Sennheiser HDVA 600 - Pure Audio in Perfection Manual

The HDVA 600 headphone amplifier

The state-of-the-art HDVA 600 headphone amplifier allows you to fully exploit the potential of your high-end headphones. The HDVA 600's consistently symmetrical signal processing and extremely low harmonic distortion ensures an unadulterated and perfect music enjoyment.
The HDVA 600's output circuitry is designed for use with up to four dynamic headphones. Consistent wiring and the use of XLR-4 sockets ensures an excellent channel separation.
You can connect digital audio sources such as CD, DVD and Blu-Rayplayers and analog audio sources such as as tuners, open reel machines and turntables with a corresponding preamplifier to the HDVA 600. Digital sources are connected via their analog outputs. The input selection rotary switch allows you to switch between the connected audio sources.
The headphone amplifier and the Sennheiser HD 800, HD 700 and HD 650 high-end headphones are optimally matched with regard to technology, design and performance characteristics and fulfil the demands of the most discerning audiophile.

Features

• Symmetrical signal processing with exact signal transmission over the entire frequency spectrum and extremely low harmonic distortion
• Can be used with up to four dynamic headphones
• 122 dB dynamic range, wide bandwidth and high transient response due to short signal paths
• Balanced XLR-4 sockets and high-quality ¼" (6.35 mm) jack sockets for connection of headphones
• Connection possibilities:
  • analog inputs: balanced XLR-3, unbalanced RCA
  • analog output: balanced XLR-3
• High-quality components

Package contents

	1 HDVA 600 analog headphone amplifier
	1 quick guide
	1 safety guide
	1 CD ROM with a detailed instruction manual as PDF

Required accessories

A suitable and approved mains cable is available from your Sennheiser service partner.

A list of accessories can be found on the HDVA 600 product page at www.sennheiser.com. For information on suppliers, contact your local Sennheiser partner: www.sennheiser.com > "Service & Support".

Product overview

Overview of the rear panel

7. XLR-3 input socket, balanced (BAL L, R)
8. Input attenuation rotary switch (-GAIN+) for RCA input
9. RCA input socket, unbalanced (UNBAL L, R)
10. XLR-3 output socket, balanced (BAL L, R)
11. Mains socket

The type plate and the electrical data can be found on the base of the product.

Putting the HDVA 600 into operation

Setting up the headphone amplifier

Risk of staining of furniture surfaces!
Varnish or furniture polish may degrade the feet of the product, which could stain your furniture.

• Do not place the product on delicate surfaces; if necessary, use a nonslip pad under the product.

Connecting the headphone amplifier to audio sources

You can connect several audio sources to the headphone amplifier and switch between these connected sources using the input selection rotary switch.

• Switch your audio source off.
• Select a suitable high-quality connection cable for your audio source and, if necessary, a suitable adapter. Please observe the maximum recommended cable length L max.

Connection possibilities of the audio source (OUT)		Connection cable/adapter	L max
	XLR-3 (analog)	2 balanced XLR-3 cables	10 m
	RCA (analog)	Stereo audio cable with 2 RCA plugs on each end	1 m

• Proceed as described in the corresponding chapter.

Integrating the headphone amplifier into an existing connection between devices (daisy-chaining the audio signal)

You can integrate the HDVA 600 into an existing connection between your audio source and an additional device. By way of example of an amplifier as an additional device, this chapter describes how to integrate the HDVA 600 into an existing connection.

• Pull out the plug of the connection cable from the input IN on the amplifier.
• Connect this plug to a suitable input IN on the HDVA 600.
  
• Connect a second connection cable to the input IN on the amplifier and to the output OUT on the HDVA 600.
  
• Use the input selection rotary switch to select the corresponding audio source.

Connecting the headphone amplifier to the mains

Danger of damage to the product!
If you use an unsuitable power supply, this can cause damage to the product.

• Use a suitable mains cable to connect the product to the mains (100 to 240 V AC, 50 or 60 Hz).

• Connect the mains cable to the mains socket and a wall socket.

To disconnect the headphone amplifier from the mains:

• Unplug the mains cable from the wall socket.
  

Using the HDVA 600

Switching the HDVA 600 on/off

Hearing damage due to high volumes!
Listening at high volume levels for long periods can lead to permanent hearing defects.

• Set the volume to a low level before putting on the headphones.
• Do not continuously expose yourself to high volumes.

Connecting headphones

The HDVA 600 features 2 balanced XLR-4 sockets and 2 unbalanced ¼" (6.35 mm) jack sockets for connecting up to 4 headphones. We recommend using high-impedance headphones for an optimal listening experience.

• Connect one or several pairs of headphones.
  

Selecting an audio source

• Set the volume on the headphone amplifier to a low level before switching to a different audio source.

Adjusting the signal level of the RCA input

In order to optimally set the gain of the headphone amplifier, you can use the input attenuation rotary switch (-GAIN+) to adjust the signal level of the RCA input.

• Turn the input attenuation rotary switch (-GAIN+) towards the
  + sign: if the signal is too low or
  - sign: if the signal is overmodulated.
  

Adjusting the volume

• Use the volume control to adjust the volume.
  

Cleaning and maintaining the HDVA 600

Liquids can damage the electronics of the product!
Liquids entering the housing of the device can cause a short circuit and damage the electronics.

• Keep all liquids far away from the product.
• Do not use any cleansing agents or solvents.

If a problem occurs...

If a problem occurs that is not listed in the above table or if the problem cannot be solved with the proposed solutions, please contact your local Sennheiser partner for assistance.
To find a Sennheiser partner in your country, search at www.sennheiser.com > "Service & Support".

Specifications