Raven Labs MDB-1
Two nine volt batteries are used in a +/- arrangement eliminating the need for multiple coupling capacitors than can "color" the sound. Battery life in field tests has been around 100 hours. This unique design will function down to +/- 3 volts.
Over 8 months has gone into the development stages with prototype units being used in a variety of applications by notable musicians such as Jack Casady, Laurence Juber (guitarist with Paul McCartney and Wings), Ric Fierabracci (bassist with Yanni), Mark Browne (Melissa Ethridge, Paula Cole) and L.A. session ace Neil Stubenhaus. All have come back with glowing reports!
Volume control and in/out switch for each channel.
Auxiliary Blend control that allows the user to mix an effect (or another MDB-1) with the original signal. The blend circuit is on a "side chain", helping to maintain signal integrity and clarity.
Mute button with red LED indicator. Kills the signal going to the XLR and line out on the back panel. The Auxiliary send jack in not affected. This allows the user to tune up-with a tuner connected-without sending the signal to a mixing board or amplifier.
Power on/off switch with accompanying green LED.
Auxiliary Send. Use this feature to send a signal to an effect or tuner. By using a "Y" cord, you can send a signal to more than one input.
Auxiliary In. Use this feature as a "return" jack from an effect, or mix in any mono external source via the Auxiliary Blend control on the front panel.
Balanced XLR jack
Ground lift for the balanced XLR connector.
Dual 9 volt battery holder. The "drawers" pull out for easy battery insertion or replacement.
A/C Adaptor (Optional - not pictured)
Mixer. Since each channel is completely independent, you can mix and blend up to 3 sources. Select the source desired one at a time or all three together.
Direct Box. The balanced XLR out is extremely accurate and very quiet. Perfect for professional and home recording.
Preamp. Great for passive or low level instruments.
Recording. Direct to tape if desired.
A/B box. For low level sources (i.e. keyboards, guitars, preamps).
Blending. Blend instruments with stereo or dual outputs to mono, such as acoustics with piezo and mic outputs or Alembic stereo basses.
Level Equalization. Preset the volume of instruments having different output levels during "soundcheck" thus eliminating problems during the live performance.
Home Recording.
Post production work in the audio/video industry.
Use in conjunction with computers and recording to disc or DAT.
Compact, goes anywhere. No external power source needed.
Power source: Dual 9 volt batteries. Over 100 hours life expectancy under normal use.
Frequency Response: -3dB from <10Hz to 60KHz.
Distortion: 0.0045% @ 1KHz, +4dB. Less than 0.01%, 10Hz to 50KHz, 0dB.
Noise: - 95dB typical.
Gain: 3X (9.5dB)
Maximum input level: 2 volts RMS.
Input Impedance: 10M each channel.
Maximum output: 5 volts RMS, at a load impedance of: >600 ohms.
Output impedance: Line and Auxiliary Out = 100 ohms
Gain variation between channels (volume controls full): less than 1/4dB
Unity gain: at 12 o'clock setting on volume control.
Resistors: 1%. Capacitors: Mylar (German Wima), Electrolytic: non-polar
Chassis: Steel, powder coated.
Dimensions: 6.7"W x 1.75"H x 6"D
Weight: 2 lbs., 3 oz.
© 1998-2004 Raven Labs