NEPOMUK KLEINER MUK MK3 User manual

Kleiner Muk MK3
All Tube Guitar Amplifier
User Guide V 3.4
Release of 2016/3/21 - subject to modifications

NEPOMUK Kleiner Muk MK3 - All Tube Guitar Amplifier
V3.4 Seite 2
CONTENT:
1 QUICK-START-GUIDE.....................................................................................................................3
2 IMPORTANT SAVETY INSTRUCTIONS......................................................................................4
3 HANDLING NOTES...........................................................................................................................4
4 OPERATION.......................................................................................................................................5
4.1 T OP S IDE .............................................................................................................................................5
4.2 R EAR S IDE ..........................................................................................................................................6
5 HIDDEN FEATURES.........................................................................................................................7
5.1 S UMMARY ..........................................................................................................................................7
5.2 P RESENCE - R EDUCTION .....................................................................................................................8
5.3 M ID - A DJUSTMENT ............................................................................................................................8
5.4 T IGHT ON @ B OOST ............................................................................................................................8
5.5 B OOST L EVEL .....................................................................................................................................9
6 TECHNICAL SPECIFICATIONS....................................................................................................9
6.1 G ENERAL D ATA ..................................................................................................................................9
6.2 T UBE L AYOUT ....................................................................................................................................9
6.3 C IRCUIT B LOCK D IAGRAM ................................................................................................................10
7 TUBES................................................................................................................................................11
7.1 I MPORTANT N OTES ...........................................................................................................................11
7.2 R EPLACEMENT OF P OWER T UBES .....................................................................................................11
7.3 R EPLACEMENT OF P REAMP T UBES ....................................................................................................11
7.4 T UBE - O VERVIEW ............................................................................................................................12
8 ACCESSORIES.................................................................................................................................13
8.1 F OOTSWITCH NFS4-2.......................................................................................................................13
8.2 P ROTECTION C OVER .........................................................................................................................13
9 CONFORMITY.................................................................................................................................13
10 CONTAKT.........................................................................................................................................13
11 WARRANTY .....................................................................................................................................14
11.1 P RODUCT R EGISTRATION C ARD ....................................................................................................14

NEPOMUK Kleiner Muk MK3 - All Tube Guitar Amplifier
V3.4 Seite 3
Congratulations to the purchase of a Nepomuk Kleiner Muk all-tube amplifier!
With its 2 ½ channels and its clear yet efficiently working controls and switching functions Kleiner Muk
covers sounds from clean jazz to blues, rock, fusion and more and is also perfectly suitable for acoustic
guitars (with magnetic pickups), resonator guitars or mandolins.
Furthermore - thanks to its 4 switchable power levels - you can enjoy a rich tube sound full of overtones
in any situation from bedroom level to club stage.
The whole amplifier circuitry is built in pure tube technology, only reverb and the FX-loop are
implemented with high-grade, sound-neutral ICs of studio equipment.
Of course a noble outfit may not be absent with such a top product. The control panel is made of true
walnut wood and is marked with luxurious engraving. An additional precious wood logo adorns the
speaker grill made of "Vienna Weave" and the whole housing is covered with finest, eco-friendly tanned
real leather.
Also we use only FSC-certified wood & pay attention with the remaining components - as far as it is
possible anyhow - on modern, environmental- & people-friendly made articles.
In the following chapters you find more exact description, service and other useful tips.
ATTENTION - before the first startup read the important safety instructions!
1Quick-Start-Guide
1. Please read the safety instructions on the next page!
2. Check the correct fit of the power tubes. Though the power tubes are fixed by holding
clamps, however, in a rare case, it could be possible that a tube has loosened, e.g., after
a dispatch with a package service or a long transport over rough streets. The tubes must
sit straight on stop in the socket and the clamps must hold them tightly.
3. Connect power cord. The local mains voltage must correspond to the specification of
the amplifier (±5%).
4. Footswitch: if the footswitch is used and plugged in correctly, you have to set all
switches assigned to the respective functions on the amplifier's control panel to "on" -
position (= left position) to ensure, that all footswitch functions work.
5. At 1
st
startup set MASTER & ev. both VOLUME - controls to a low value.
6. Turn on the power switch. FULL/HALF - switch should be at middle position = standby.
7. After approx. 1 - 2 min warm up, you can switch from standby to FULL or HALF.
8. Set volume controls (MASTER, VOLUME, GAIN) as desired. You can get the loudest
possible undistorted clean sound with MASTER set fully cw.
9. To get nice crunch sounds in the CLEAN - channel, set TONE far right (cw) and
VOLUME as high, as you want the twang- or crunch- distortions. MASTER controls the
overall volume. Turn MASTER up to get some poweramp saturation & overtones added.
10. In DRIVE - channel, if you want a 'creamy' sound, turn EDGE far left (ccw) & perhaps
set TIGHT left for less bass. If you want more treble & 'bite' set EDGE more cw.
11. Before TURNING OFF or in longer breaks, turn the amplifier to STANDBY (middle
position of the FULL/HALF - switch = STBY). If the amp is not required any more, after it
was switched to standby it can be switched off immediately.
12. Should the amp be carried away or relocated, let it COOL DOWN for about 5 to 10 min
after switching off. Otherwise the tubes may be damaged by heavy vibrations or shock.

