Palmer PMBLA Anleitung

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 equipment.
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 equipment 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 equipment 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 transport), 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, especially 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 acces-
sible. 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 ob-
ligated to notify you formally about the existence of potential health risks. Hearing damage 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
The PMBL-ACTIVE is designed for the simultaneous connection of two mixing desks / line sources to a single
sound reinforcement system, e.g. disco mixer and live desk to the venue system. The active circuitry provides
lossless mixing and signal amplification. The balanced inputs are optimized for line level signals, and the two
stereo channels can be mixed to the stereo output in any ratio. Featuring combo sockets for XLR and 6.3mm
TS connectors channel 1 is designed for consumer level equipment. Input sensitivity is switchable from -10dbV
(consumer level) to +6dBu (studio level). The channel 1 inputs are transformer balanced to prevent ground loops.
The XLR inputs of channel 2 are electronically balanced with a nominal sensitivity of +6dBu. Both channels
feature MONO and MUTE switches, engaging the mute switch changes the channel LED color from green to red.
Rotary controls set the overall levels with a maximum input signal boost of 16dB (approx. 6:1) while unity gain is
at the 12 o'clock (center) position. Individual GROUND LIFT switches are provided for each stereo input and the
output. When engaged they disconnect pin 1 of the respective XLRs from ground to eliminate ground loop hum.
The PMBL-ACTIVE is mains powered by an integrated universal power supply.
CONNECTIONS AND SETUP
The standard rules for placement and operating environment apply, i.e. do not use the PMBL-ACTIVE near water
or moisture. Protect all cables from being walked on to prevent pinching and tripping. Although the PHDA02 does
not generate significant amounts of heat it should not be operated close to heat producing equipment. Use the
included IEC power cord for mains connection. Keep the unit switched off while making all connections to prevent
noise (the mains indicator LED next to the power switch does not illuminate). The input and output connectors are
located at the rear of the unit. Input connections to channel 1 can be made using cables with 6.3mm TS, 6.3mm
TRS, and XLR connectors. The stereo inputs are transformer balanced, when using 6.3mm TS connections input
is unbalanced automatically. Channel 2 features female XLR connectors wired to the international standard (pin
1 = shield, pin 2 = hot / in phase, pin 3 = cold / 180º phase reversal). For unbalanced connection to channel 2,
pins 1 and 3 of the XLR connector must be bridged. Use high quality shielded microphone cable for connection to
the PMBL-ACTIVE due to the superior noise rejection of balanced cables. However, shielded instrument cable with
6.3mm TS connectors may be used for connection to channel 1.
© 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
PMBLA – ACTIVE 2-INTO-1 STEREO LINE MIXER
USE
After making all connections engage the mains switch. Mains supply to the PMBL-ACTIVE is indicated by the
power LED, and next to it the channels' status LEDs light up. Green indicates that a channel is active, red
indicates the channel mute switch is engaged. If you are not familiar with the operating levels of the connected
equipment turn the level controls fully counterclockwise before switching on the PMBL-ACTIVE. Now slowly rotate
them clockwise. Unity gain is approximately halfway at the center position and the recommended setting. If the
equipment connected to the PMBL-ACTIVE features adjustable output levels these should be set for sufficient
PMBL-ACTIVE output to the power amplifier/s. Minor variations are irrelevant, however, turning up the gain of
one unit while reducing it at the other usually results in a lack of dynamics and/or inferior signal-to-noise ratio.
As mentioned before, consumer level mixers should be connected to channel 1, and the +6dBu/-10dBV switch
should be engaged for optimum input sensitivity matching. Each channel features a MONO switch providing
a summed stereo signal when engaged. It can also be used to switch a mono input signal to the L/R outputs.
GROUND LIFT
When the GND LIFT switches are disengaged the XLR pins 1 are connected to ground. If your sound system
produces persistent low frequency hum irrespective of the level control settings this might be caused by double
grounding. Push the GND LIFT switches one by one to find the positions with the least interference.
TECHNICAL SPECIFICATIONS
Product type: combiner
Type: active
Inputs: 2
Input connectors: 6.3 mm Jack, XLR
Input impedance: 2 k Ohm(s)
Adjustable input: yes
Outputs: 2
Output connectors: XLR
Adjustable output: no
Output impedance: 600 Ohm(s)
Max. output level: +20 dBu (balanced) dBu
Indicators: Power
Controls: Power, mute, mono/stereo, +6 dBu / -10 dBV switchable, ground lift
Operating voltage: integrated (115 / 230 V)
Power consumption: 2.5 W
Width x Depth x Height: 222 x 160 x 44 mm
Cabinet material: sheet steel/aluminium
Cabinet surface: powder coated/anodized
Weight: 1.51 kg