the t.amp tt.amp E4-130 User manual

E4-130, E4-250
power amplier
user manual

Musikhaus Thomann
Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: [phone]
E-mail: [email protected]
Internet: www.thomann.de
10.04.2019, ID: 348232, 348233 (V3)

Table of contents
1 General information................................................................................................................................. 4
1.1 Further information........................................................................................................................... 5
1.2 Notational conventions.................................................................................................................... 6
1.3 Symbols and signal words............................................................................................................... 6
2 Safety instructions..................................................................................................................................... 8
3 Features....................................................................................................................................................... 13
4 Installation and starting up................................................................................................................ 14
5 Connections and operating elements........................................................................................... 19
6 Technical specications....................................................................................................................... 25
7 Plug and connection assignment.................................................................................................... 30
8 Cleaning....................................................................................................................................................... 33
9 Protecting the environment.............................................................................................................. 34
Table of contents
E4-130, E4-250
3

1 General information
This user manual contains important information on the safe operation of the device. Read and
follow all safety notes and all instructions. Save this manual for future reference. Make sure
that it is available to all persons using this device. If you sell the device to another user, be sure
that they also receive this manual.
Our products and user manuals are subject to a process of continuous development. We there‐
fore reserve the right to make changes without notice. Please refer to the latest version of the
user manual which is ready for download under www.thomann.de.
General information
power amplier
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1.1 Further information
On our website (www.thomann.de) you will nd lots of further information and details on the
following points:
Download This manual is also available as PDF le for you to download.
Keyword search Use the search function in the electronic version to nd the topics of
interest for you quickly.
Online guides Our online guides provide detailed information on technical basics
and terms.
Personal consultation For personal consultation please contact our technical hotline.
Service If you have any problems with the device the customer service will
gladly assist you.
General information
E4-130, E4-250
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1.2 Notational conventions
This manual uses the following notational conventions:
The letterings for connectors and controls are marked by square brackets and italics.
Examples: [VOLUME] control, [Mono] button.
1.3 Symbols and signal words
In this section you will nd an overview of the meaning of symbols and signal words that are
used in this manual.
Letterings
General information
power amplier
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Signal word Meaning
DANGER! This combination of symbol and signal word indicates an
immediate dangerous situation that will result in death or
serious injury if it is not avoided.
CAUTION! This combination of symbol and signal word indicates a pos‐
sible dangerous situation that can result in minor injury if it
is not avoided.
NOTICE! This combination of symbol and signal word indicates a pos‐
sible dangerous situation that can result in material and
environmental damage if it is not avoided.
Warning signs Type of danger
Warning – high-voltage.
Warning – danger zone.
General information
E4-130, E4-250
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2 Safety instructions
This device amplies electric audio frequency signals to operate passive speakers. Use the
device only as described in this user manual. Any other use or use under other operating con‐
ditions 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.
This device may be used only by persons with sucient physical, sensorial, and intellectual
abilities and having corresponding knowledge and experience. Other persons may use this
device only if they are supervised or instructed by a person who is responsible for their safety.
DANGER!
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 (e.g. knobs or the like) from
the unit. They could swallow the pieces and choke!
Never let children unattended use electrical devices.
Intended use
Safety
Safety instructions
power amplier
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DANGER!
Electric shock caused by high voltages inside
Within the device there are areas where high voltages may be present. Never
remove any covers.
There are no user-serviceable parts inside.
Do not use the device if covers, protectors or optical components are missing or
damaged.
DANGER!
Electric shock caused by short-circuit
Always use proper ready-made insulated mains cabling (power cord) with a pro‐
tective contact plug. Do not modify the mains cable or the plug. Failure to do so
could result in electric shock/death or re. If in doubt, seek advice from a regis‐
tered electrician.
Safety instructions
E4-130, E4-250
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CAUTION!
Possible hearing damage
With loudspeakers or headphones connected, the device can produce volume
levels that may cause temporary or permanent hearing impairment.
Do not operate the device permanently at a high volume level. Decrease the
volume level immediately if you experience ringing in your ears or hearing
impairment.
NOTICE!
Risk of re
Do not block areas of ventilation. Do not install the device near any direct heat
source. Keep the device away from naked ames.
Safety instructions
power amplier
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NOTICE!
Operating conditions
This device has been designed for indoor use only. To prevent damage, never
expose the device to any liquid or moisture. Avoid direct sunlight, heavy dirt, and
strong vibrations.
Only operate the device within the ambient conditions specied in the chapter
‘Technical specications’ of this user manual. Avoid heavy temperature uctua‐
tions and do not switch the device on immediately after it was exposed to tem‐
perature uctuations (for example after transport at low outside temperatures).
Dust and dirt inside can damage the unit. When operated in harmful ambient
conditions (dust, smoke, nicotine, fog, etc.), the unit should be maintained by
qualied service personnel at regular intervals to prevent overheating and other
malfunction.
Safety instructions
E4-130, E4-250
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NOTICE!
Power supply
Before connecting 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.
NOTICE!
Magnetic elds
The device generates strong magnetic elds that can interfere with the function
of poorly shielded devices. The strongest magnetic elds are directly above and
below the power amplier. Therefore, never place sensitive devices such as pre-
ampliers, radio transmission systems, or tape decks directly above or below the
power amplier. When installing the power amplier into a rack, you should place
it in the lowest position, and further equipment such as pre-ampliers in the
highest position.
Safety instructions
power amplier
12

