HPA 6 - Headphone amplifier LD Systems - Free user manual and instructions

USER MANUAL HPA 6 LD Systems

LDHPA6Introduction The LD Systems HPA6 is a versatile 19", 1U Headphone Amplifier with 6 independent channels for applications requiring professional audio monitoring. Each of the six channels has three headphone outputs with 6.3 mm stereo jack, via an individual aux input and a separate mono switch. Audio levels are displayed both in the input and on the individual channels via level meter LED chains.

ENGLISHDEUTSCHFRANCAIS FRANCAISFRANCAIS FRANCAISFRANCAIS ESPAÑOLPOLSKIITALIANO You‘ve made the right choice! We have designed this product to operate reliably over many years. LD Systems stands for this with its name and many years of experience as a manufacturer of high-quality audio products. Please read this User‘s Manual carefully, so that you can begin making optimum use of your LD Systems product quickly. You can find more information about LD SYSTEMS at our Internet site WWW.LD-SYSTEMS.COMLD HPA6

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, observ e 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. Do not open or modify this equipment.

16. After connecting the equipment, check all cables in order to prevent damage or accidents, e.g., due to

17. During transport, make certain that the equipment cannot fall down and possibly cause property damage and

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 anot her 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.

FOR EQUIPMENT THAT CONNECTS TO THE POWER MAINS:

22. CAUTION: If the power cord of the device is equipped with an earthing contact, then it must be connected to

an outlet with a protective ground. Never deactivate the protective ground of a power cord.

23. 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.

24. Before connecting the equipment to the power outlet, first verify that the mains voltage and frequency match

the values specified on the equipment. If the equipment has a voltage selection switch, connect the equipment to the power outlet only if the equipment values and the mains power values match. If the included power cord or power adapter does not fit in your wall outlet, contact your electrician.

25. 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.

26. 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 wantTo prevent possible hearing damage, avoid listening at high volume levels over long periods of time. Even exposure to short bursts of loud noise can result in hearing loss. Please keep the volume constantly at a comfortable level. Avoid direct sunlight!

ITALIANO POLSKI ESPAÑOL FRANCAIS FRANCAIS FRANCAIS FRANCAIS FRANCAIS DEUTSCH ENGLISH SAFETY: 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.

27. Whenever possible, avoid switching the equipment on and off in quick succession because otherwise this

can shorten the useful life of the equipment.

28. IMPORTANT INFORMATION: Replace fuses only with fuses of the same type and rating. If a fuse blows repea-

tedly, please contact an authorised service centre.

29. To disconnect the equipment from the power mains completely, unplug the power cord or power adapter

from the power outlet.

30. If your device is equipped with a Volex power connector, the mating Volex equipment connector must be

unlocked before it can be removed. However, this also means that the equipment can slide and fall down if the power cable is pulled, which can lead to personal injuries and/or other damage. For this reason, always be careful when laying cables.

31. 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

RISK OF ELECTRIC SHOCK

CAUTION: Never remove the cover, because otherwise there may be a risk of electric shock. There are no user serviceable parts inside. Have repairs carried out only by qualified service personnel. The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electrical shock. The exclamation mark within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance instructions. 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 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.CONNECTIONS, CONTROLS, AND INDICATORS: FRONT PANEL The appearance and functions of channels CH1 to CH6 are identical.

MAIN LEVEL Volume control for the stereo line input MAIN INPUT LEFT and RIGHT (rear panel). Connect a source device (e.g. mixer) to the XLR or jack connectors of the line input and begin playback of an audio signal. In order to obtain the optimum signal to noise ratio, using the MAIN LEVEL volume control, set the audio signal so that the LEDs of the LED chain (No. 3) light up between 0 dBu and 12 dBu. It is not critical if the LED lights briefly at peak levels for the incoming signal, however continuous illumination should be avoided by reducing the volume.

12CONNECTIONS, CONTROLS, AND INDICATORS:

DIRECT IN Additional stereo line input (6.3 mm jack) without volume control (adjust the volume on the source player) The signals of the DIRECT IN and MAIN INPUT are mixed together as a stereo signal.

LEVEL METER 8-segment LED level meter for the MAIN INPUT and the DIRECT IN. Once the CLIP LED lights up, the line input is operating at peak level. It is not critical if the LED lights briefly at peak levels for the incoming signal, however continuous illumination should be avoided by reducing the volume.

AUX IN (CH1 - CH6) Separate stereo line input channels 1 to 6 (CH1 - CH6) with 6.3 mm jack socket. The AUX IN input signal is located only on the headphone output of the corresponding channel (signal AUX IN CH1 is only on the headphone output HEADPHONE OUT CH1, etc.). The balance between the MAIN INPUT line-input and AUX IN line-input can be adjusted individually on the INPUT MIX controller of the respective channel.

