HP4E - Receiver AKG - Free user manual and instructions

Product Type	4-Channel Headphone Amplifier (Receiver)
Brand	AKG
Model	HP4E
Channels	4 independent stereo channels
Input Connectors	Two pairs of stereo or mono (L/Mono, R) inputs per channel (A and B)
Output Connectors	Headphone jacks (1/4" TRS) for each channel
Volume Control	Individual rotary volume knob per channel
Power Supply	External AC adapter (included)
Power Consumption	Approximately 15W
Dimensions (W x D x H)	150 x 120 x 46 mm (5.9 x 4.7 x 1.8 in)
Weight	0.5 kg (1.1 lbs)
Input Impedance	10 kΩ (typical)
Output Impedance	10 Ω (typical)
Frequency Response	10 Hz – 40 kHz ±0.5 dB
Signal-to-Noise Ratio	>100 dB (A-weighted)
THD + Noise	<0.01% (1 kHz, 1V output)
Crosstalk	>70 dB (1 kHz)
Maximum Output Power	150 mW per channel into 32 Ω
Operating Temperature	0°C to 40°C (32°F to 104°F)
Regulatory Compliance	FCC Class B, CE
Cleaning Instructions	Wipe with a dry, soft cloth. Do not use liquids or solvents.
Safety Warnings	Do not spill liquids on the device. Place no containers with liquid on top.
Spare Parts & Repairability	Contact AKG customer service or visit www.akg.com for authorized service.
General Information	Manufactured by Harman International Industries. Specifications subject to change.

Frequently Asked Questions - HP4E AKG

How do I connect headphones to the AKG HP4E?

Plug your headphones into one of the four HEADPHONE jacks on the front panel. Each channel has its own volume control.

What types of inputs does the HP4E accept?

The HP4E has two input sockets per channel labeled A and B. Each accepts either a mono (L/Mono and R) or stereo signal via 1/4' TS/TRS connectors.

Can I adjust the volume for each headphone independently?

Yes, each of the four channels has a dedicated VOLUME knob (0-10) for independent level control.

How do I power on the device?

Connect the included AC adapter to the POWER input on the rear panel, then press the POWER button on the front.

What is the difference between inputs A and B?

Inputs A and B allow you to connect two different audio sources to the same channel. You can select which input to use (likely via a switch, though the manual shows A/B labeling).

Can I use balanced headphones with the HP4E?

The HP4E has standard 1/4' TRS outputs for unbalanced headphones. For balanced use, you would need an adapter or a different amplifier.

Is there a mono/stereo switch for each channel?

The input sockets are labeled LEFT (MONO) and RIGHT, suggesting you can feed a mono signal to both sides by plugging into the LEFT (MONO) jack.

Can I connect the HP4E to a mixing console?

Yes, the HP4E accepts line-level inputs from mixers, audio interfaces, or other sources via 1/4' TS cables.

What should I do if there is no sound?

Check that the power is on, the volume is turned up, headphones are fully inserted, and the input source is active. Verify cables and connections.

How do I clean the HP4E?

Use a dry, soft cloth to wipe the exterior. Do not use any liquids or cleaning agents. Ensure the device is unplugged before cleaning.

USER MANUAL HP4E AKG

PRODUKTÜBERSICHT / PRODUCT OVERVIEW / VUE D'ENSEMBLE DU PRODUIT / VISTA GENERAL DEL PRODUCTO

ERSTE SCHRITTE / GETTING STARTED/ PREMIERS PAS / PRIMEROS PASOS

FCC Statement

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

—Reorient or relocate the receiving antenna.

—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Shielded cables and I/O cords must be used for this equipment to comply with the relevant FCC regulations. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.

Do not spill any liquids on the equipment.

Do not place any containers containing liquid on the device.

Further information can be found in the operating instructions as a PDF download from www.akg.com. This product conforms to the standards listed in the Declaration of Conformity. To order a free copy of the Declaration of Conformity, visit www.akg.com or contact [e-mail].

Printed in China (P.R.C.)

© 2016 HARMAN International Industries, Incorporated. All rights reserved. AKG is a trademark of AKG Acoustics GmbH, registered in the United States and/or other countries. Features, specifications and appearance are subject to change without notice.