 milliamp power adapter. IMPORTANT: Audio Buddy will not function unless it receives power at this jack and the front panel power switch is pushed in. 11, 12. Outputs 2 and 1: These are the main outputs for the dual Audio Buddy preamps. They provide unbalanced outputs if a tip-sleeve 1/4 plug is used. Or, they provide balanced outputs if a tip-ring-sleeve (stereo) 1/4 plug is used. The level of these outputs are independently controlled by the front panel gain controls. Remember, Preamp 1 and Preamp 2 are completely independent. 13. Phantom Power Switch: When in, phantom power is turned on for both XLR In 1 and In 2. When in, the front panel phantom power indicator LED will light showing that phantom power is on. 14, 15. XLR-In 1&2: (#15 is 1; #14 is 2) Balanced XLR inputs for preamps 1 and 2. When the rear phantom power switch is in, phantom power is turned on to both jacks. IMPORTANT: If anything is plugged into either of the frontpanel high-impedance input jacks, the corresponding XLR input will be disabled.

Front and Real Panels

When reading the following description of front and rear panel harware features, it may be helpful to refer to the adjacent diagram.
1. High Impedance Input 1: High impedance (100K) input for Preamp 1. This input is optimized for guitars or high impedance microphones where you dont want to load down the source. When this input is being used XLR input 1 is disabled. IMPORTANT: Because the high impedance input jack is switched, the XLR input cannot be used whenever something is plugged into the high impedance input. 2. Sig(nal) and Clip LED Preamp 1: Whenever a signal is applied to either the high impedance In or the XLR In of Preamp 1, these LEDs will show signal present and clipping levels. If a signal is applied in this manner and the clipping LED lights too much adjust the Preamp 1 gain control accordingly. 3. Gain Control for Preamp 1: Adjusts the Output 1 volume level for Preamp 1. If a signal is present at either the high impedance in or the XLR in of Preamp 1 and the Clipping LED stays lit, turn down this gain control and adjust accordingly. 4, 5, 6. Same as 1, 2 and 3 for Preamp 2. Remember, Preamp 1 and Preamp 2 are completely independent. 7. Phantom Power Indicator LED: When the phantom power switch on the back of the unit is in, this LED will light indicating that phantom power has been turned on for both XLR in 1 and XLR 2. IMPORTANT: Phantom power is turned on for both preamps, i.e. there is no independent phantom power control for each of the channels.
Warranty and Registration

Warranty Terms

M-Audio warrants products to be free from defects in materials and workmanship, under normal use and provided that the product is owned by the original, registered user. Visit www.m-audio.com/warranty for terms and limitations applying to your specific product.

Warranty Registration

Immediately registering your new M-Audio product entitles you to full warranty coverage and helps M-Audio develop and manufacture the finest quality products available. Register online at www.maudio.com/register to receive FREE product updates and for the chance to win M-Audio giveaways. 2008 Avid Technology, Inc. All rights reserved. Product features, specifications, system requirements and availability are subject to change without notice. Avid, M-Audio and Audio Buddy are either trademarks or registered trademarks of Avid Technology, Inc. All other trademarks contained herein are the property of their respective owners. WARNING: This product contains chemicals, including lead, known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling.

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 units 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 opamps. 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 guitars. The Audio Buddy has two completely independent preamplifier sections. Each of these sections has: 1.) a balanced XLR input on the back of the unit, 2.) a high impedance 1/4 unbalanced input (TS) 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 back 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).
080519_AudioBuddy_UG_EN01 ML07-047B0

/////////////Keyboard Comparison Chart

Keyboard Key Features

Keys Aftertouch yes, assignable Knobs Sliders Buttons 15 (9 function, 6 reassignable transport) Display custom LCD, backlit Pads Octave +/Transpose +/Pitch wheel Mod wheel Pedal inputs Audio I/O Built-in sounds Memory Bus-powered Enigma compatible MIDI I/O Weight

Axiom 25

25 semi-weighted, velocity-sensitive 8 assignable 0

1 assignable

2 assignable

20 slots

yes (or 12V)

6 lbs.

Axiom 49
49 semi-weighted, velocity-sensitive yes, assignable 8 assignable 9 assignable 30 (15 function, 15 assignable) custom LCD, backlit 8 yes yes 1 assignable 1 assignable 2 assignable n/a n/a 20 slots yes (or 12V) yes 1xlbs.

Axiom 61

61 semi-weighted, velocity-sensitive yes, assignable 8 assignable 9 assignable 30 (15 function, 15 assignable) custom LCD, backlit 8 yes yes 1 assignable 1 assignable 2 assignable n/a n/a 20 slots yes (or 12V) yes 1xlbs.
KeyRig 25 KeyRig 49 Keystation 61es
25 half-action, velocitysensitive 49 synth-action, velocity-sensitive

8 assignable

13 (8 assignable)

3-digit LED display

1 (button) assignable

5 slots

yes (or 9V)

1 MIDI out

3 lbs.

3 (none assignable)

6.6 lbs.
61 semi-weighted, velocity-sensitive

3 (2 assignable)

11 lbs.

Keystation 88es

88 semi-weighted, velocity-sensitive no assignable 3 (2 assignable) none 0 yes no assignable 1 n/a n/a no yes (or 9V) no 1 MIDI out 22 lbs.

Keystation Pro 88

88 hammer-action, velocity-sensitive no 24 assignable 9 assignable 31 (9 function, 22 assignable) custom LCD, backlit 0 yes yes 1 assignable 1 assignable 3 assignable n/a n/a 10 slots yes (or 9V) yes 1xlbs.

KeyStudio 49i

49 velocity-sensitive no 6 function none 0 yes yes assignable x 2 with 1/4 outs
1 (20-note polyphony) + 127 GM via Mac/PC

7.5 lbs.

Oxygen 8 v2
25 velocity-sensitive no 8 assignable 0
11 (including 6 reassignable transport) 22 (15 assignable including 6 transport)

10 slots

4.2 lbs.

Oxygen 49

49 velocity-sensitive no 8 assignable 9 assignable

Oxygen 61

61 velocity-sensitive no 8 assignable 9 assignable
22 (15 assignable including 6 transport)

9 lbs.

ProKeys 88
88 hammer-action, velocity-sensitive no 2 EQ knobs (none assignable) 3 volume sliders (none assignable) 32 (14 programmable) 3-digit LED display 0 yes yes 3 1/4 stereo and headphone out 14 (126-note polyphony) n/a no no 1xlbs.

ProKeys 88sx

88 semi-weighted, velocity-sensitive no assignable 14 (none assignable) none 0 yes yes 3 (1 assignable) 1/4 stereo and 2 headphone outs 7 (126-note polyphony) n/a no no 1 MIDI out 17 lbs.

ProKeys Sono 61

61 semi-weighted, velocity-sensitive no 4 (1 assignable) 1 volume slider (not assignable) 12 (2 assignable) none 0 yes yes assignable x 2 with 1/4 outs
5 premium (40note polyphony); GM compatible with 128+ sounds

ProKeys Sono 88

88 semi-weighted, velocity-sensitive no 4 (1 assignable) 1 volume slider (not assignable) 14 (2 assignable) none 0 yes yes assignable x 2 with 1/4 outs
7 premium (40note polyphony); GM compatible with 128+ sounds

17 lbs.