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V3.4 Seite 4
2Important Savety Instructions
The device was produced by audio SCHMITRONIX technology according to EN 60065 and has left the
factory in technically flawless condition. To keep this condition and to guarantee a safe operation, the
user must follow the instructions which are included in this user's guide. The device corresponds to the
protective class I (safety-earthed) – mains voltage 230V ± 5%.
THE SECURITY, RELIABILITY AND ACHIEVEMENT OF THE DEVICE IS WARRANTED BY
SCHMITRONIX audio technology ONLY IF:
» assembly, enlargement, new setting, changes or repair is done by SCHMITRONIX audio technology
or by authorized service personnel.
» the electrical installation of the relevant area complies with the requirements of IEC (ANSI)
specifications. (Mains voltage requirements please refer to sector 'Technical Specifications')
» the device is used according to the instructions of this user's guide.
INSTRUCTIONS:
» Never break off the ground pin on the power supply cord.
» The amplifier has to be protected from moisture and should be protected against dust.
» The unit must not be exposed to vibrations during and until at least 10 min. after operation.
» Do not place this product on an unstable cart, stand or table. The product may fall, causing serious
damage to it or to persons!
» Opening of the device may be carried out only by qualified service personnel. If covers are opened or
case parts are removed, unless this is possible without tools, parts can be exposed which conduct
dangerous voltage.
» If an opening of the device is necessary, the device must be disconnected from the power outlet.
» ATTENTION! Because of high voltage conducting and buffering components, an interval of at least
5 minutes must be kept after switching off the device and before any intervention the voltage on the
big capacitors must be checked for a value below 50 V! Consider this before a servicing, repair or
replacement of parts.
» Adjustment, maintenance and repairs carried out when the unit has been opened and is still live may
only be performed by authorized specialist personnel who are aware of the associated dangers.
» A use of "repaired" fuses or short-circuiting the fuse holder is inadmissible.
» All fuses may only be replaced with the same type & value.
» Back panels or covers (also with cooling slits), as well as tubes and their covers, are purposely
designed to dissipate high temperatures and should therefore not be touched. They can remain hot
up to 15 min. after switching off the device.
» The unit must be positioned so that the amplifier is well ventilated - at least 10 cm away from walls.
Any ventilation openings and the whole rear opening must never be blocked or covered.
» Keep away from other hot objects like heating elements, radiant heaters or similar devices.
» Keep away from wet areas, water, baths, wash basins or similar.
3Handling Notes
ENVIRONMENT The amplifier should not be operated or stored in humid environment and should be
protected from dust. Operation or storage at a humid room - like in cellar or a not frequently heated room
- decreases lifetime and reliability. Under circumstances this can lead to the loss of warranty claims.
COOLING DOWN PHASE After switching off, the tubes have to cool down for approx. 5 – 10 min.
before the amplifier is moved or transported. Hot tubes are very sensitive to vibrations and also light
pushes can lead to tube damages.
CLEANING The sensitive real leather cover should be maintained accordingly and be treated carefully.
Soiling should be removed possibly immediately with a soft humid cloth, if necessary with the use of a bit
of a soft hand- or dishwashing detergent.