INPUT MIX (CH1 - CH6) Balance control for setting the input volume ratio between MAIN INPUT line input and the AUX IN line input of the respective channel CH1 to CH6. In the centre position, the audio signals of both MAIN INPUT and AUX IN line-inputs are reproduced in the same ratio.

6.3 mm stereo jack for connecting headphones (channel CH1 to CH6). Up to 3 headphones can be connected

to each channel using a 6.3 mm jack, one at the front and two on the back. Make sure that the total impedance of all headphones connected to the corresponding channel is not less than 8 ohms. CAUTION: Very high sound pressure levels may occur that could permanently damage your hearing!

PHONES LEVEL (CH1 - CH6) Volume control for the headphone output of the respective channel CH1 to CH6. IMPORTANT: Before connecting headphones, turn the volume controller PHONES LEVEL of each channel to a minimum (counter-clockwise) to prevent equipment damage and permanent hearing damage. After plugging in the headset, increase the volume by turning the volume control slowly to the right (clockwise).

MONO SWITCH WITH LED INDICATOR (CH1 - CH6) Once the mono switch is pressed, the LED indicator of the respective channel will light up and the signals from the MAIN INPUT, DIRECT IN and AUX IN line inputs are mono summed in the corresponding channel (CH1 - CH6).

MUTE SWITCH LEFT / RIGHT (CH1 - CH6) The left and/or right channel of the stereo signal of a headphone output can be muted using the MUTE L (left) and R (right) switch. For example: If the MUTE switch L (left) is pressed, only the signal from the right channel can be heard on the right side of the headphones. In addition, if the mono-switch is pressed, you will hear the right-channel signal in mono on both sides of the headphones in the same ratio.

LEVEL METER (CH1 - CH6) 4-segment LED level meter for the headphone outputs channel 1 to 6 (HEADPHONE OUT CH1 - CH6). Once the CLIP LED lights up, the line input is operating at peak level. It is not critical if the LED lights briefly at peak levels for the incoming signal, however continuous illumination should be avoided by reducing the volume. CAUTION: Very high sound pressure levels may occur that could permanently damage your hearing!

POWER On / Off switch for the power supply of the device.

POWER LED Lights up once the system is properly connected to the power mains and switched on.

MAIN INPUT LEFT / RIGHT (XLR) Balanced line inputs on the left and right with 3-pole XLR connector.

MAIN INPUT LEFT / RIGHT (JACK) Balanced line inputs on the left and right with 3-pole XLR connector.

MAIN OUTPUT LEFT / RIGHT (XLR) Balanced line outputs left and right with 3-pole XLR connector (parallel to the MAIN INPUT LEFT / RIGHT).

MAIN OUTPUT LEFT / RIGHT (JACK) Balanced line outputs left and right with 6.3 mm jack (parallel to the MAIN INPUT LEFT / RIGHT).

Two parallel wired stereo headphone outputs with a 6.3 mm jack channel 1 to 6 The jacks are also wired in parallel with the headphone jack (No. 6) of the corresponding channel on the front panel. Make sure that the total impedance of all headphones connected to the corresponding channel does is not less than 8 ohms.

Switch for setting the operating voltage. The mains voltage of your power supplier and the operating voltage of the device must be the same!

IEC POWER SOCKET WITH INTEGRAL FUSE HOLDER IMPORTANT INFORMATION: BEFORE using this equipment, make certain that the mains voltage of your ener- gy utility and the operating voltage of the device match! Always replace the fuse with a fuse of the same type and values according to the supply voltage (see label on the rear panel) If the fuse blows repeatedly, please contact an authorised service centre.

19WIRING EXAMPLE: Each of the 6 headphone channels (CH1 - CH6) has a separate stereo input (AUX IN); the audio signal can be mixed with the signal of the MAIN INPUT LEFT / RIGHT line input (main signal). The volume ratio of both signals can be adjusted using the INPUT MIX controller. Thus, it is possible, through the use of different signal sources, to assign an individual signal mix to each headphone channel. In our example, the audio signal from the headphone channel CH6 is a combination of mixer MAIN OUT L / R (main signal) and mixer AUX SEND (individual signal).

