Sennheiser HDV 820 User Manual
HDV 820
Instruction manual
Digital headphone amplifier
HDV 820 | 1
Contents
Contents
Important safety instructions .......................................................... 3
The HVE 820 headphone amplifier .................................................. 6
Package contents .............................................................................. 7
Product overview ............................................................................... 8
Overview of the front panel ............................................................ 8
Overview of the rear panel .............................................................. 8
Putting the HDV 820 into operation ................................................. 9
Setting up the headphone amplifier .............................................. 9
Connecting the headphone amplifier to audio sources .............. 9
Using the headphone amplifier connected to a Mac/PC ........... 12
Connecting the headphone amplifier to
a power amplifier or to active loudspeakers ............................... 17
Connecting the headphone amplifier to
the power supply system ............................................................... 18
Using the HDV 820 .......................................................................... 19
Switching the HDV 820 on/off ...................................................... 19
Connecting headphones ............................................................... 20
Selecting the audio source ............................................................ 21
Adjusting the signal level of the RCA input (UNBAL) ................ 22
Adjusting the volume ..................................................................... 22
Cleaning and maintaining the HDV 820 ........................................ 23
Installing firmware updates .......................................................... 23
If a problem occurs ... ...................................................................... 24
Specifications .................................................................................. 25
Manufacturer Declarations ............................................................ 27
2 | HDV 820
Important safety instructions
Important safety instructions
1. Read these safety instructions.
2. Keep these safety instructions. Always include these safety
instructions when passing the product on to third parties.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use the product near water.
6. Only clean the product when it is not connected to the power supply system. Clean only with a dry cloth.
7. Ensure circulating ventilation. The product generates heat which
is dissipated through the housing. Install in accordance with the
manufacturer's instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other products that produce heat and do not
expose to direct sunlight.
9. Do not defeat the safety purpose of the polarized or groundingtype plug. A polarized plug has two blades with one wider than
the other. A grounding type plug has two blades and a third
grounding prong. The wide blade or the third prong are provided
for your safety. If the provided plug does not fit into your outlet,
consult an electrician for replacement of the obsolete outlet.
10. Protect the power supply cord from being walked on or pinched,
particularly at plugs, convenience receptacles, and the point
where it exits from the product.
11. Use only attachments/accessories/spare parts supplied or
recommended by Sennheiser.
12. Use only with shelves, racks, or tables that can safely support the
weight the product (see
13. Unplug the product during lightning storms or when unused for
long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is
required when the product has been damaged in any way, such as
power supply cord or plug is damaged, liquid has been spilled or
objects have fallen into the product, when the product has been
exposed to rain or moisture, does not operate normally, or has
been dropped.
15.WARNING: To reduce the risk of fire and electric shock, do not
expose the product to dripping or splashing and ensure that no
objects filled with liquids, such as vases, are placed on the
product.
16. To completely disconnect this product from the AC mains, disconnect the power supply cord plug from the AC receptacle.
17. The plug of the power supply cord shall remain readily accessible.
“Specifications” on page 25).
HDV 820 | 3
Important safety instructions
Hazard warnings on the bottom of the product
The label shown on the left is attached to the bottom of the product.
The symbols on this label have the following meaning:
Presence of uninsulated dangerous voltage within the product's
enclosure that may be of sufficient magnitude to constitute a risk of
fire or electric shock.
Read and follow the safety and operating instructions contained in
this instruction manual.
Never open the product. There is a risk of electric shock when touching live parts. There are no user serviceable parts inside the product.
Refer repairs to an authorized Sennheiser service partner.
Preventing damage to health and accidents
▷ Protect your hearing from high volume levels. Permanent hearing
damage may occur when headphones are used at high volume
levels for long periods of time. Sennheiser headphones sound
exceptionally good at low and medium volume levels.
▷ Keep the product, accessories and packaging parts out of reach
of children and pets to prevent accidents and choking hazards.
▷ Do not use the product in an environment that requires your spe-
cial attention (e.g. when performing skilled jobs).
Preventing damage to the product and malfunctions
▷ Allow the product to stand for at least 2 hours before putting it
into operation. Condensation can form inside the product if it is
moved from a cold environment to a warm environment.
Notes on the use and disposal of storage media
You can use the supplied USB flash drive for storing personal data. If
the flash drive is sold/passed on or disposed of, the data once stored
on it and then deleted using a standard delete method can be recov
ered with special software and be misused.
We therefore recommend using special software for secure deletion
of data to ensure that personal data is not misused.
We recommend backing up the data saved on your flash drive regularly. Sennheiser does not accept liability for damage or loss of data.
-
4 | HDV 820
Important safety instructions
HDV 820
UPDATE
Notes on driver and firmware updates
We recommend using the latest DAC (digital-to-analog converter)
firmware for your headphone amplifier and the latest driver for your
operating system (MacOS), Windows).
DAC firmware and driver updates can be downloaded free of charge
from the Internet at www.sennheiser.com/download or can be
obtained from your Sennheiser partner.
Intended use/Liability
This amplifier for dynamic headphones has been designed for music
reproduction from analog and digital high-end devices such as
SACD, DVD-A, Blu-ray or CD players or for the reproduction of highresolution music files from your Mac or PC.
This product is intended for private domestic use only. It is not
intended for commercial use.
It is considered improper use when this product is used for any application not named in this instruction manual.
Sennheiser is not liable for damages to USB devices that are not consistent with the USB specifications.
Sennheiser does not accept liability for damage arising from abuse
or misuse of this product and its attachments/accessories.
