AMUMU GLORIFIER™ acoustic preamp - direct box

The AMUMU GLORIFIER™ acoustic preamp direct box is fully handcrafted with extremely low noise, excellent clarity and warm EQ. It is designed for all acoustic-electric instruments with various pickups. It’s built with +/-20 dB Gain control and 3-band EQ, powered by either 9V DC adapter(center negative), 48V phantom power or the 9-volt battery, connected with 1/4” Unbalanced Input, XLR Balanced Output and 1/4” Unbalanced Output.

AMUMU GLORIFIER™ acoustic preamp direct box is fully handcrafted with extremely low noise, excellent clarity and warm EQ. It is designed for all acoustic-electric instruments with various pickups. It’s built with +/-20 dB Gain control and 3-band EQ, powered by either 9V DC adapter(center negative), 48V phantom power or the 9-volt battery, connected with 1/4” Unbalanced Input, XLR Balanced Output and 1/4” Unbalanced Output.

FEATURES

• Handmade Preamp DI Box for various acoustic-electric guitars with piezo, magnetic, under-saddle and microphone pickups.
• +/-20 dB Gain control with 3-band EQ, Super-Low Noise and Sparkling Acoustic Clarity.
• Phase Switch to reduce feedback and also to generate a fuller and warmer tone.
• Powered by either 9V DC adapter(center negative), 48V phantom power or the 9-volt battery.
• Convert high impedance unbalanced signal from the acoustic-electric instrument to low impedance balanced signal for the mixer, PA system, recording audio interface and microphone preamp. ( 1/4” Unbalanced Input to XLR Balanced DI Output plus a 1/4” Unbalanced Output )

POWER REQUIREMENTSThe AMUMU GLORIFIER™ Preamp DI can be powered by any of the following 3 methods.

• Any standard 9V DC center negative power supply/adapter using a standard 2.1mm center pin and 5.5mm outside barrel (not included)
• 12V - 48V Phantom Power through D.I. output (XLR cable needed, Mixer/Audio Interface with built-in 48V phantom power needed)
• A PP3-size 9-volt battery (Alkaline 6LR61, not included)
• • Unscrew the bottom cover to install the battery
  • The battery will not be drained or charged when using with phantom power or DC adapter
  • Unplug the input cable when not using to power off the unit

INPUT

• INPUT (MONO PLUG): 1/4” Line In with mono plug from the acoustic-electric instruments ( guitar, bass, ukulele, cajon, banjo, etc)

OUTPUTS

• OUTPUT (UNBALANCED): 1/4” Line Out with mono plug
• D.I. OUTPUT (BALANCED): XLR DI output to low-impedance devices like the mixer, microphone preamp, PA system and recording consoles.

PS: The DI XLR output and the line output can be used simultaneously. Either you can use the 1/4" line out as a monitor for connecting to a tuner or as an output for connecting the guitar(instrument) amplifier while using the DI output with a mixer or PA system.CONTROLS

• GAIN: Controls the Input Sensitivity from the instruments and sets the amount of pre-amplification before the signal enters the EQ section.
• VOLUME: Located at the OUTPUT (the very end of the circuit) and simply allows you to adjust the volume.
• BASS: Controls the amount of bass in your signal. Left is less, right is more
• MID: Controls the amount of mid frequencies in your signal. Left is less, right is more.
• TREBLE: Controls the amount of treble in your signal. Left is less, right is more.
• PHASE: Reduce feedback hum

LEDS

• 48V: This LED will light on when using with phantom power only.
• ON: This LED will light on while using with any of the 3 power methods but only when the INPUT jack is plugged with a mono cable.

SPECIFICATIONS

Input Impedance - 1 Megohm (MΩ)
D.I. Balanced Output Impedance (XLR) - 100 Ohm (Ω)
1/4” Unbalanced Output Impedance - 100 Ohm (Ω)
Frequency Response - 30Hz - 30kHz
BASS Control +/- 20 dB @ 100Hz
MID Control +/- 20 dB @ 1.5kHz
TREBLE Control +/- 20 dB @ 10kHz
GAIN Control +/-20 dB
Current Draw - 15mA average
Expected Battery (Alkaline) life under continuous use~20-25 hours (depending on the actual conditions of use)

Dimensions(L x W x H) 110 x 58 x 49 mm

Weight (without battery) 230g