WHD AMP 4200 User manual

Manual AMP 4200
Valid for 111-425-04-001-00
Version (modifications reseverd)
21.02.2022
Seite 1 of 17
1. Welcome
Thank you for buying this quality WHD roduct. Please read this manual carefully, es ecially the safety
and security information.
Please check that you have the correct manual for your roduct. To do this, lease com are the roduct
code number shown above with the roduct code number dis layed on your roduct.
AMP 4200
Matrix Am lifier with 4 s eaker zones (4-8 ohms/70V/100V)
2. Inventory C ecklist
- AMP 4200
- 19 "bracket
- Device feet ( remounted)
- Power cable
- O eration manual
3. Safety & Security
General Information
In addition to this guidance lease adhere to your own country-s ecific safety & security regulations.
3.1.
How to use t is guide:
Read these instructions carefully before use and use this roduct only in accordance with the instructions
listed here.
3.2. Signs & symbols used
This sign warns of danger of injury and ro erty damage.
This sign warns of injury from electricity.
This sign warns of injury and/or ex losion.
This symbol refers to additional information.
3.3. Signal words and t eir meaning
Danger: Potential severe hysical damage and acute danger.
Warning: Potential electrical shock hysical damage and severe ro erty damage.
Caution: Potential fire hazard hysical damage or ro erty damage as a result of.
Attention:
Advisory notes only.

Manual AMP 4200
Valid for 111-425-04-001-00
Version (modifications reseverd)
21.02.2022
Seite 2 of 17
Warning
The 230V line must be connected only by a rofessional electrician.
The Electrical su ly must be disconnected before working on the device.
Improper andling may void warranty.
4. Product Scope
Matrix Am lifier for 4 s eaker zones (4-8 ohms/70V/100V).
5. Intended use
Indoors
6. Improper use
The device is not suitable for outdoor o eration. The ambient tem erature should not exceed 30 ° C.
7.
Specifications
AMP 4200
Power Su ly
100
-
2
4
0 V AC, 50
/60
Hz
Out ut Power
4 x 200
Watt
rms
Protection Thermal, over-current, over-voltage, short
circuit rotection
Dimensions
(H/
W
/
D
)
44 x 430 x 320 mm
Weight
5
.
5 kg
O erating Tem erature
5 … 30 °C
Input
:
Sensitivity
*)
0
/
+6
dBV (variab
le
)
Im edan
ce
22 kOhm
Ty e 4 x Phoenix, 3Pin
Bzw. 4 x RCA
Trigger: 12VdC (3,5mm mono jack)
Output
:
S eaker
4 x Phoenix, 2Pin
Audio Performance:
Ty e
Class D
Frequency Res onse
20

20kHz ± 1dB
THD+N
> 1% @ 1 kHz, Rated Power
S/N Ratio
≥ 90 dB (A
-
weighted)

Manual AMP 4200
Valid for 111-425-04-001-00
Version (modifications reseverd)
21.02.2022
Seite 3 of 17
Netw
o
rk:
IP User Interface Web-GUI, 10/100 mb s Ethernet
DSP Spe
c
ifi
c
ation
s
:
DSPs
28
-
/56
-
Bit, 50 MIPS
Crossovers 6 dB/oct …24 dB/oct
Equalizer 3-Band IIR er channel
Peaking,
b
ass,
treble
, LFP, HFP, Notch
Limiters
Peak Limiter
Matrix
4 x 4 Matrix/Mixer
Presets
20
reset
bank
s
8.
Prepa
ratory work before installation
Check if all cables (e.g. 230 V AC, antenna and the RCA cable for AUX) are installed in accordance with
installation guidelines, and your desired ort scenario.
Note:
For the installation / configuration via the web interface (web GUI) you need a corres onding end device
(PC / la to / ... etc.) and an Ethernet crossover cable.
9.
Installation and assembly
The device is suitable for 19 “installation (1 U). To do this, mount the enclosed bracket.
Note on 19 "installation:
Leave at least 2 U free above the device to revent overheating.
With the remounted device feet, you can use the AMP 4200 as a standing device.
Notes on temperature development:
Like any am lifier, the device can reach high o erating tem eratures, es ecially under load. Make sure
there is sufficient heat dissi ation. Therefore, mount the device mainly in the technical room or a suitable
distribution cabinet (ventilation / air conditioning) and not directly in furniture.
9.1. Connection of external audio sources
You can connect either 4 mono sources or 2 stereo sources to the device. Use either the Phoenix terminals
(ensure correct olarity!) Or the RCA connectors on the back of the device.
Note on setting t e sensitivity of t e input sources:
For the in ut sensitivity you can choose between +6 dBV and 0 dBV (switch).
For devices with a low out ut level (e.g. smart hones), lease set the switch to 0 dBV. This am lifies the
in ut signal.

