~The L~eade~r in A~udio Engineen’ng
Full Power Balanced
Power Amplifiers
600, 300, 200 Stereo
650M, 350M, 250M Monaural
Instructions for Use, v 98.2
Owner’s Reference
A note from Dan D’Agostino
Thank you for your pd~chase of a Full Power Balanced amplifier. This
component has been designed to exceed all other amplifier products in ultimate
performance, musicality, and overall durability. I am sure that it will give you
many years of superior performance. Some of the features that r[Lake this Full
Power Balanced amplifier unique include:
Kreil Current ModeTM: This advanced circuit topology is a KRELL
introduction to the audio industry and yields a far greater degree of speed
and stage presence than is possible through conventional technologies’.
Fully Regula-~ed Output Stage: One of the most obvious causes of musicat
corruption in an amplifier is voltage and current drop in the output stage.
While the large capacitive banks used by other manufacturers are marginally
effective with current drop, capacitors cannot compensate for voltage drop.
~, Full Power Balanced amplifier’s regulated output stage and power supply is
impervious to these forms of corruption. Current and voltage remain constant
under all operating conditions.
Balanced Amplifier Design: Your Full Power Balanced amplifier
incorporates completely balanced circuit topology from input to output,
maintaining the integrity of the audio signal and exercising greater speaker
control by means of its balanced, push-pull relationship with the speaker
drivers.
Class A Operation: Class A is the only linear operating state in electronics.
Your Full Power Balanced amplifier operates in Class A to its full rated power
to provide the most accurate and richly detailed musical experience possible.
Sustained Plateau Bias Ii~: Sustained Plateau Bias II
TM
is a KRELL
patented process that enables your amplifier to play all music (up to full rated
power) in Class A, yet greatly reduce the heat dissipation and energy
consumption associated with conventional Class A designs. Sustained
3
¯
Pla~teau Bias ii
TM
is a true Class A circuit, as opposed to sliding or adaptive
biasing schemes.
The Full Power Balanced amplifier follows all classic KRELL mar~ufaoturing and
materials requirements, and I am sure that you will not find its equal anywhere in
the world.
Enjoy your KRELL Full Power Balanced amplifier.
Sincerely,
Dan D’Agostino
C.E.O
4
Introduction
To obtain the best performance from your Full Power Balanced amplifier, careful
’attention should be paid to its placement, installation, and operation. A thorough
understanding of these details will help insure satisfactory operation and long
life for the Full Power Balanced amplifier and related system components.
This Owner’s Reference is divided into several sections, each designed to
perform a different function. As you read through the Owner’s Reference you
will become better acquainted with the features and functions that make the Full
Power Balanced amplifiers a superb value..A Troubleshooting section is
included with solutions to potential problems. Should you have any questions
or suggestions, please feel free to contact your authorized ~ealer or the KRELL
staff for assistance.
The Full Power Balanced series of amplifiers consists of three stereo amplifiers,
the Full Power Balanced200, 300, and 600, and the three monaural amplifiers,
the Full Power Balanced 250M, 350M, and 650M. Installation, connection, and
operation of all amplifiers in the series is identical; however, please note that two
Full Power Balanced 250M, 350M or 650M amplifiers are required for stereo
operation.
In the unlikely event that your Full Power Balanced amplifier should require
service, you wi!! be pleased to know that is backed by a comprehensive
Customer Satisfaction policy and one of the most advanced service facilities in
the industry. For detailed information on the terms and conditions of service,
please refer to the Warranty and Service section of this Reference, Warranty
Registration Card, or an authorized KRELL Dealer or Distributor.
Unpacking
After opening the box and removing the top layer of foam, the Full Power
Balanced amplifier and the following items will now be visible:
IEC 320 20 amp AC power cord
Owner’s Reference
Warranty card
NOTES:
If any of these items are not included, please contact your authorized KRELL
dealer or distributor.
Save all packing materials. If you must ship your Full Power Balanced amplifier
in the future, repack the unit in its original packing to prevent shipping damage.
5
Location
Place the Full Powe~ Balanced amplifier on a firm level surface away from dirt or
moisture. When using custom racks or cabinetry, keep in mind the weight and
ventilation requirements for these amplifiers. Ideally, the amplifier should be
placed as close to the speakers as possible. It is preferable to run long
balanced interconnect cables to the amplifier and keep the speaker cable
length to a minimum. Speaker cable adds impedance to the I-6ad the amplifier
must drive, regardless of the cable’s gauge. All KRELL amplifiers will drive the
lowest impedances with ease, but when impedance is added due to long cable
lengths, amplifier power is wasted in the cable. Long speaker cables reduce the
maximum power that can be delivered to the speakers.