3 Features
nLow mounting depth of only 408 mm
nOutput power
– the t.amp E4-130 (item no. 348232):
4 × 130 W @ 8 Ω, 4 × 200 W @ 4 Ω
– the t.amp E4-250 (item no. 348233):
4 × 400 W @ 4 Ω, 4 × 250 W @ 8 Ω
nInputs: XLR
nOutputs: NL4 (speakON) connectors for speakers
nProtection circuits: DC, short circuit, overtemperature, limiter, soft start
nDefeatable standby function
Features
E4-130, E4-250
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4 Installation and starting up
Unpack and check carefully there is no transportation damage before using the unit. Keep the
equipment packaging. To fully protect the product against vibration, dust and moisture during
transportation or storage use the original packaging or your own packaging material suitable
for transport or storage, respectively.
Create all connections while the device is o. Use the shortest possible high-quality cables for
all connections. Take care when running the cables to prevent tripping hazards.
DANGER!
Electric shock caused by high voltages at the power amplier output
The output voltages of modern high-performance ampliers may result in death
or serious injury.
Never touch the bare ends of loudspeaker cables when the amplier is on.
Installation and starting up
power amplier
14

NOTICE!
Magnetic elds
The device generates strong magnetic elds that can interfere with the function
of poorly shielded devices. The strongest magnetic elds are directly above and
below the power amplier. Therefore, never place sensitive devices such as pre-
ampliers, radio transmission systems, or tape decks directly above or below the
power amplier. When installing the power amplier into a rack, you should place
it in the lowest position, and further equipment such as pre-ampliers in the
highest position.
The following section explains the possible operating modes of the device. Channels 1 and 3
are marked there with ‘A’ and channels 2 and 4 are marked with ‘B’.
Installation and starting up
E4-130, E4-250
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Depending on the individual application, the amplier can be used in dierent operation
modes:
Stereo mode
Both power amp channels operate independently of each other, each input (A
and B) is amplied by one channel, speakers are connected to both channels,
the volume for both outputs can be controlled separately.
Parallel mode
Both power amp channels amplify the signal from input A, speakers are con‐
nected to both channels, the volume controls of channels A and B are used to
control the volume.
Bridged mode
Available operating modes
Installation and starting up
power amplier
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Both power amp channels are internally wired for providing double the output
power. Only the signal from input A is amplied, speakers are only connected to
the accordingly labelled output. The controls for channel A and channel B are
used to adjust the volume.
The phase of the second or fourth channel is reversed. The speaker must be
operated using a Y-adapter cable to CH1 1+ to 1+ and CH2 1+ to 1–, see gure
below.
Speaker connection in bridged
mode
Installation and starting up
E4-130, E4-250
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On each output of the amplier, the overall impedance resulting from the individual impe‐
dances of the connected speakers must not fall below the minimum allowable impedance of
the amp's output. If you want to connect multiple speakers to one amplier output, note the
following:
nwhen connecting speakers in series, the impedances add up.
nwhen connecting speakers in parallel, the reciprocal value of the total impedance is equal
to the sum of the reciprocal values of the individual impedances.
This means, for example with two speakers with the same impedance: In series connection,
impedance is doubled. In parallel connection, it's halved.
Detailed information on this topic can be found in our online guide ‘Speakers’
(www.thomann.de).
The device has been designed for rack mounting in a standard 19-inch rack; it occupies two
rack units.
Total impedance
Rack mounting
Installation and starting up
power amplier
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5 Connections and operating elements
Front panel
Connections and operating elements
E4-130, E4-250
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1[POWER]
Mains switch. Turns the device on and o. The corresponding LED lights up green when the device is turned on.
In standby mode, the LED lights red. As soon as the unit receives a signal, it switches back to normal mode and the LED
will light up green again.
2[CH-1], [CH-2],
[CH-3], [CH-4]
Volume control for the respective channel
3[PAR] Lights up when the respective channel pair is operated in Parallel mode.
4[BRI] Lights up when the respective channel pair is operated in Bridged mode.
5[SIG] Indicates the presence of an input signal.
Connections and operating elements
power amplier
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