E-400, E-800, E-1200,
E-1500
power amplier
user manual
Musikhaus Thomann
Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: +49 (0) 9546 9223-0
E-mail: info@thomann.de
Internet: www.thomann.de
10.07.2019, ID: 173888_173889_460282_460283
Table of contents
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........................................................................................... 18
6 Technical specications....................................................................................................................... 29
7 Plug and connection assignment.................................................................................................... 34
8 Cleaning....................................................................................................................................................... 39
9 Protecting the environment.............................................................................................................. 40
E-400, E-800, E-1200, E-1500
3
General information
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.
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4
1.1 Further information
General 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
Online guides
Personal consultation For personal consultation please contact our technical hotline.
Service
Use the search function in the electronic version to nd the topics of
interest for you quickly.
Our online guides provide detailed information on technical basics
and terms.
If you have any problems with the device the customer service will
gladly assist you.
E-400, E-800, E-1200, E-1500
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General information
1.2 Notational conventions
This manual uses the following notational conventions:
Letterings
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.
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power amplier
General information
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.
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Safety instructions
2 Safety instructions
Intended use
Safety
8
This device amplies 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 sucient 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.
power amplier
Safety instructions
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.
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Safety instructions
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.
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power amplier
Safety instructions
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.
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.
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Safety instructions
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 amplier. Therefore, never place sensitive devices such as pre-
ampliers, radio transmission systems, or tape decks directly above or below the
power amplier. When installing the power amplier into a rack, you should place
it in the lowest position, and further equipment such as pre-ampliers in the
highest position.
NOTICE!
Possible damage due to installation of a wrong fuse
The use of dierent types of fuses can cause serious damage to the unit. Fire
hazard!
Only fuses of the same type may be used.
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power amplier
3 Features
Features
n Low installation depth
n 2 × 190 W @ 4 Ω, 2 × 120 W @ 8 Ω (item no. 173888)
n 2 × 500 W @ 4 Ω, 2 × 350 W @ 8 Ω (item no. 173889)
n 2 × 1200 W @ 4 Ω, 2 × 800 W @ 8 Ω (item no. 460282)
n 2 × 1430 W @ 4 Ω, 2 × 950 W @ 8 Ω (item no. 460283)
n Inputs: XLR, phone jack (balanced) and RCA (only for item no. 173888)
n Outputs: Speaker Twist and terminal clamps for speakers
n Protection circuits: DC, short circuit, over-temperature, limiter
n Defeatable standby function
E-400, E-800, E-1200, E-1500
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Installation and starting up
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 amplier output
The output voltages of modern high-performance ampliers may result in death
or serious injury.
Never touch the bare ends of loudspeaker cables when the amplier is on.
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power amplier
Installation and starting up
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 amplier. Therefore, never place sensitive devices such as pre-
ampliers, radio transmission systems, or tape decks directly above or below the
power amplier. When installing the power amplier into a rack, you should place
it in the lowest position, and further equipment such as pre-ampliers in the
highest position.
E-400, E-800, E-1200, E-1500
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Installation and starting up
Possible operation modes
Stereo mode
Parallel mode
Bridged mode
Depending on the individual application, the amplier can be used in dierent operation
modes:
The two amplier channels operate independently of one another, either
channel (A and B) is amplied and connected to loudspeakers, the volume can
be controlled separately for the two outputs.
The two amplier channels receive the same input signal from channel A and
loudspeakers are connected to each amplier, the volume is controlled via the
control knob for channel A.
The two amplier channels are internally connected in such a way that twice
the output power is available. Only the input signal from channel A is amplied
and loudspeakers are connected only to the correspondingly marked output.
The volume is controlled via the control knob for channel A.
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16
Installation and starting up
For each output of the amplier, the total impedance resulting from the loudspeakers con‐
nected to it must not be below the allowed minimal impedance of the amplier output. If you
connect more than one loudspeaker to an amplier output, please note the following:
n If the loudspeakers are connected in a series, the individual impedances will be added up.
n If the loudspeakers are connected in parallel, the reciprocal of the total impedance equals
the sum of the reciprocals of the individual impedances.
Example: If you have two loudspeakers with the same impedance, their impedance doubles if
they are connected in a series, their impedance halves if they are connected in parallel.
