Countryman DT85 Specification

Using Your

Type 85

Type 85 Frequently

Asked Questions

Q. How do you hook up a Type 85?

Typical Lead Guitar Setup

Speaker

Instrument

Direct Box

Typical Bass Guitar Setup

Instrument

Plugging into "INST."
jack turns on the
D.I. Box

PKUP

AMP INST

Type85D.I. Box (Front)

INPUT

SPKR

Guitar Amp

Type 85 D.I. Box (Back)

Usually

"OPEN"

If it hums try

"GND"

OPEN

GND

Speaker

To Mix

Board

A. The diagram shows you the two most common
ways to connect your Type 85.

Q. I have just a guitar (or other signal source) and
no amplifier. How do I hook it up to the Type 85?

A. All signal sources must go to the "INST." jack
because inserting a plug into the "INST." jack turns
on the Type 85. The "AMP." jack is simply connected
in parallel with the "INST." jack, but it does not
operate the power switch.

Q. How do you use the "PICKUP-SPEAKER"

switch?

A. Use the "SPEAKER" position when the Type 85 is
connected to the speaker output of an amplifier and
the "PICKUP" for all other sources, including
preamp outputs.

Q. How many watts can the Type 85 handle?

A. The Type 85 is so well protected that it can
handle the full output of any amp without damage.
In "SPEAKER" mode the Type 85 will distort at the
equivalent of 1,700 watts into 8 ohms.

Q. How does the Type 85 use Phantom Power?

A. If your microphone input has 48 volt Pahntom
Power, the Type 85 will automatically switch off its
battery and use the phantom. The Type 85 will
operate with phantom voltages as low as 24 volts,
but you will need to remove its internal battery first.

Q. How many hours will the Type 85 battery last?

A. A fresh alkaline 9V battery will run the Type 85 for
400 hours. That?s 2 months running 8 hours a day,
but only 2 weeks running all the time, so it?s best to
turn the Type 85 off when not in use.

Q. How do I turn the Type 85 off?

A. Unplugging the plug from the Type 85 "INST."
jack turns off the battery. Unplugging the "INST."
jack does not turn off the Type 85 when it?s running
on Phantom Power, but it shorts the input to ground
to reduce noise.

Q. I have a hum or buzz. What should I do?

Try both positions of the "GND." switch. If you are
using an amplifier, try different positions on its
grounding switch. Walk around the stage or room
with your instrument and see if the buzz is worse
near equipment or lights. If it is, you can ground or
unplug their power cords if they are not in use. If
the Type 85 is sitting on or near another piece of
electronics equipment, move the Type 85 to see if a
very strong hum field is penetrating the Type 85
internal shields. Power amplifiers, light dimmers, TV
sets and video monitors can generate especially
strong fields.

AMP

INPUT

INST PKUP

SPKR

Plugging into the
"INST." jack turns
on the D.I.Box

Type 85 D.I.
Box (Front)

GuitarAmp

Type85D.I.Box(Back)

Usually

"OPEN"

If it hums try

"GND"

OPEN

GND

To Mix

Board

Specifications

Input Impedance:

Pickup Mode: 10MOhms

speaker Mode: 10kOhms

Maximum Input Level:

Undistorted: 5V pp
Without Damage: 220V AC/DC, 15kv pp

Gain:

Pickup Mode: -12dB
Speaker Mode: -48dB

Output Source Impedance: 100Ohms
Frequency Response:

20Hz to 20kHz =/- 0.5dB

Noise:

Equiv. to 2.0uV max at input
BW = 15kHz at 30kHz falling 12dB/Oct.

Distortion: 0.05% at 1kHz and 1V pp input
Power Requirements:

+48V at 0.4mA on microphone line or 1.5mA
from a 9V battery (life with an Eveready #216
battery is about 300 hours)

Dimensions:

13/4" (45mm) high
3" (77mm) wide
5" (127mm) long

Weight:

181/2oz. (520g)

Countryman Associates, Inc. 417 Stanford Ave. Redwood City, CA 94063-3422

Phone: [phone] or [phone] Fax: [phone] Email: sales@countryman Web: www.countryman.com