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V3.4 Seite 5
4Operation
4.1 Top Side
Controls
INPUT
Input jack für the guitar.
Channel
1
Clean - Channel
TONE
Very effective working tone control, which is situated prior to the
VOLUME. Control range: left: much bass / right: much treble,
whereby with high VOLUME (& also MASTER) you can generate a
nice Crunch-Sound.
BRIGHT
Enhancement of the brilliant highs, depending on the position of the
VOLUME control.
VOLUME
= gain & sound volume of the Clean - channel
Channel
Selection
CHANNEL
Changeover between Clean- and Drive- Channel. In Lead- Channel,
the LED shines red. Remote-able via footswitch jack #1.
Channel
2
Drive - Channel
GAIN
Preamp gain from light crunch to heavy Lead-Overdrive.
BOOST
Adds an additional tube stage, resulting in a richer distortion
structure and producing a very creamy lead sound with high gain..
Remote-able via footswitch jack #2.
EDGE
Tone control - full cw means more treble, full ccw means more mids
and bass (in this position maximum mids = very creamy sound, if you
want less bass, use the TIGHT switch).
For fat sounding guitars or pickups, resulting in a muddy tone at the
lower or palm-muted strings, it is recommended to use the Tight
switch.
TIGHT
Reduces the basses and some of the deep mids at the 1. tube-stage
to create a tight tone and to avoid muddy sounds when with high
gain (e.g. at high gain with the neck-humbucker on).
VOLUME
sound volume of the Drive - channel
Master
-
Section
SMOOTH
Creates a softer tone by slightly softening the presences. This can
also be used to achieve more bite when switching from a more
temperate rhythm play to solo play.
Remote-able via footswitch jack #2.
REVERB
Controls the TAD™ spring reverb. Remote via footswitch jack #1.
MASTER
Allover Volume
FULL/HALF
(STANDBY) Reduction of the max. output power by 50% by switching the
operating mode of the output tubes. Thereby you can reach a nice,
full tube - tone also with bedroom levels. And with turned up Volume
control a harmonious tube-saturation is added.
In middle position, the amp is in STANDBY.
SE/PP
S
ingle-
E
nded /
P
ush-
P
ull:
Switches the poweramp from class-A-operation (SE, only one power
tube active) to class-AB-operation (PP, both power tubes). Thereby
the max. output power is lowered far & tone is getting more warm
and softer.
POWER
Mains power switch.

