swissonic HA660 User manual

Thomann GmbH • Hans-Thomann-Straße 1 • 96138 Burgebrach • www.thomann.de • [email protected] DocID: 537575_21.04.2022
Safety instructions
Intended use
This device is meant to be used to amplify analogue audio signals for playback with
headphones. Any other use or use under other operating conditions is considered to
be improper and may result in personal injury or property damage. No liability will be
assumed for damages resulting from improper use.
Danger for children
Ensure that plastic bags, packaging, etc. are disposed of properly and are
not within reach of babies and young children. Choking hazard! Ensure
that children do not detach any small parts from the product. They could
swallow the pieces and choke! Never let children unattended use electri-
cal devices.
Possible hearing damage
When headphones are connected, the device can produce volume that
may cause temporary or permanent hearing impairment. Do not operate
the device continuously at high volume. Turn down the volume immedia-
tely if background noise or hearing failure should occur.
External power supply
The device is powered by an external power supply. The voltage selector
sets the operating voltage. Before switching on the device, ensure that
the input voltage (AC outlet) matches the voltage rating of the device
and that the AC outlet is protected by a residual current circuit breaker.
Failure to do so could result in damage to the device and possibly injure
the user. Unplug the device before electrical storms occur and when it is
unused for long periods of time to reduce the risk of electric shock or re.
Quick Start Guide
This quick start guide contains important information on the safe operation of the
product. Read and follow the safety advice and instructions given. Retain the quick
start guide for future reference. If you pass the product on to others please include
this quick start guide.
Possible staining
The plasticiser contained in the rubber feet of this product may possibly
react with the coating of your surface and after some time cause perma-
nent dark stains. In case of doubt, do not put the rubber feet directly on
the surface and use a suitable underlay if necessary, i.e. felt-pad oor pro-
tectors or similar.
Possible damage due to installation of a wrong fuse
The use of dierent types of fuses can cause serious damage to the unit.
Fire hazard! Only fuses of the same type may be used.
Where to use the product
Never use the product
• in conditions of extreme temperature or humidity
• in extremely dusty or dirty areas
• at locations where the unit can become wet
General handling
• To prevent damage, never use force when handling the product.
• Never immerse the product in water. Just wipe it with a clean dry cloth. Do not use
liquid cleaners such as benzene, thinners or ammable cleaning agents.
Keep foreign substances from the unit!
Keep the device away from containers with liquids. Should any liquid get into the
unit, this could lead to its destruction, re or electric shock. Be sure not to let any
metal objects into the unit.
Connections and operating elements
EN
HA660 Headphone Amp
Features
• Studio headphone amplier
• Connection and selection of three stereo sources
• Selection Mono, Stereo or Mute
• Feed: a ratio of the left channel signal is feed into the right channel signal and vice
versa – three options to select
• Angle: three virtual positions of speakers to select
• M/S Level: three options to select for adjusting the mid/side-level balance
• Input connections:Eingangsanschlüsse: XLR panel socket, 3-pin; 1/4" jack socket,
RCA socket
• Switchable power supply
PUSH PUSH
230
+
ö # ( ) *
, - -
$
. / / .
% & '
ö [INPUT] Rotary control to select the input source XLR, RCA or JACK
(1/4"jack)
# [MODE] Rotary control to select the playback mode of the input signal
$ [FEED] Rotary control to adjust the feed from the left channel to the right
channel and vice versa.
% [ANGLE] Rotary control to adjust the virtual positioning of speakers
& [M/S LEVEL] Rotary control to adjust the mid/side-level balance
' [ON/OFF] Switch the selector to ON to enable the functions of the rotary
controls [FEED], [ANGLE] and [M/S LEVEL].
Switch the selector to OFF to disable the function.
The settings of the rotary controls [FEED], [ANGLE] and [M/S LEVEL]
do not aect the device when the controls are disabled.
( [VOLUME] Rotary control to adjust the volume of the headphone output
) [HEADPHONE] Headphone output, 1/4" jack socket
* [POWER] Main switch. Turns on and o the device.
