SAFETY INFORMATION
1. Please read these instructions carefully.
2. Keep all information and instructions in a safe place.
3. Follow the instructions.
4. Observe all safety warnings. Never remove safety warnings or other information from the equip-
ment.
5. Use the equipment only in the intended manner and for the intended purpose.
6. Use only sufficiently stable and compatible stands and/or mounts (for fixed installations). Make
certain that wall mounts are properly installed and secured. Make certain that the equipment is
installed securely and cannot fall down.
7. During installation, observe the applicable safety regulations for your country.
8. Never install and operate the equipment near radiators, heat registers, ovens or other sources of
heat. Make certain that the equipment is always installed so that is cooled sufficiently and cannot
overheat.
9. Never place sources of ignition, e.g., burning candles, on the equipment.
10. Ventilation slits must not be blocked.
11. Do not use this equipment in the immediate vicinity of water (does not apply to special outdoor
equipment - in this case, observe the special instructions noted below. Do not expose this equip-
ment to flammable materials, fluids or gases.
12. Make certain that dripping or splashed water cannot enter the equipment. Do not place containers
filled with liquids, such as vases or drinking vessels, on the equipment.
13. Make certain that objects cannot fall into the device.
14. Use this equipment only with the accessories recommended and intended by the manufacturer.
15. Open the device for changing the battery, do not modify this equipment.
16. After connecting the equipment, check all cables in order to prevent damage or accidents, e.g.,
due to tripping hazards.
17. During transport, make certain that the equipment cannot fall down and possibly cause property
damage and personal injuries.
18. If your equipment is no longer functioning properly, if fluids or objects have gotten inside the equip-
ment or if it has been damaged in another way, switch it off immediately and unplug it from the
mains outlet (if it is a powered device). This equipment may only be repaired by authorized, qualified
personnel.
19. Clean the equipment using a dry cloth.
20. Comply with all applicable disposal laws in your country. During disposal of packaging, please
separate plastic and paper/cardboard.
21. Plastic bags must be kept out of reach of children.
22. If the equipment has been exposed to strong fluctuations in temperature (for example, after trans-
port), do not switch it on immediately. Moisture and condensation could damage the equipment. Do
not switch on the equipment until it has reached room temperature.
23. Do not step on the power cord. Make certain that the power cable does not become kinked, espe-
cially at the mains outlet and/or power adapter and the equipment connector.
24. When connecting the equipment, make certain that the power cord or power adapter is always
freely accessible. Always disconnect the equipment from the power supply if the equipment is not
in use or if you want to clean the equipment. Always unplug the power cord and power adapter from
the power outlet at the plug or adapter and not by pulling on the cord. Never touch the power cord
and power adapter with wet hands.
25. To disconnect the equipment from the power mains completely, unplug the power cord or power
adapter from the power outlet.
26. Unplug the power cord and power adapter from the power outlet if there is a risk of a lightning strike
or before extended periods of disuse.
CAUTION:
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
There are no user serviceable parts inside. Have repairs carried out only by qualified service personnel.
CAUTION – HIGH VOLUME LEVELS WITH AUDIO PRODUCTS!
This equipment is intended for professional use. Therefore, commercial use of this equipment is subject
to the respectively applicable national accident prevention rules and regulations. As a manufacturer,
Adam Hall is obligated to notify you formally about the existence of potential health risks. Hearing dam-
age due to high volume and prolonged exposure: When in use, this product is capable of producing high
sound-pressure levels (SPL) that can lead to irreversible hearing damage in performers, employees, and
audience members. For this reason, avoid prolonged exposure to volumes in excess of 90 dB.