NEPOMUK Kleiner Muk MK3 - All Tube Guitar Amplifier
V3.4 Seite 6
4.2 Rear Side
Power
Inlet
Mains Cable
IEC connector cable for 230V AC, length ~2m.
Mains Fuse
The mains fuse is located just besides the mains connection. microfuse 5x20mm T1A / 250V
HV
-
Fuse
High voltage fuse microfuse 5x20mm
T250mA / 250V
FOOTSWITCH
-
Connectors
general
Here you can either plug in the Nepomuk 4-way Footswitch NFS4-2
or usual 1- or 2- way footswitches - with or without LED (Each
button switches to ground, with the LED connected in series).
To ensure that all footswitches work, set all mini-switches assigned
to the respective functions on the amp's control panel to "on" -
position (= left position).
#1
:
Channel /
Reverb tip- contact switches the channel (NFS4-2 button #1)
ring- contakt switches reverb (NFS4-2 button #4)
#2
:
Boost /
Smooth tip- contact schaltet BOOST (NFS4-2 button #2)
ring- contakt switches SMOOTH (NFS4-2 button #3)
FX
-
LOOP
general
The effects loop is built up 'serial'. That means, if you connect any
effects pedal, the internal connection of the preamp signal to the
poweramp is interrupted. For best sound-results we recommend
high quality effect devices and cables. Typically modulation effects
like chorus, phaser, etc. or 'time' effects like reverb or delay are
connected here. You can use single effect pedals or multieffect
devices. For proper signal matching, adjust the following controls
carefully.
RETURN
Connector for the output of an FX-unit or feed of any signal directly
into the poweramp. If a jack is plugged in, the internal connection of
the preamp signal to the poweramp is interrupted.
SEND
Connector for the input of an FX-unit. It also can be used as a line-
out. This connector is located prior the master volume
& poweramp,
so it is useable also in standby, e.g to feed a tuner or another
(power-) amp.
SEND
-
LEVEL
Potentiometer to adjust the send-level to the FX-unit. Set this level
so that the FX-unit doesn't be overdriven or clipping at any of your
setted VOLUME levels (note: SEND is located prior MASTER) and
that the sonic volume is equal to the volume with no FX-gear
connected. If necessary, switch RETURN-GAIN to high position.
RETURN
-
GAIN
Control of the gain of the return signal (left = low gain, right = high
gain). Only set to 'high' if the FX-unit isn't able to deliver a high
enough output level.
LINE OUT
LINE OUT
Here you can connect the amps output signal to other units like
other guitar amp, power amp, DI-Box, speaker simulators or other
audio devices. Note, that this signal is being taken from the
loudspeaker, so the sound is also influenced from the poweramp
(poweramp-saturation/distortion) and the speaker.

NEPOMUK Kleiner Muk MK3 - All Tube Guitar Amplifier
V3.4 Seite 7
EXTERNAL
SPEAKER
16 OHM
Connection to an external speaker cabinet with an impedance of
16 Ohms. Hereby the INTERNAL SPEAKER is switched OFF.
8 OHM
Connection to an external speaker cabinet with an impedance of
8 Ohms. Hereby the INTERNAL SPEAKER remains ON.
ATTENTION
!
If connected, the external speaker cabinet
's impedance should not differ
from the specification noted above!
If you connect a speaker with a higher impedance as marked at the connector, the
output stage of the amplifier can suffer a serious, costly damage.
The use of both connectors at the same time is prohibited!
If not otherwise possible, a cabinet with half the impedance can be connected. This
doesn't damage the amplifier but you can't get the maximum power and a slightly
change in the given tone will occur.
Use only high-quality cables - marked as a loudspeaker cable - with high-quality
plugs! Never us a guitar cable! Bad or faulty cables or plugs can lead to bad sound,
but also to a damage of the output stage!
5Hidden Features
ATTENTION!
Because the amplifier must be opened here & high life-threatening voltages can exist, the
following modifications only may be carried out by a technical expert or a technically
experienced layman considering the following safety measures:
•Remove the mains cable!
•The device must be switched off for at least 5 min, so that all high voltage has discharged!
•Remove the upper back cover on the amplifier chassis!
•After modification the back cover must be mounted again (at least with just 4 screws for now)!
5.1 Summary
The following values are changeable:
1. the reduction of the presences of the 'SMOOTH' function
2. the amount of the Mids in drive - channel
3. TIGHT on @ BOOST
4. Boost Level
1.
2.
3
.
4
.