+ IEC chassis connector for power supply with fuse holder
, [115V/230V] Selector to switch the power supply
- [XLR] XLR panel socket, 3-pin, to connect a signal source, i.e. audio
interface
. [TRS] 1/4" jack socket to connect a signal source, i.e. MP3 player
/ [RCA] RCA socket to connect a signal source, i.e. CD player

Thomann GmbH • Hans-Thomann-Straße 1 • 96138 Burgebrach • www.thomann.de • inf[email protected] DocID: 537575_21.04.2022
EN
For the transport and protective packaging, environmentally friendly materials
have been chosen that can be supplied to normal recycling. Ensure that plastic
bags, packaging, etc. are properly disposed of. Do not just dispose of these ma-
terials with your normal household waste, but make sure that they are collected
for recycling. Please follow the notes and markings on the packaging.
This product is subject to the European Waste Electrical and Electronic Equip-
ment Directive (WEEE) in its currently valid version. Do not dispose of your old
device with your normal household waste. Dispose of this product through an
approved waste disposal rm or through your local waste facility. Comply with
the rules and regulations that apply in your country. If in doubt, consult your
local waste disposal facility.
HA660 Headphone Amp
Technical specications
Input impedance XLR 20kΩ, balanced
10 kΩ, unbalanced
RCA 10 kΩ
TRS 20kΩ, balanced
10 kΩ, unbalanced
Max. input level XLR +23.5dBu
RCA +20dBu
TRS +23.5dBu
Output impedance 3.3Ω
Damping factor 180 @ 40 Ω
Distortion 0.001 %
Signal-to-noise ratio >95dB
Using the product
1. Connect the signal source whose input signals you want to play via
headphones using an XLR cable to [XLR], a 1/4" jack cable to [TRS] or an RCA
cable to [RCA].
Connect the signal source to the corresponding inputs of the right input
INPUTR for playback in mono.
For playback in stereo, connect the signal source to the corresponding inputs
of the right input INPUT R and the left input INPUT L.
2. For the playback of input signals in mono, turn the rotary control [MODE] to
MONO, for the playback of input signals in stereo, turn the rotary control to
STEREO. For muting the headphone output [HEADPHONE], turn the rotary
control to MUTE.
3. Connect the headphone via the 1/4" jack socket to your device.
4. Ensure that the input voltage (AC outlet) matches the voltage rating of the
device and switch the selector [115V/230V], if necessary.
5. Connect the cable of the power adapter to the IEC chassis connector and plug
the power adapter into a properly wired mains outlet.
6. Turn on the device with the main switch [POWER].
7. Set the volume of the headphone output as desired using the rotary control
[VOLUME].
8. Set the feed ratio (MID, LOW, HIGH) as desired using the rotary control [FEED].
According to the ratio, the left channel signal will be feed into the right channel
signal.
9. Set the virtual positioning of speakers (30°, 22°, 40°) using the rotary control
[ANGLE]. According to the angle, the arriving time of the signal is dierent.
According to the interaural dierence, it is possible to create speaker-like
conditions.
10. When using headphones, the mid signal normally is lower than the side signals.
Adjusting the settings with the rotary controls [FEED] and [ANGLE] can amplie
the mid signal intensively.
Use the rotary control [M/S LEVEL] to damp the mid signal in two steps to
counteract the settings made with the rotary controls [FEED] and [ANGLE].
Frequency response 20 Hz - 20 kHz (± 1dB)
Power consumption max. 15 W
Supply voltage 115 V ~ 60 Hz
230 V ~ 50 Hz
Fuse 115 V: 5 mm × 20 mm, 1000 mA, slow blow
230 V: 5 mm × 20 mm, 500 mA, slow blow
Degree of protection IP20
Dimensions (W×H×D) 217mm×41mm×318mm
Weight 2.8 kg
Ambient conditions Temperature range 0 °C . . . 40°C
Relative humidity 20 % . . . 80 %
(non-condensing)