For detailed information related to this topic please refer to our Online Guide ‘PA Speakers’
www.thomann.de).
(
Rack mounting
The device has been designed for rack mounting in a standard 19-inch rack; it occupies two
rack units.
E-400, E-800, E-1200, E-1500
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Connections and operating elements
5 Connections and operating elements
Front panel
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power amplier
1 [POWER]
Mains switch. Turns the device on and o.
2 LED panel
[SIG] Indicates the presence of an input signal.
[CLIP] Lights under the following conditions:
n Channel overload
Reduce in this case the volume until the LED goes out.
n Output short circuit
Turn o the device immediately, correct the short circuit and turn on the device again.
[PRO] Lights under the following conditions:
n Three to ve seconds after switching on or o when the device is in an unstable condition.
n The temperature of the amplier blocks has reached 85°C.
n One or more protection circuits have been triggered, or the device is faulty.
[POWER] 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.
Connections and operating elements
E-400, E-800, E-1200, E-1500
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Connections and operating elements
[PAR] Lights when the device is operated in parallel mode.
[BR] Lights when the device is operated in bridged mode.
3, 4 [CHANNEL A],
[CHANNEL B]
20
Volume control for the respective channel
power amplier
Rear panel E-400
Connections and operating elements
E-400, E-800, E-1200, E-1500
21
Connections and operating elements
5 IEC chassis plug with fuse holder
6 [ON] [OFF] [STANDBY]
On / o switch for standby function. If the standby function is enabled, the device automatically switches to standby
mode after fteen minutes without any input signal.
7, 8 [OUTPUT]
Output channel B, A
n Speaker Twist chassis connector for speaker output (1+, 2+: positive; 1–, 2–: negative)
n Screw terminals
9 [GROUND] [LIFT]
Ground / lift switch. If hum is caused by a ground loop, you can use this switch to disconnect the connection
between the earth pin of the device and the signal ground of the device.
10 [LIMITER]
Limits the output level so that the maximum distortion is 5%.
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power amplier
11 Selector switch for operating mode
n [PAR]: Parallel mode
n [STE]: Stereo mode
n [BR]: Bridged mode
12 Selector switch for input sensitivity
13, 14 [INPUT]
Input channel B, A
n XLR chassis socket
n ¼-inch (6.35-mm) jack (balanced or unbalanced)
n RCA socket
Connections and operating elements
E-400, E-800, E-1200, E-1500
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Connections and operating elements
Rear panel E-800
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power amplier
15 Power cord
16 [ON] [OFF] [STANDBY]
On / o switch for standby function. If the standby function is enabled, the device automatically switches to standby
mode after fteen minutes without any input signal.
17 [BREAKER]
Resettable fuse. The fuse switches o when the power consumption of the power amplier is too high. Once the
problem is resolved, the fuse is automatically reset and the device is ready for use again. The switch can be used to
force the reset.
18, 19 [OUTPUT]
Output channel B, A
n Speaker Twist chassis connector for speaker output (1+, 2+: positive; 1–, 2–: negative)
n Screw terminals
20, 22 [INPUT]
Input channel B, A
n XLR chassis socket
n ¼-inch (6.35-mm) jack (balanced or unbalanced)
Connections and operating elements
E-400, E-800, E-1200, E-1500
25
Connections and operating elements
21 [GROUND] [LIFT]
Ground / lift switch. If hum is caused by a ground loop, you can use this switch to disconnect the connection
between the earth pin of the device and the signal ground of the device.
23 [LIMITER]
Limits the output level so that the maximum distortion is 5%.