NEPOMUK Kleiner Muk MK3 - All Tube Guitar Amplifier
V3.4 Seite 8
5.2 Presence - Reduction
With this trimm-potentiometer you can tweak the
reduction-value of the presences (highest treble
frequencies) with switched on 'SMOOTH' - function.
According to the sound of the used speaker or personal
taste you can carry out adaptations. The mark assigns
our standard position with speaker Eminence Wizard.
•Obey the safety instructions as noted above
at point 5!
Note: no dangerous voltages exist on the
potentiometer-PCB.
•The trimm-pot is located at the upper right area of the potentiometer-PCB.
•The more left (ccw), the less presences.
5.3 Mid - Adjustment
Here you can set the value of the mids of the drive
channel.
•Obey the safety instructions as noted above
at point 5!
Note: no dangerous voltages exist on the
potentiometer PCB
•The trimm-pot is located at the middle area of the
potentiometer-PCB.
Standard position F = Full, like shown here
(H = Half ≙ center position like on a usual 3-band
tone control)
•The more left (ccw), the less mids
5.4 Tight on @ Boost
By means of a jumper you can define, if desired, that 'Tight' is automatically turned on when 'BOOST' is
switched on (regardless of the position of the 'TIGHT' switch).
In Drive - channel without 'BOOST', the TIGHT - switch operates normally.
•Obey the safety instructions as noted above at point 5!
Note: no dangerous voltages exist on the potentiometer PCB
•The jumper is located at the middle area of the
potentiometer-PCB.
•Jumper at upper position = the automatic 'TIGHT'
- function is active.

NEPOMUK Kleiner Muk MK3 - All Tube Guitar Amplifier
V3.4 Seite 9
5.5 Boost Level
Hereby you can adjust the amount of BOOST (= the value of distortion and gain of the volume).
•Obey the safety instructions as noted above
at point 5!
Note: at the trimm-pot & in close vicinity there are
no dangerous voltages, but in the other sphere
there are components, wires & traces which may
conduct high voltages at operation and afterwards.
•The trimm-pot is located at the main PCB.
•The mark assigns our default setting.
•The more left (ccw), the higher BOOST - level.
6Technical Specifications
6.1 General Data
Mains voltage: 230V ±5%, 50Hz
Powerconsumption: ~ 50W max.
Output Power: ~ 18W RMS (10% THD) max. (further settings: ~ 8W, 5W, 0,5W)
Power-Tubes: 6V6GT
Operating Modes: Single-Ended Class - A (SE) / Push-Pull Class - AB (PP)
Loudspeaker: Eminence Wizard 8 Ohms
other speakers on request,
e.g. Eminence Red Fang for a softer vintage tone
Dimensions: ~ 455 x 430 x 245 mm (WxHxD); height incl. 15mm rubber feet & without handle
Weight: ~ 16kg
6.2 Tube Layout
safe zone
V5, V6

NEPOMUK Kleiner Muk MK3 - All Tube Guitar Amplifier
V3.4 Seite 10
6.3 Circuit Block Diagram