Before putting the product into operation, please observe the
respective country-specific regulations.
HDV 820 | 5
The HVE 820 headphone amplifier
The HVE 820 headphone amplifier
The HDV 820 headphone amplifier is the result of Sennheiser's many
years of audio expertise and the perfect complement to its high-end
audiophile headphone range for the ultimate in sound quality and
performance. The HDV 820 offers consistently symmetrical signal
processing and extremely low harmonic distortion to ensure
unadulterated and perfect music enjoyment. Designed and
manufactured in Germany, the HDV 820 continues the success story
of its predecessor, the HDVD 800, and convinces with its black
design and enhanced components that provide even greater
precision and sound quality.
The HDV 820 is equipped with a high-resolution ESS SABRE32 DAC
(digital-to-analog converter) that has a resolution of 32 bits and a
sampling rate of up to 384 kHz. The amplifier can also process
DSD256 files with a frequency of up to 12.3 MHz and features various
audio inputs and outputs, allowing you to choose the optimum
connection for your audio devices and headphones. The HDV 820
reproduces both digital and analog audio sources with superb sound
quality.
Fittingly for a product that gives such an incredibly pure sound
experience, the HDV 820 also inspires by its design. With its black
anodized housing and white LEDs, the HDV 820 perfectly matches
Sennheiser's HD 800 S flagship high-end headphones to deliver the
ultimate audiophile listening experience.
Features
• Symmetrical signal processing with exact signal transmission
over the entire frequency spectrum and extremely low harmonic
distortion
• Dynamic range of more than 120 dB, wide bandwidth and high
transient response due to short signal paths
• Outstanding ESS SABRE
resolution of 32 bits and a sampling rate of up to 384 kHz
• Automatic adjustment of the sampling rate (44.1 kHz to 384 kHz)
• USB Audio (up to 32 Bit/384 kHz and up to DSD256)
• Can be used with up to four dynamic headphones
• 3 balanced headphone sockets (2 x 4.4 mm Pentaconn jack
socket, 1 x XLR-4 socket)
•High-quality XLR-3/¼"
tion of unbalanced headphones
• High flexibility due to different connection possibilities:
– Digital inputs: S/PDIF coaxial/optical, USB
– Analog inputs: balanced XLR-3, unbalanced RCA
•Analog output: balanced XLR-3, level adjustable (for connection
of active loudspeakers or a power amplifier)
• Engineered and handcrafted in Germany
32
DAC (digital-analog converter) with a
(6.35 mm) jack combo socket for connec-
6 | HDV 820
Package contents
Safety guide
HVE 820 headphone amplifier
Power supply cable
(depending on region; EU, UK, US, CN, KR)
Package contents
Quick guide
Quick guide
Safety guide
Microfiber cloth
USB flash drive (SD-U16L version) with
instruction manual (as PDF file) and driver software
for Microsoft Windows operating systems
A list of accessories can be found on the HDV 820 product page
at www.sennheiser.com. Contact your local Sennheiser
partner: www.sennheiser.com > “Sales Partner”.
HDV 820 | 7
Product overview
Product overview
Overview of the front panel
1
2
3
1 On/off button with LED
2 Headphone output,
XLR-3/¼" (6.35 mm) jack
combo socket, unbalanced
3 Headphone output,
XLR-4 socket, balanced
4 Headphone outputs,
4.4 mm Pentaconn jack socket,
balanced
4
5
6
9
5 DSD reproduction LED
6 Input selection LED
7 Input selection rotary
switch
8 Volume control
9 Type plate (bottom)
7
8
Overview of the rear panel
A
- GAIN +
B
R
0
BAL UNBAL BALOPT USB
ANALOG IN
0 XLR-3 input socket,
balanced (
BAL R, L)
A Input gain rotary switch
(
–GAIN+) for RCA input
B RCA input socket,
unbalanced (
UNBAL L, R)
C
COAX
DIGITAL IN
E
D
C S/PDIF input,
optical (
D S/PDIF input,
coaxial (
E USB input,
Type B (
F XLR-3 output socket,
balanced (
G IEC mains socket
~100-240 VAC 50/60 Hz
ANALOG OUT
OPT)
COAX)
USB)
BAL R, L)
F
G
LRLR
~100-240 VAC 50/60Hz
8 | HDV 820
Putting the HDV 820 into operation
B
Putting the HDV 820 into
operation
Setting up the headphone amplifier
CAUTION
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
non-slip pad under the product.
▷ Place the headphone amplifier on a flat, horizontal surface.
▷ Ensure circulating ventilation. The headphone amplifier gener-
ates heat which is dissipated through the housing.
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 selec
tion rotary switch.
▷ Switch your audio sources off before connecting the headphone
amplifier.
▷ Select a suitable high-quality connection cable for your audio
source. For an optimal listening experience, Sennheiser recommends using cables with a length of 3 m.
▷ To connect the headphone amplifier to your audio source, refer to
the connection diagram suitable for your audio source (see the
following chapters):
Connection possibility
of the audio source (OUT)
USB (USB)
A
Optical (OPT) Optical cable 10
DIGITAL
Coaxial
C
(
COAX)
Connection cable
USB 2.0 certified cable
with Type A and Type B
connector
Coaxial cable (75 )10
Page
-
10
ANALOG
RCA (UNBAL)
D
XLR-3 (
E
BAL)
Stereo audio cable
with 2 RCA connectors
at each end
2 balanced XLR-3
cables
11
12
HDV 820 | 9
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