24 Selector switch for input sensitivity
25 Selector switch for operating mode
n [Parallel]: Parallel mode
n [Stereo]: Stereo mode
n [Bridge]: Bridged mode
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power amplier
Rear panel E-1200, E-1500
Connections and operating elements
E-400, E-800, E-1200, E-1500
27
Connections and operating elements
27 IEC panel plug
28, 29 [OUTPUT]
Output channel B, A
n Speaker Twist chassis connector for speaker output (1+, 2+: positive; 1–, 2–: negative)
n Screw terminals
30, 32 [INPUT]
Input channel B, A
n XLR chassis socket (male)
n XLR chassis socket (female)
31 Selector switch for operating mode
n [PAR]: Parallel mode
n [STR]: Stereo mode
n [BRI]: Bridged mode
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power amplier
Technical specications
6 Technical specications
E-400, E-800
E-400 (item no. 173888) E-800 (item no. 173889)
Amp class AB H, 2 steps
Input connections 1 × IEC panel plug C14 2 × XLR socket, 3-pin
2 × XLR socket, 3-pin
2 × 1/4" phone socket 2 × 1/4" phone socket
2 × RCA socket
Input impedance 20 kΩ (balanced) 20 kΩ (balanced)
10 kΩ (unbalanced) 10 kΩ (unbalanced)
Output connections 2 × Speaker Twist panel connector 2 × Speaker Twist panel connector
4 × terminal clamp 4 × terminal clamp
Output power 8 Ω, stereo: 2 × 120 W RMS 8 Ω, stereo: 2 × 350 W RMS
E-400, E-800, E-1200, E-1500
29
Technical specications
E-400 (item no. 173888) E-800 (item no. 173889)
4 Ω, stereo: 2 × 190 W RMS 4 Ω, stereo: 2 × 500 W RMS
Frequency response 20 Hz … 20 kHz (0 / –3 dB), ±1 dB 20 Hz … 20 kHz (0 / –3 dB), ±1 dB
Signal-to-noise ratio > 100 dB (A-weighted) > 100 dB (A-weighted)
Total harmonic distortion (THD) < 0.03 %, @ 50 % of maximum output
power
< 0,03 %, @ 50 % of maximum
output power
Sensitivity 0.77 V / 26 dB / … 1.4 V 0.77 V / 26 dB / … 1.4 V
Gain 34 dB (0.77 V), 28 dB (1.4 V) 36 dB (0.77 V), 31 dB (1.4 V)
Power consumption Typical current draw depending on the output power level (RMS value
A
). All values based on a 230 V mains voltage and a 1 kHz input signal
RMS
at 0 dB (sine).
2 × 190 W @ 4 Ω 2 × 500 W @ 4 Ω
2 × 120 W @ 8 Ω 2 × 350 W @ 8 Ω
Operating supply voltage
230 V 50 Hz 230 V 50 Hz
Fuse 5 mm × 8 mm, 8 A, 250 V, fast-acting Resettable fuse 10 A
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Technical specications
E-400 (item no. 173888) E-800 (item no. 173889)
Dimensions (W × H × D) 482 mm × 88 mm × 317 mm 482 mm × 88 mm × 375 mm
Weight 8.3 kg 11.3 kg
Ambient conditions Temperature range 0 °C…40 °C
Relative humidity 50 %, non-condensing
E-1200, E-1500
E-1200 (item no. 460282) E-1500 (460283)
Amp class H H
Input connections 1 × IEC panel plug C14 1 × IEC panel plug C14
4 × XLR socket, 3-pin 4 × XLR socket, 3-pin
Input impedance 20 kΩ (balanced) 20 kΩ (balanced)
10 kΩ (unbalanced) 10 kΩ (unbalanced)
Output connections 2 × Speaker Twist panel connector 2 × Speaker Twist panel connector
E-400, E-800, E-1200, E-1500
31
Technical specications
E-1200 (item no. 460282) E-1500 (460283)
4 × terminal clamp 4 × terminal clamp
Output power 8 Ω, stereo: 2 × 800 W RMS 8 Ω, stereo: 2 × 950 W RMS
4 Ω, stereo: 2 × 1200 W RMS 4 Ω, stereo: 2 × 1430 W RMS
Frequency response 20 Hz … 20 kHz (1.7 / -0.8 dB), ±1 dB 20 Hz … 20 kHz (1.7 / -0.8 dB),
±1 dB
Signal-to-noise ratio ≥ 100 dB ≥ 100 dB
Total harmonic distortion (THD) ≤ 0.05 %, @ 50 % of maximum output
power
≤ 0.05 %, @ 50 % of maximum
output power
Sensitivity 0.77 V / 26 dB / … 1.4 V 0.77 V / 26 dB / … 1.4 V
Gain 41 dB 41 dB
Power consumption Typical current draw depending on the output power level (RMS value
A
). All values based on a 230 V mains voltage and a 1 kHz input signal
RMS
at 0 dB (sine).