NEPOMUK Kleiner Muk MK3 - All Tube Guitar Amplifier
V3.4 Seite 11
7Tubes
7.1 Important Notes
If the metal sheath in the power tube (anode metal plate) should glow partially (not to mistake with the
glowing of the heating filament), the amplifier must be switched off immediately and possibly the power
tubes must be exchanged and / or a tube - expert must be attended. Otherwise the output stage can
take serious damage.
The quality of today produced tubes can vary strongly every now and then. This may concern working
life and also sound. In rare cases it can occur that a new tube packs up suddenly. Unfortunately, in such
a case we cannot take over any warranty. But all amplifiers are tested at least 24 hours at our
manufactory, so such a failure is very unlikely.
7.2 Replacement of Power Tubes
Power tubes are wearing parts which will show loss of power sooner or later, depending on the
amplifier's operating time. If the amplifier sounds rather flabby and less clear and direct as earlier, in
most cases this lies in the power tubes. Increased hum, microphonics, loss of power / of treble and bass
reproduction are other symptoms.
With very often played amplifiers a replacement may already make sense after 1 to 2 years.
The amplifier comes from factory with 2x 6V6GT output tubes from Electro Harmonics. You also can use
all other 6V6 tubes from other manufacturers (see recommendations below). Other types of power tubes
are not allowed.
The bias - current is setted automatically, so no adjustment or intervention inside the amplifier is needed
→Auto-Bias! So a repalcement of the power tubes can simply be done by ordinary persons.
IMPORTANT by replacing tubes:
ATTENTION - danger of skin burns!
The amplifier must be turned off & the tubes be cooled so far, so that you can touch them without
danger.
Carefully pull off the tubes just down straight under pressing of the holding clamps apart. Eventually, only
light tilting of the tube is acceptable, otherwise the center pin of the tube socket could break.
The cooled tubes can be touched without doubt & need not to be wiped or to be degreased.
Tonal differences between power tubes of different manufacturers are absolutely noticeable.
From us well-chosen 6V6 are currently the tonal & mechanically most stable derivatives in the market.
Perhaps, you can fine-tune your individual (vintage-) sound-idea with certain, mostly rather expensive
NOS (new old stock) - tubes.
7.3 Replacement of Preamp Tubes
In the preamp tube types of 12AX7 (ECC83) do their work. Because here exist many variations of this
type with different sound qualities & gain values, you can readily change these tubes to the
experimentation. Also types of 7025 or 5751 can be used, but typically have less gain - e.g. for a more
clean tone (V1).
Preamp tubes generally show a much higher operating life than output tubes. They can often still do their
clear work after 10 or 15 years.

NEPOMUK Kleiner Muk MK3 - All Tube Guitar Amplifier
V3.4 Seite 12
7.4 Tube - Overview
The standard equipment of the little Muk is as follows:
V1: Sovtek 12AX7WB
V2: Sovtek 12AX7WB
V3: JJ ECC83S
V4: JJ ECC83S
V5, V6: EH 6V6
Here is a small survey about recommended preamp tubes:
manufacturer type description
Sovtek 12AX7WB Quasi „standard tube“, relyable, fairly neutral sound, without distinct mids,
suitable for hi-gain circuits (if other tubes are too "muddy") & sound-neutral
circuits like effects loop, reverb, phase inverter
JJ ECC83S In preamp circuits it emphasizes rather the mids, especially the low mids. Good
for „twangy“ clean,blues & hardrock – sounds. Also suitable for sound-neutral
circuits like effects loop, reverb, phase inverter.
Electro
Harmonix (EH) 12AX7 High gain. Sound: highlighted bass-range, pleasant, discreet highs, low noise, good for
warm and soft clean- & hi-gain- sound.
Tung-Sol 12AX7 „Big“, warm, "musically" tone, high gain, lowest microphonics.
Well suited for V1 (in clean to crunchy preamp stages)
Sovtek 12AX7LPS Similar to 12AX7WB, but more gain, lower noise
Groove Tubes 12AX7
Mullard Design
Pleasant vintage – tone, but not recommended for hi-gain
Svetlana /
SED 12AX7 Sonically similar to Elektro Harmonix 12AX7
and power tubes:
manufacturer type description
EH 6V6 Very good, open & "airy" tube. Very stable also in deep bass regions at high
power levels; low microphonics.
Genalex 6V6 Gold
Lion Exzellent tube, soft in the highs, low microphonics, but expensive.
TAD 6V6GT-STR This tube blazes with NOS - typical "sweet top end" and a surprising, tight low
end at once. Unfortunately susceptible for microphonics when used in combo
amps (manual sort out necessary).
JJ 6V6 (GT) S Very stable in the bass regions & at high power levels. Soft, clear highs,
exzellent overdrive-behaviour, high headroom, but susceptible for microphonics
when used in combo amps (manual sort out necessary).
Note:
The descriptions recommendations mentioned here refer only to tubes from topical new production.

