Thomann GmbH • Hans-Thomann-Straße 1 • 96138 Burgebrach • www.thomann.de • [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 firm 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 specifications
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 different.
According to the interaural difference, 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 amplifie
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)