MANUFACTURER’S WARRANTY & LIMITATION OF LIABILITY
You can find our current warranty conditions and limitation of liability at: http://www.adamhall.com/
media/shop/downloads/documents/manufacturersdeclarations.pdf
To request warranty service for a product, please contact Adam Hall GmbH, Daimler Straße 9, 61267 Neu
Anspach / Email Info@adamhall.com / 49 (0) 6081 / 9419-0
PROPER DISPOSAL OF THIS PRODUCT
(WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT)
(Valid in the European Union and other European countries with waste separation)
This symbol on the product, or the documents accompanying the product, indicates that this appliance
may not be treated as household waste. This is to avoid environmental damage or personal injury due
to uncontrolled waste disposal. Please dispose of this product separately from other waste and have it
recycled to promote sustainable economic activity.
CONCEPT
Today’s instrument amplifiers mostly feature a single input only, especially guitar amps. To connect two
instruments simultaneously and match their levels usually requires a small, inexpensive mixer. However,
these often generate excessive noise when connected to guitar amplifiers. Enter the Palmer DUETTO...
USE
The Palmer DUETTO is a miniature mixer with a discrete FET input circuit. Featuring tube-like character-
istics, FET gain and impedance are extremely suitable for electric guitars. The DUETTO also works well
with other instruments and line level equipment providing lossless, active mixing of two sources. Both
inputs feature trim pots to match varying instrument levels. This enables two guitar players to use a sin-
gle input amplifier simultaneously, e.g. teacher and student, or for impromptu sessions. The DUETTO can
also be used for playing along to MP3 or other music players (a suitable cable or adapter may be
required for connection). Due to the low current draw the DUETTO is easily powered by a standard 9V
battery for many hours. A DC input is provided for use with an external mains adapter.
CONNECTIONS AND SETUP
Use high quality shielded instrument cable for connection. For use with passive guitar pickups input
cable length should not exceed 20 ft. (6m) to prevent treble roll-off. Due to the lo-Z output cable length
from the DUETTO to the amplifier input is less critical. Input 1 is switched and activates the DUETTO
when a cable is inserted. CAUTION: use cable with 6.3mm TS plugs (mono jack) only. Always disconnect
from input 1 to prevent battery drain when not using the DUETTO. The other cables may remain con-
nected. Use the GAIN trim pots next to the inputs to set the input levels. To indicate proper function a low
level signal will be present even when set fully counterclockwise. Turn fully clockwise for the maximum
amplification of 6dB (level x 2).
POWER SUPPLY
The DUETTO can be powered by a standard 9V battery or an external mains adapter (e.g. Palmer PW9V).
When inserting a battery please observe the correct polarity as indicated inside the battery compart-
ment. To check the battery press the button next to the battery compartment. The LED indicator lights
up if the battery provides sufficient power. A DC input is provided for external powering (5.5mm barrel
style with 2.1mm negative center pin as indicated on the unit). The DUETTO works with a filtered supply
of 9 - 18V DC. External powering automatically disconnects the battery. If the DUETTO is not used for an
extended period of time the battery should be removed to prevent damage from leakage.
SPECIFICATIONS
Model name:
PDUETTO
Product type:
combiner
Type:
active
Inputs:
2
Input connectors:
6.3 mm Jack
Input impedance:
1 M Ohm(s)
Adjustable input:
yes
Outputs:
1
Output connectors:
6.3 mm Jack
Adjustable output:
no
Output impedance:
10 k Ohm(s)
Indicators:
Power
Controls:
input level
Operating voltage:
9 V block, 9 V DC power supply
Width:
125 mm
Depth:
80 mm
Height:
45 mm
Cabinet material:
sheet steel
Cabinet surface:
powder coated
Weight:
0.48 kg
© Palmer Musical Instruments, Adam Hall GmbH, D-61267 Neu-Anspach, Daimlerstr. 9, Germany TEL: ++49 (0)6081 94190
FAX: ++49 (0)6081 43280 WEB: www.adamhall.com, www.palmer-germany.com EMAIL: info@palmer-germany.com
PDUETTO
Nano Mixer for Guitars and Line Signals - MANUAL
