Owners Manual

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Congratulations on your purchase of the Miktek Audio Tool Box

Series signal processor! The audio industry is ﬁlled with a lot

of ‘good’ audio gear. At Miktek we believe ‘good’ is not good

enough! We manufacture our products to go beyond average

quality and performance. Thank you for trusting our vision and

choosing Miktek for your important audio application.

In this manual you will ﬁnd descriptions of the DI2, the active

direct box’s features, step-by-step set-up and operating

instructions along with detailed speciﬁcations. In addition,

we’ve also included some simple application examples

to explain the features and functions of the DI2. For the

experienced audio engineer these applications may seem basic,

however at Miktek, we wish to support and encourage new

engineers to use our products and appreciate audio quality! No

explanation is too basic! We know you are serious about your

audio equipment, and at Miktek, we are serious about providing

superior products and service to our customers. We appreciate

your patronage and hope you enjoy using your Audio Tool Box

line as much as we enjoy making them available to you.

Sincerely,

Michael Ketchell

Managing Director

INTRODUCTION

The Miktek DI2 provides direct insertion of a STEREO audio

signal into a STEREO mixer or recorder. It offers a variety of DI

solutions for live sound and recording applications. A variety

of audio signals can be connected to your DI2, e.g. guitars, bass

guitars, drum machines, keyboards, outboard signal processors,

high powered speaker outputs from an ampliﬁer, etc.

FEATURES

• Two ¼” inputs for a music instrument’s audio signal

• Two ¼ ” Thru outputs for linking the audio signal to an

ampliﬁer/recorder

• Two Balanced XLR outputs to send audio signal to main mixer

• Two PAD switches for attenuating each channel’s input signal

• Two COMBINE switches for summing/combining the input

and thru signals passively

• GROUND LIFT button to detach the XLR jak ground from the

DI2 chassis

• Battery compartment at the bottom of the DI2

• Battery/Phantom switch for swapping between battery or

phantom power operation

1. Ch2 - COMBINE: INPUT & THRU signals are passively

summed for channel 2

2. Ch2 - INPUT: ¼” unbalanced input connector for channel 2

3. Ch2 - PAD: Input signal attenuator for channel 2

4. Ch2 - THRU: ¼” output for passing the input signal through

to a stage ampliﬁer or monitor system for channel 2

5. Ch1 - COMBINE: INPUT & THRU signals are passively

summed for channel 1

6. Ch1 - INPUT: ¼” unbalanced input connector for channel 1

7. Ch1 - PAD: Input signal attenuator for channel 1

8. Ch1 - THRU: ¼” output for passing the input signal through

to a stage ampliﬁer or monitor system for channel 1

9. GND LIFT: When pressed, the ground from the DI2 chassis

detaches from the XLR jack.

10. Ch1 - OUTPUT: Balanced output XLR connector for channel

11 Ch2 - OUTPUT: Balanced output XLR connector for channel

12. BATTERY/PHANTOM SWITCH: Switches between battery or

phantom powered

SETTING UP YOUR DI2

The DI2 can be powered either by a single 9 volt battery or

standard 48 volt phantom power. Whenever phantom power is

present on the XLR cable, the DI2 will automatically disconnect

the 9 volt battery and switch to phantom power. When the

battery switch is in, the DI2 will sense the voltage and chose

which is greater. The battery/phantom switch can be used to

turn off the battery power when DI2 is not in use.

The DI2 enables you to take the signal from a guitar or

bass guitar and pass the signal from the THRU output to

an ampliﬁer without affecting the original sound. This can

eliminate the need for miking the ampliﬁer, especially with

bass guitar. Because the DI2 is an active direct box with its own

power supply, you can rely on an even frequency response

on any audio signal you connect to regardless of its output

impedance. The OUTPUT connection cancels hums/buzzes

while leaving the original signal clean and pure. Besides that

the DI2 is also useful for connecting unbalanced signals such

as DJ mixers, effects processors, and keyboards to a main PA or

recording mixer.

DIRECT APPLICATION OF AN INSTRUMENT INTO A PA SYSTEM

One of the common practices for using a stereo direct box is

getting the signal of a stereo keyboard into the PA system. The

following example gives an idea of how to do this.

FRONT AND REAR PANEL LAYOUT

DI2 Dual Channel Active Direct Box

Owner’s Manual

Summary of content (2 pages)

PAGE 1
DI2 Dual Channel Active Direct Box FRONT AND REAR PANEL LAYOUT Owner’s Manual Congratulations on your purchase of the Miktek Audio Tool Box Series signal processor! The audio industry is filled with a lot of ‘good’ audio gear. At Miktek we believe ‘good’ is not good enough! We manufacture our products to go beyond average quality and performance. Thank you for trusting our vision and choosing Miktek for your important audio application.
PAGE 2
1. Connect the keyboard output to channel 1 and channel 2 INPUT. 2. Connect channel 1 and channel 2 THRU to the input of a keyboard amp. 3. Connect channel 1 & channel 2 OUTPUT to the input of main PA mixer. CONVERTING THE OUTPUT OF UNBALANCED DEVICES The DI2 can be very useful in the studio or on stage for connecting unbalanced devices, especially keyboards and DJ mixers.