2 × 190 W @ 4 Ω 2 × 500 W @ 4 Ω
power amplier
32
Technical specications
E-1200 (item no. 460282) E-1500 (460283)
2 × 120 W @ 8 Ω 2 × 350 W @ 8 Ω
Operating supply voltage
Dimensions (W × H × D) 482 mm × 88 mm × 362 mm 482 mm × 88 mm × 362 mm
Weight 17.0 kg 17.6 kg
Ambient conditions Temperature range 0 °C…40 °C
Relative humidity 50 %, non-condensing
115/230 V 50/60 Hz 115/230 V 50/60 Hz
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Plug and connection assignment
7 Plug and connection assignment
Introduction
Balanced and unbalanced trans‐
mission
34
This chapter will help you select the right cables and plugs to connect your valuable equip‐
ment in such a way that a perfect sound experience is ensured.
Please note these advices, because especially in ‘Sound & Light’ caution is indicated: Even if a
plug ts into the socket, an incorrect connection may result in a destroyed power amp, a short
circuit or ‘just’ in poor transmission quality!
Unbalanced transmission is mainly used in semi-professional environment and in hi use.
Instrument cables with two conductors (one core plus shielding) are typical representatives of
the unbalanced transmission. One conductor is ground and shielding while the signal is trans‐
mitted through the core.
Unbalanced transmission is susceptible to electromagnetic interference, especially at low
levels, such as microphone signals and when using long cables.
In a professional environment, therefore, the balanced transmission is preferred, because this
enables an undisturbed transmission of signals over long distances. In addition to the conduc‐
tors ‘Ground’ and ‘Signal’, in a balanced transmission a second core is added. This also transfers
the signal, but phase-shifted by 180°.
power amplier
1/4" TS phone plug (mono,
unbalanced)
1/4" TRS phone plug (mono, bal‐
anced)
Plug and connection assignment
Since the interference aects both cores equally, by subtracting the phase-shifted signals, the
interfering signal is completely neutralized. The result is a pure signal without any noise inter‐
ference.
1 Signal
2 Ground, shielding
1 Signal (in phase, +)
2 Signal (out of phase, –)
3 Ground
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Plug and connection assignment
1/4" TRS phone plug (stereo,
unbalanced)
XLR plug (balanced)
1 Signal (left)
2 Signal (right)
3 Ground
1 Ground, shielding
2 Signal (in phase, +)
3 Signal (out of phase, –)
4 Shielding on plug housing (option)
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power amplier
XLR plug (unbalanced)
Speaker Twist chassis connector
Plug and connection assignment
1 Ground, shielding
2 Signal
3 Bridged to pin 1
1, + Signal 1 (in phase)
1, – Signal 1 (out of phase)
2, + Signal 2 (in phase)
2, – Signal 2 (out of phase)
E-400, E-800, E-1200, E-1500
37
Plug and connection assignment
RCA connection
Drawing and table indicate the pin assignment of an RCA plug.
1 Signal
2 Ground, shielding
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38
8 Cleaning
Cleaning
Fan grids
The fan grids of the device must be cleaned of any contamination, such as dust, etc. on a reg‐
ular basis. Before cleaning, switch o the device and disconnect mains-operated devices from
the mains. Only use pH-neutral, solvent-free and non-abrasive cleaning agents. Clean the unit
with a slightly damp lint-free cloth.
E-400, E-800, E-1200, E-1500
39
Protecting the environment
9 Protecting the environment
Disposal of the packaging mate‐
rial
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 materials with your normal household waste, but make sure that
they are collected for recycling. Please follow the notes and markings on the packaging.
Disposal of your old device
This product is subject to the European Waste Electrical and Electronic Equipment Directive
(WEEE) in its currently valid version. Do not dispose with your normal household waste.
Dispose of this device through an approved waste disposal rm or through your local waste
facility. When discarding the device, comply with the rules and regulations that apply in your
country. If in doubt, consult your local waste disposal facility.
40
power amplier
Notes
E-400, E-800, E-1200, E-1500
41
Notes
42
power amplier
Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.de
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