Topp Music Gear THA-4 User manual

4-CHANNEL HEADPHONE AMPLIFIER
THA-4
THA
THA

THA THA

1.INTRODUCTION.................................................4
2.FEATURES.........................................................4
3.USEFUL TIPS .....................................................4
4.CONTROL ELEMENTS..........................................8
5.CONNECTION DIAGRAM....................................10
6.WIRING CONNECTION.......................................11
7. BLOCK DIAGRAM.............................................12
8.TECHNICAL SPECIFICATIONS..............................13
9.GUARANTEE.....................................................14
10.NOTES...........................................................15
THA THA

*Mountable in a 1/2 Rack Unit
*4 individual headphone channels
*Input gain control, and individual output gain control
*Up to 2 headphone outputs per channel for a total of 8 headphones
*Direct In and Headphone Output on the front panel for easy operation,
when mounted in a rack
*Input and Output Level Led Meter
*Main Outputs for linking additional headphone amplifiers
*High-end quality even at high volume levels
*Exceptionally rugged construction ensures long life and durability
*Universal and professional headphone amplification system for studio
and stage application
*Manufactured under QS9000 certified quality system
THA-4
Thank you for purchasing the THA-4 4-channel headphone amplifier. THA-4
is really ideal for
Please read this manual carefully so you can take advantages of all features
of THA-4 headphone amplifier.
Thank you again for making the right choice in purchasing the TOPP PRO
MUSIC GEAR.
applications such as recording, broadcast and Live events.
It is a very flexible tool allowing personal headphone mix for up to four
musicians.
Switches channel to mono
Mode
Input level
8-digit LED display:-12/-6/0/+6/+12/+18dBu(clip)
AC 18V/1000mA
4-digit LED display: -24/0/+12/+18dBu(clip)Output level
AC input
Audio Input
Connectors
Type
Impedance
Max.input level
XLR and 1/4" jack
HF filtered, servo balanced input
50 kOhms balanced, 25 kOhms unbalanced
+21 dBu balanced and unbalanced(unity gain)
AUXINand
DIRECT IN input
Connectors
Type
Impedance
Max.gain
(CH GAIN & INPUT GAIN)
Max input level
1/4" TRS (tip=left, ring=right, sleeve=ground)
Unbalanced
25 kOhms Unbalanced
+6 dBu
+21 dBu unbalanced(unity gain)
Audio Output Connectors
Max. output level
XLR and 1/4" Jack
+21 dBu Balanced and Unbalanced
System
Specifications
Frequency response
SNR
THD
10 Hz to 20 kHz,+/-2 dB
>90 dB, Unweighted, 22 Hz to 22 kHz
0.01% typ.@0 dBu, 1kHz
Headphone Out
+21 dBm
100 Ohms
Max.out
Min.output impedance
+12dB(MAIN IN:0dBu, input & output gain max)
Function Controls
Max voltage gain
-76dB@1KHz(CH GAIN & MAIN GAIN at max,
other at min, SW at up)
Indicators
Noise(bus noise)
Power Supply
Input level
Main input level
Output level per CH
Output level per CH
Balanced
L/R
PHYSICAL
4 CHANNEL HEADPHONE AMPLIFIER
Model THA-4
1.9kg
(WxDxH) 483mmx197mmx44mmDimensions
Net weight
THA THA

HOOKUP DIAGRAM
DIGITAL MIXER
THA-4
LEVEL
CLIP
+12
0
24
BAL
L
R
0
0
+6
3
INPUT GAIN
+18
+12
+6
0dBu
6
12
LEVEL
DIRECT IN
CH1 CH2 CH3 CH4
MONO/ST
0
+6
3
0
+6
3
0
+6
3
0
+6
3
LEVEL
CLIP
+12
0
24
LEVEL
CLIP
+12
0
24
LEVEL
CLIP
+12
0
24
MONO/STMONO/ST
MONO/ST
AUX IN AUX IN AUX IN AUX IN
MAIN INPUT
L
R
L
R
MAIN OUTPUT
AC INPUT:
18V ~ 50/60Hz 1000mA
THA THA

DIGITAL MIXER
AUX SEND
12
3
12
3
6-CHANNELMIXING CONSOLE
WITHDIGITAL EFFECTS
THA-4
LEVEL
CLIP
+12
0
24
BAL
L
R
0
0
+6
3
INPUT GAIN
+18
+12
+6
0dBu
6
12
LEVEL
DIRECT IN
CH1 CH2 CH3 CH4
MONO/ST
0
+6
3
0
+6
3
0
+6
3
0
+6
3
LEVEL
CLIP
+12
0
24
LEVEL
CLIP
+12
0
24
LEVEL
CLIP
+12
0
24
MONO/STMONO/ST
MONO/ST
AUX IN AUX IN AUX IN AUX IN
MAIN INPUT
L
R
L
R
MAIN OUTPUT
AC INPUT:
18V ~ 50/60Hz 1000mA
MIXER
THA THA

12CHANNELCOMPACT INTEGRATED LIVE SOUND MIXER
WITHDIGITAL EFFECTS
MIXER
THA-4
LEVEL
CLIP
+12
0
24
BAL
L
R
0
0
+6
3
INPUT GAIN
+18
+12
+6
0dBu
6
12
LEVEL
DIRECT IN
CH1 CH2 CH3 CH4
MONO/ST
0
+6
3
0
+6
3
0
+6
3
0
+6
3
LEVEL
CLIP
+12
0
24
LEVEL
CLIP
+12
0
24
LEVEL
CLIP
+12
0
24
MONO/STMONO/ST
MONO/ST
AUX IN AUX IN AUX IN AUX IN
MAIN INPUT
L
R
L
R
MAIN OUTPUT
AC INPUT:
18V ~ 50/60Hz 1000mA
1. RACK MOUNTING
SOME FINIAL NOTES
Enjoy the sound!
1- Speakers should be placed in a position that allows for unobstructed sound
projection. In any instances is beneficial for speakers to be elevated on
tripod stands to achieve axi u dispersion and reach.
2- Use professional advice or service when hanging and installing speakers.
Please take precautions to secure the to prevent the fro falling and
hurting so eone. Care should be taken as to not da age the cabinet or its
co ponents. Please co ply with all pertinent Regulations.
3- Use quality cables. Using quality cables will ensure the best possible sound.
4- For best results atch the speakers to a good a plifier that atches the
wattage and i pedance of your speakers. Proper a plification power results
in good quality audio and longer co ponent life. Check out the power
require ent for your cabinet.
5- Avoid pointing a icrophone directly at an a plified speaker doing so, could
cause feedback possibly da aging speaker co ponents and your hearing.
THA THA

3 1 2 4
BAL
L
R
0
0
+6
3
INPUT GAIN
+18
+12
+6
0dBu
6
12
LEVEL
DIRECT IN
LEVEL
CLIP
+12
0
24
CH1
0
+6
3
MONO/ST
AUX IN
5
6
7
8
9
lena pop
Rear Panel
Please use the18 VAC AC adapter provided to connect your THA-4 You can
follow. The illustration in detail.
10 131211
MAIN INPUT
L
R
L
R
MAIN OUTPUT
AC INPUT:
18V ~ 50/60Hz 1000mA
THA THA