Amumu GLORIFIER - User Manual

GLORIFIER™ ACOUSTIC PREAMP DI
USER MANUAL
Thank you for choosing the AMUMU GLORIFIER™ acoustic preamp direct box. This 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, especially, for all the
AMUMU pickups.
* AMUMU BOUNTIFUL™ series
* AMUMU SP30, SP31, SP60
* AMUMU SBT10, SBT12
PS: We offer a special discount for all the AMUMU pickups if you’ve owned the GLORIFIER™ preamp, just contact us for more info.
MAIN FEATURES
* Handcrafted 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 REQUIREMENTS
The 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 used 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 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.
LEDS
* 48V: This LED will light on when used 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
* GAIN: +/-20 dB
* Expected Battery(Alkaline) life under continuous use: ~20-25 hours (depending on the actual conditions of use)
PRECAUTIONS WHEN CONNECTING
* To prevent malfunction and equipment failure, always turn down the VOLUME and turn off the power of your amplifier and other devices
before making any connections.
* Once the connections have been completed, turn on the power to your various devices in the following order, otherwise, you risk
causing malfunction and/or damage to speakers and other devices.
* When powering up: Turn on the power of the amplifier last.
* When powering down: Turn off the power of the amplifier first.
* Tone Controls:
* BASS: +/- 20 dB @ 100Hz
* MID: +/- 20 dB @ 1.5kHz
* TREBLE: +/- 20 dB @ 10kHz
* Current Draw: 15mA average
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Summary

Power Requirements

Inputs and Outputs

Input (Mono Plug)

1/4" Line In with mono plug to connect acoustic-electric instruments like guitar, bass, ukulele, cajon, banjo.

D.I. Output (Balanced)

XLR DI output to low-impedance devices like mixer, microphone preamp, PA system, and recording consoles.

Output (Unbalanced)

1/4" Line Out with mono plug to connect with guitar amplifier.

Controls

Gain

Controls Input Sensitivity and pre-amplification amount before signal enters the EQ section.

Volume

Adjusts the output volume. Located at the very end of the circuit.

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.

Indicators and Specifications

LEDs

Indicates when phantom power is used (48V LED) or when the unit is ON.

Specifications

Details impedance, frequency response, expected battery life, and tone controls.

Precautions and Safety

Precautions When Connecting

Instructions for safe connection and operation to prevent damage or malfunction.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The AMUMU GLORIFIER™ Acoustic Preamp DI is a handcrafted preamp direct box designed for acoustic-electric instruments, offering low noise, excellent clarity, and warm EQ. It is particularly suited for AMUMU pickups, including the BOUNTIFUL™ series, SP30, SP31, SP60, SBT10, and SBT12 models.

Function Description:

The primary function of the GLORIFIER™ is to convert a high-impedance unbalanced signal from an acoustic-electric instrument into a low-impedance balanced signal suitable for mixers, PA systems, recording audio interfaces, and microphone preamps. This conversion is achieved via a 1/4" unbalanced input to an XLR balanced DI output, with an additional 1/4" unbalanced output. It supports various acoustic-electric guitars with piezo, magnetic, under-saddle, and microphone pickups.

Important Technical Specifications:

• Input Impedance: 1 Megohm (MΩ)
• Output Impedance:
  • D.I. Balanced Output (XLR): 100 Ohm (Ω)
  • 1/4" Unbalanced Output: 100 Ohm (Ω)
• Frequency Response: 30Hz - 30kHz
• Gain Control: +/-20 dB
• Tone Controls:
  • BASS: +/- 20 dB @ 100Hz
  • MID: +/- 20 dB @ 1.5kHz
  • TREBLE: +/- 20 dB @ 10kHz
• Current Draw: 15mA average
• Expected Battery Life (Alkaline): ~20-25 hours of continuous use (actual conditions may vary).

Usage Features:

• Powering Options: The GLORIFIER™ can be powered by three methods:
  1. Any standard 9V DC center-negative power supply/adapter (2.1mm center pin, 5.5mm outside barrel, not included).
  2. 12V - 48V Phantom Power through the D.I. output (requires an XLR cable and a mixer/audio interface with built-in 48V phantom power).
  3. A PP3-size 9-volt alkaline battery (6LR61, not included). The battery is installed by unscrewing the bottom cover. The battery is not drained or charged when phantom power or a DC adapter is used. To power off the unit when using battery, the input cable must be unplugged.
• Input: Features a 1/4" mono input jack for connecting acoustic-electric instruments such as guitars, basses, ukuleles, cajons, and banjos.
• Outputs:
  • 1/4" Unbalanced Output: A mono output for connecting to a tuner or a guitar/instrument amplifier, serving as a monitor.
  • XLR Balanced D.I. Output: Connects to low-impedance devices like mixers, microphone preamps, PA systems, and recording consoles.
  • Both outputs can be used simultaneously.
• Controls:
  • GAIN: Adjusts the input sensitivity and the amount of pre-amplification before the signal enters the EQ section.
  • VOLUME: Located at the very end of the circuit, it adjusts the overall output volume.
  • BASS: Controls the amount of bass in the signal (left for less, right for more).
  • MID: Controls the amount of mid frequencies in the signal (left for less, right for more).
  • TREBLE: Controls the amount of treble in the signal (left for less, right for more).
  • Phase Switch: Reduces feedback and generates a fuller and warmer tone.
• LED Indicators:
  • 48V LED: Lights up only when phantom power is being used.
  • ON LED: Lights up when any of the three power methods are in use, but only when a mono cable is plugged into the INPUT jack.

Maintenance Features:

• Connection Precautions:
  • Always turn down the VOLUME and turn off the power of your amplifier and other devices before making any connections to prevent malfunction and equipment failure.
  • When powering up, turn on the power of the amplifier last.
  • When powering down, turn off the power of the amplifier first.
  • Following these steps helps prevent malfunction and/or damage to speakers and other devices.
• Battery Installation: The 9-volt battery is installed by unscrewing the bottom cover.
• Troubleshooting: If the unit is not powering on, ensure the input jack has a mono cable plugged in if using battery or DC adapter, or verify phantom power is active if using XLR.

Amumu GLORIFIER Specifications

General

Brand	Amumu
Model	GLORIFIER
Category	Amplifier
Language	English