NEPOMUK
Kleiner Muk MK
V3.4
8Accessories
8.1 Footswitch NFS4-2
optional
available or contained in the complete set
jack - assignments:
CHANNEL tip jack 1
BOOST tip jack 2
SMOOTH ring jack 2
REVERB ring jack 1
Marking jack 1 - red, jack 2 - blue
cable length ~ 6m
8.2 Protection Cover
soft padded synthetic leather, black
optional available or contained in the complete set
9Conformity
Hereby we confirm that the product with the type name
NEPOMUK Kleiner Muk
was developped, produced and placed on the market
EU directive 2006/95/EG
respectively
EU directive 2004/108/EG (elec
tromagnet
Applied Standards:
EN 60065 / VDE 0860:2015-11
Audio-, video- and similar elec
tronic
EN 61000-6-3:2011
Generic standards -
Emission standard for residential, commercial and light
EN 61000-6-1:2007
Generic standards -
Immunity for residential, commercial and light
10 Contakt
For questions about our products, please contact your dealer or the manufacturer directly
SCHMITRONIX audio technology
Burgstall 2
4952 Weng / Innkreis
AUSTRIA
Tel. +43 - 650 – 455 17 20
Fax. +43 - 7723 – 43 43 2
email: in[email protected]
www.nepomuk-amps.com
Kleiner Muk MK
3 - All
Tube Guitar Amplifier
available or contained in the complete set
soft padded synthetic leather, black
(Art.# NKM3-COVER-BK)
optional available or contained in the complete set
Hereby we confirm that the product with the type name
was developped, produced and placed on the market
according to
respectively
2014/35/EG (low voltage directive)
tromagnet
ic capability)
tronic
apparatus - safety requirements
Emission standard for residential, commercial and light
-
Immunity for residential, commercial and light
-
industrial environments
Martin Schmitzberger
Weng, 2016/03/21
For questions about our products, please contact your dealer or the manufacturer directly
Tube Guitar Amplifier
Seite 13
according to
:
-
industrial environments
industrial environments
Martin Schmitzberger
For questions about our products, please contact your dealer or the manufacturer directly
:

NEPOMUK Kleiner Muk MK3 - All Tube Guitar Amplifier
V3.4 Seite 14
11 Warranty
The manufacturer SCHMITRONIX audio technology guarantees for a legal warranty of 2 years from the
date of your purchase, in case that all instructions in this manual are followed.
Registered customers (by enclosed registration card or email) will obain an expanded warranty of 3
years. Thus the high quality of Nepomuk amplifiers is underlined once again.
Take this chance to obtain this additional security and get the following BONUS:
Furthermore, registered customers obtain a high quality Nepomuk - T-Shirt of individual choice (size S-
XXL, colors red or black), delivered free of cost within the EU.
Product fotos see our homepage or facebook.com/NEPOMUKamps - Fotos - Merchandising
Whether a case of warranty exists or a defect will be fixed for free by fair dealing can only be assessed
and decided by the manufacturer. If needed, the customer has to bear the incurred transportation costs.
Warranty claims can be asserted only on presentation of proof of purchase. Furthermore, within the
warranty period any guarantee claim expires if the unit has been opened, modified or repaired by from
the manufacturer non-approved service personnel and if damage is caused because of a bad tube-
replacement.
Excluded from warranty:
» Wear parts such as tubes, potentiometers, fuses.
» Damage and harm caused by external influences or improper handling (see previous chapters) - e.g.
oxidized or damaged socket contacts or tube sockets due to improper handling or storage (e.g. room
or basement with high humidity or non-continuous heating).
11.1 Product Registration Card
Enclosed you will find the registration card for the granting of an extended 3 -year warranty and a free
delivered Nepomuk T-Shirt (see above). Please note the information on this card.
Surely you can register your amplifier also by email to [email protected]
Please note the following:
•name
•address
•Model
•serial number
•date of purchase
•dealer
•please add a scan of the original invoice (surely you may cover the purchase price)
•T-shirt color (red or black)
•T-shirt size (S-XXL)
•please note if you'd like to get our email - newsletter
Your given data will be used internally for warranty management exclusively.