DigiTech AM-4208 User Manual

Mini 3 Channel Mixer with USB Interface

User Manual

AM-4208

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Main Features

 Ultra-compact and ultra-low noise analog mixer with USB/Audio interface
 Powered through USB or external adaptor
 Built-in stereo USB/Audio interface to connect directly to your computer
 Free audio recording and editing
 State-of-the-art Mic Preamp comparable to stand-alone boutique preamps
 2-band graphic EQ for warm and musical sound
 2-Track input assignable to Headphone or Main Mix output
 Main Mix plus separate Phones output
 High-quality components and exceptionally rugged construction.

Technical Specifications:

 Runs on phantom power
 Operating System: Windows® 2000, XP® or higher, Mac® OS 9.0.4 or higher, 10.X or

higher.

 Power supply: USB connection, adaptor (DC5V, 500mA supplied)
 Power consumption: 2.5W
 Dimension: 144(L) x 100(W) x 42(H)mm
 Weight: 0.45Kg

Box Contents:

 1 x Mini 3 Channel Mixer
 1 x Mains Power Adaptor
 1 x USB Lead

IMPORTANT SAFETY INSTRUCTIONS

 Read these instructions.
 Keep these instructions. Heed all warning.
 Follow all instructions.

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3

AM-4208 Hook-up

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Caution

There are no user serviceable parts inside this speaker. Do not attempt any repairs. Doing so will void
your manufactures warranty.

Unpacking

Every AM-4208 has been thoroughly tested and has been shipped in perfect operating condition.
Carefully check the shipping carton for damage that may have occurred during shipping. If the carton
appears to be damaged; inspect your units carefully for any damage and be sure all accessories
necessary to operate the system have arrived intact. In the event while damage has been found or parts
are missing, please contact our customer support number for further instructions.

Water & Moisture

The apparatus should be protected from moisture
and rain, cannot be used near water, for example:
near bath- tub, kitchen sink or a swimming pool, etc.

Heat

The apparatus should be located away from the heat
source such as radiators, stoves or other appliances
that produce heat.

Ventilation

Do not block areas of ventilation opening. Failure to
do could result in fire. Always install accordance with
the manufacturer's instructions.

Object and Liquid Entry

Objects do not fall into and liquids are not spilled
into the inside of the apparatus for safety.

Power Cord and Plug

Protect the power cord from being walked-on or
pinched particularly at plugs, convenience
receptacles, and the point where they exit from the
apparatus.

Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type
plug has two blades and a third grounding prong.
The wide blade or the third prong is provided for
your safety. If the provided plug does not fit into
your outlet, refer to electrician for replacement.

Power Supply

The apparatus should be connected to the power
supply only of the type as marked on the apparatus
or described in the manual. Failure to do could result
in damage to the product and possibly the user.

Unplug this apparatus during lightning storms or
when unused for long periods of time. Where the
MAINS plug or an appliance coupler is used as the
disconnect device, the disconnect device shall
remain readily operable.

Fuse

To prevent the risk of fire and damaging the unit,
please use only of the recommended fuse type as
described in the manual. Before replacing the fuse,
make sure the unit turned off and disconnected from
the AC outlet.

Electrical Connection

Improper electrical wiring may invalidate the
product warranty.

Cleaning

Clean only with a dry cloth. Do not use any solvents
such as benzol or alcohol.

Servicing

Do not implement any servicing other than those
means described in the manual. Refer all servicing to
qualified service personnel only.

Only use accessories/attachments or parts
recommended by the manufacturer.

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Technical Specifications

Type

3 Channel USB Mixer

Frequency Response

Min. input to any output (gain @
0dB, rated output level)

10Hz to 40kHz (0, -1dB)
10Hz to 100kHz (0, -3dB)

Distortion (THD&N)

Mic input to MAIN output (gain @
0dB, rated output level @ 20Hz –
20kHz bandwidth)

0.01% (A-weighted)

MIC EIN (Equivalent Input Noise)

Input: Channel Input MIC (Rs=150 Ω,

gain @ max., 20Hz – 20kHz
bandwidth)

-118dB (A-weighted)
CMRR

Mic in to main out (gain @ max., @
1kHz)

70dB

Input Gain (20Hz- 20kHz)
Mono Channel

Mic: 0 to 50dB, LINE: -35 to
+15db

Stereo Channel

Attenuation (Crosstalk) (20Hz­20kHz)

Line in, 1/4" TRS Main Out, 1kHz relative to 0dB, 22Hz – 22kHz Filter,

gain @ unity.

Main mix knob /fader @ - ∞,
channel level knob /fader @ -∞

-79dB (A-weighted)

-79dB (A-weighted)

Main mix knob/fader @ 0dDB, 1kHz,
22Hz-22kHz filter, THD @ 1%)

+17dB
Rated output level

Maximum voltage gain (EQ and
PAN/BAL knob @ 0dB, other all
knob or fader @ max, 1kHz,
Rs=600Ω)

Mono channel mic input
Main out (3.5 jack stereo)

69dB

Mono channel mic input
Monitor (3.5 jack stereo)

78dB

Mono channel mic input
Tape out (RCA)

69dB

Mono channel line input
Main out (3.5 jack stereo)

53dB

Stereo channel line input
Main out (3.5 jack stereo)

16dB

Tape input
Main out (3.5 jack stereo)

6dB

Tape input
Monitor (3.5 jack stereo)

9dB

Main mix noise (20Hz – 20kHz)

Main out (all knob/fader @ 0 dB,
22Hz-22kHz filter gain @ unity)

Main mix knob /fader @ - ∞, channel
level knob /fader @ -∞

-120 dB (A-weighted)

Main mix knob /fader @ 0dB,
channel level knob /fader @ -∞

-100dB (A-weighted)

Main mix knob /fader @ - ∞, channel
level knob /fader @ 0dDB

-98dB (A-weighted)

Equalisation
Mono channels

Stereo channels

High ±15dB@12kHz

High ±15dB@12kHz

Low ±15dB @80kHz

Low ±15dB @80kHz

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Peak Indicator

Channel 1

+15dDB

VU Meters

Main left and right (1-segment)

Clip+15dB

Impedance

Microphone input

2.6kΩ

Line input

10kΩ

Tape input

10kΩ

Main outputs

120kΩ

Phones output

120kΩ

Tape output

1kΩ

USB section

USB interface

USB2.0

ADC&DAC

16 bit delta sigma, 44.1kHz
sampling rates

Operating system

Windows® 2000, XP or
higher, Mac® OS 9.0.4 or
higher 10.x or higher

Phantom power

Mic pin 2/pin3 and pin1 (XLR-3-31
type balanced 1=GND, 2=HOT,
3=COLD)

+20V
Power supply

USB connection

DC5V, 500mA

Adaptor

DC5V, 500mA

Power consumption

2.5W

Physical
Dimensions

144(L) x 100(W) x 42(H)mm

Weight

0.45kg

IMPORTANT SAFETY SYMBOLS

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Distributed by:

TechBrands by Electus Distribution Pty. Ltd.

320 Victoria Rd, Rydalmere

NSW 2116 Australia

Ph: 1300 738 555

Int’l: [phone]

Fax: [phone]

www.techbrands.com

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