Input Impedance: 13 kOhm Line Outputs: Main Output (stereo, balanced) Line Output Connectors: XLR and 6.3 mm jack L&R Headphone Outputs: 6 x 3 Headphone Output Connectors: 6.3 mm stereo jack Power Output: 6 x 125 mW Minimal Connected Impedance per Channel: 8 ohms Frequency Response: 20 Hz - 20.000 Hz Controls: Main Input Level, 6 x Input Mix Main/Aux, 6 x Headphone Level, 6 x Mono Switch, 6 x Mute L&R, Power Indicators: Main Input/Direct In Level Meter (8-segment LED chain), 6 x channel level meter (4-segment LED chain), 6 x mono LED, 6 x Mute L&R LEDs, Power LED Power Supply: IEC power socket Operating Voltage: 220 - 240 V AC, 50 - 60 Hz

110 - 120 V AC, 50 - 60 Hz

Power Consumption: 40 W Housing Material: metal Housing Surface: lacquered Width: 483 mm Height: 44 mm Depth: 217 mm Weight: 3 kg Accessories (included): power cord SPECIFICATIONS:

MANUFACTURER‘S WARRANTY

This warranty extends to the LD SYSTEMS branded product you purchased from Adam Hall. The statutory warranty rights against the vendor shall not be affected by this warranty. Rather, this warranty gives you additional independent claims against Adam Hall. With this warranty, Adam Hall ensures that products you have purchased from Adam Hall or Adam Hall partners, under normal use, are free of defects in material or workmanship for a period of 2 years from the date of purchase. The warranty period begins on the date of purchase. In order to assert a claim for warranty service, the proof of date of purchase is provided by the receipt bearing the date of purchase or the date of purchase on the delivery note. You are entitled to warranty service under the conditions and provisions set out in this document, if a repair within the warranty period is required. This warranty applies only to the original purchaser of the products supplied by Adam Hall and is not transferable to any person to whom the property is transferred by the original purchaser. Within the warranty period, the defective parts or the product from Adam Hall will be repaired or replaced. Under the terms of this warranty, all the replaced or removed components become the property of Adam Hall. In the unlikely event that a product acquired from Adam Hall, repeatedly exhibits a defect, Adam Hall may decide, at its discretion, to replace this product with a comparable product of at least the same performance. Adam Hall does not guarantee that the operation of this product will be uninterrupted or error-free. Adam Hall accepts no responsibility for any damage due to incorrect compliance with the instructions received in the delivery. This warranty does not extend to: - wearing parts (eg battery, tubes). - devices that have had their serial number removed or damaged, or failed as a result of an accident - inappropriate or abusive use or other external causes - devices that were not used in accordance with the operating parameters defined in the user documentation shipped with the product - devices that have been repaired using parts not made or distributed by Adam Hall - devices that have been serviced, modified or repaired by someone other than Adam Hall or an authorised service partner. These terms and conditions constitute the complete and exclusive warranty agreement between you and Adam Hall regarding the Adam Hall branded product you have purchased. This warranty is valid only within Europe. Outside of Europe please contact our official distributors.14 ENGLISHDEUTSCHFRANCAIS FRANCAISFRANCAIS FRANCAISFRANCAIS ESPAÑOLPOLSKIITALIANO MANUFACTURER´S DECLARATIONS:

LIMITATION OF LIABILITY

If your Adam Hall branded hardware product fails to work as warranted above, your sole and exclusive remedy shall be repair or replacement. Adam Halls’ maximum liability under this limited warranty is expressly limited to the lesser of the price you have paid for the product or the cost of repair or replacement of any components that malfunction under conditions of normal use. Adam Hall is not liable for any damages caused by the product or the failure of the product, including any lost profits or savings or special, incidental, or consequential damages. Adam Hall is not liable for any claim made by a third party or made by you for a third party. This limitation of liability applies whether damages are sought, or claims are made, under this Limited Warranty or as a tort claim (including negligence and strict product liability), a contract claim, or any other claim, and cannot be rescinded or changed by anyone. This limitation of liability will be effective even if you have advised Adam Hall or an authorized representative of Adam Hall of the possibility of any such damages, but not, however, in the event of claims for damages in connection with personal injuries. This manufacturer‘s warranty grants you specific rights; depending on jurisdiction (nation or state), you may be be entitled to additional claims. You are advised to consult applicable state or national laws for a full determina- tion of your rights.

REQUESTING WARRANTY SERVICE

To request warranty service for the product, contact Adam Hall or the Adam Hall authorized reseller from which you purchased the product.

EC DECLARATION OF CONFORMITY

The equipment marketed by Adam Hall complies (where applicable) with the essential requirements and other relevant specifications of Directives 1999/5/EC (R&TTE), 2004/108/EC (EMC) und 2006/95/EC (LVD). Additional information can be found at www.adamhall.com.15 ITALIANO POLSKI ESPAÑOL FRANCAIS FRANCAIS FRANCAIS FRANCAIS FRANCAIS DEUTSCH ENGLISH MANUFACTURER´S DECLARATIONS:

PROPER DISPOSAL OF THIS PRODUCT

(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. Household users should contact either the retailer where they purchased this product, or their local government office, for details on where and how they can recycle this item in an environmentally friendly manner. Business users should contact their supplier and check the terms and conditions of the purchase contract. This product should not be mixed with other commercial wastes for disposal .

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