Manual AMP 4200
Valid for 111-425-04-001-00
Version (modifications reseverd)
21.02.2022
Seite 4 of 17
9.2. Connection of t e speakers
When connecting the s eakers, you can choose for each zone whether you want to o erate it as a low-
resistance version (4 ohms) or in 100V ELA technology (s eakers with transformer / longer transmission
aths).
Note:
NEVER mix the two technologies in one zone!
Pay attention to the correct olarity when connecting the s eakers!
W en connecting t e speakers, make sure t at t e dimensions are correct.
With 100V technology, the total ower of the s eakers must not exceed 200 W er zone!
With low-resistance connections, the total im edance of the louds eakers must not be less than 4 ohms!
10.
Operation
10.1.
Connections
Connect the 230V cable (2) to the device and switch on the am lifier (3).
Select TRIGGER (T) if needed.
(1) (T) (2)
(3)
10.1.1. Configuration wit out a network (direct access)
For configuration, lug an Ethernet crossover cable into your PC / la to , ... (1) and o en your web
browser.
Enter the following default IP address in the start bar of the browser: 192.168.14.1
Default password:
Username: admin
Password: admin
This o ens the configuration interface.

Manual AMP 4200
Valid for 111-425-04-001-00
Version (modifications reseverd)
21.02.2022
Seite 5 of 17
10.1.
2
. Configuration in t e network
The AMP 4200 is delivered with DHCP. I.e. an IP address is automatically assigned to the device as soon
as it is recognized in the network.
Check the current IP address on the device. (Press on "ADJUST / SET" and turn to the left Device Info)
and enter this in the start bar of the browser:
Example: My IP address: 172.22.0.139
____________
Default password:
Username: admin
Password: admin
This o ens the configuration interface.
Note:
If you access the am lifier via a network, you can also enter http://AMP4200/ in the start bar.
If you have changed the user name / assword in a revious configuration setting, lease enter this
My login details:
User name: _______________________
Password: _______________________
IP address: _______________________
10.1.2. RESET to factory settings
Simultaneously ress the "BACK" button and the "ADJUST / SET" rotary button for more t an 5
seconds. This returns the device to the factory settings.
Note:
A RESET (reset to factory settings) deletes all settings and all saved presets and sets all outputs to 4-8
o ms in the "Qut ut Configurations" menu.

Manual AMP 4200
Valid for 111-425-04-001-00
Version (modifications reseverd)
21.02.2022
Seite 6 of 17
10.2.
C
onfiguration
10.2.1. Home Menu
On the left side you will find the selection of the menu items.
The tabs above the configuration area show the sub-items in ut matrix, DSP, equalizer and storage.
Further to the right you will find the other basic settings of the device, the current heat load as well as the
device name, the IP address of the device and the current software version.
Input Matrix:
In ut signals can be mixed and assigned to s ecific out uts via the in ut matrix.
Four zones with different volume can be created using the gra hic controls.
The bars on the right show the current level while music is laying.

Manual AMP 4200
Valid for 111-425-04-001-00
Version (modifications reseverd)
21.02.2022
Seite 7 of 17
DSP
Configuration
:
A high- ass filter and a sim le bass / tweeter control can be carried out for each out ut.
HPF: Hig -Pass-filter:
Frequencies above the s ecified value are let through, lower frequencies are filtered out.
Tone:
Sound settings for treble and bass.
Limiter, setting and activation:
Power setting of the am lifier out ut.
0 dB: maximum ower / -3 dB: half ower

Manual AMP 4200
Valid for 111-425-04-001-00
Version (modifications reseverd)
21.02.2022
Seite 8 of 17
Equalizer
Configuration
:
Three arametric equalizer bands are available er out ut.
Select the out ut and configure the desired settings.
Freq:
Set the center frequency for a filter for channel 3 for frequency bands.
Gain:
Then set the gain / attenuation factor (-3 dB is half the out ut signal).
Q factor (quality, between 0.4 to 14):
If you select a Q factor of "0.4", a wider frequency range will be rocessed than with a factor of "4". If
only a certain frequency range is to be rocessed as s ecifically as ossible, i.e. narrow-band, lease select
a high Q value.
Peak filter:
Select the filter ty e you want. The choices are: Peak, Bass, Treble, Notch, LPF, HPF. Activate / deactivate
the desired filter via the checkbox.

Manual AMP 4200
Valid for 111-425-04-001-00
Version (modifications reseverd)
21.02.2022
Seite 9 of 17
Preset
Management
:
You can save u to 20 resets on the device and reactivate them.
The resets can also be saved and read back on the PC / la to , ... of the service technician.
Note:
A RESET (reset to factory settings) deletes all settings and all saved presets and sets all outputs to 4-8
o ms in the "Qut ut Configurations" menu.

Manual AMP 4200
Valid for 111-425-04-001-00
Version (modifications reseverd)
21.02.2022
Seite 10 of 17
10.2.2. Output Configuration
Here the out ut im edance can be selected se arately for each channel.
Note:
NEVER mix the two technologies in one zone!
Pay attention to the correct olarity when connecting the s eakers!
W en connecting t e speakers, make sure t at t e dimensions are correct.
With 100V technology, the total ower of the s eakers must not exceed 200 W er zone!
With low-resistance connections, the total im edance of the louds eakers must not be less than 4 ohms!