Remote Installation
Some installations do not have adequate, space or flexibility to place the amplifier
close to the speakers. The Full Power Balanced amplifiers can be situated in a
room or space close to the speakers, but out of sight, .and turned On or Off from
the listening room. Intemally, a provision has been made allowing the amplifier
to be powered On from an AC wall receptacle and not from the front panel power
switch or optional remote control. We suggest mounting a standard wall switch
in the listening room that controls an AC power outlet dedicated to the power
amplifier. This arrangement can be provided by an electrician. Please contact
your dealer for assistance.
NOTE: Once AC power is applied, the front panel power switch and the remote
P.csntml pnw~r .~vifP.h =r=
Cabinetry Considerations
Class A operation offers tremendous sonic benefits. Unfortunately, traditional
Class A amplifiers dissipate a tremendous amount of heat. KRELL’s patented
Sustained Plateau Bias circuitry combats this characteristic and reduces the heat
output considerably. However, the Full Power Balanced amplifiers can still
become quite warm under normal operation. The Full Power Balanced amplifiers
should be installed in a location that provides unobstructed ventilation.
IMPORTANT: The ventilation gdds on the top of all Full Power Balanced
amplifiers need to be unobstructed at all times during operation. Do not place
flammable material on top of or beneath Full Power Balanced amplifiers. For
installations inside cabinetry, extra ventilation may be necessary. Make sure the
Full Power Balanced amplifiers have adequate air circulation. Generally, two
inches of clearance on each side of the amplifier and eight inches of clearance
above the amplifier will provide adequate ventilation. In more extreme instances,
-, small fans can aid in removing excess heat from internal spaces-. Contact your
dealer, distributor, or Kreil®for more information.
6
AC Power Considerations
For best performan¢-e, a dedicated AC power line rated at a minimum of fifteen
amps is recommended for each amplifier. For maximum power output, the Full
Power Balanced 300 and 600 amplifiers Should be operated from a dedicated
twenty amp AC power line. The Full Power Balanced amplifiers should only be
operated with the power cord supplied. Please consult KRELL.or your dealer
before using any devices designed to alter or stabilize the AC power for the Full
Power Balanced amplifiers.
Connections
CAUTION: The differential circuitry employed within the Full Power
Balanced aml~lifiers requires special attention when connecting speakers.
Be careful not to connect the negative speaker terminals together. Do not
connect the negative speaker terminals to ground, or attempt to bridge the
left and right channels together of the Full Power Balanced stereo
amplifiers.-Please contact KRELL: Industries for assistance.
Input and Output Connections
Caution: When making connections to this component or any other, make sure
the power amplifier is off and the preamplifier is in the mute or stand-by mode.
The widng to and from the amplifier and all components in general should be
arranged in a neat, organized manner. Specifically, AC wires should be
separated from audio cables. This practice prevents hum or other unwanted
noise from being introduced into the system.
1. Connect the speaker cables to the amplifier’s output terminals.
The Full Power Balanced amplifiers utilize two custom sets of identical speaker
terminals for the each channel. This configuration makes cable connections and
biwiring simple. The speaker terminals only accept spade lugs. Bare wire,
banana lugs, or pins will not work. The red terminals are used for positive
connections and the blue terminals are used for the negative connections.
Either the upper or lower set of speaker terminals may be used with speakers
having one pair of binding posts. For biwiring, both sets of terminals should be
used. Consult your speaker’s instruction manual for biwiring connections.
CAUTION: Make sure all cable terminations are of the highest quality, free from
frayed ends, shorts, or poor solder connections.
2,
C~nnect the interconnect cables from your preamplifier, to the input of the Full
Power Balanced amplifier.
The Full Power Balanced amplifiers are equipped with balanced and singleended inputs. The balanced inputs use three pin XLR connectors and the
single-ended inputs use RCA connectors. We recommend the use of balanced
interconnects,.sonically and electrically, because of their immur~ty to induced
noise and minimal sonic loss resulting from long cable lengths.
CAUTION: Use only one set of inputs to the amplifier at a time. The Full Power
Balanced amplifiers are shipped with shorting pins in the XLR inputs, These
pins should remain in the XLR inputs if the Full Power Balanced amplifier is
operating in the single-ended mode. When the shorting pin is inserted, pins 1
and 3 are shorted together. The shorting pins must be removed to connect the
Full Power Balanced amplifiers for balanced operation.
The pin assignment for the XLR is:
pin 1 = shield (ground)
pin 2 = non_-inverting input (hot)
pin 3 = inverting in put
.3~ Insert the AC power cord into the receptacle located on the back of the Full
Power Balanced amplifier. Insert the other end in’to the AC wall receptacle.
The amplifier is now ready for operation as described in the Amplifier
Operation section below. Should you have any questions regarding system
set-up, contact your dealer or KRELL Industries.
¯ Linking Multiple Amplifiers - Remote In / Out connections
The Remote In/Out function is used to synchronize remote control operation in
systems that include multiple amplifiers. When the In/Out ports are utilized, the
connected amplifier’s remote capabilities will be linked and controlled from one
amplifier.
Make sure all amplifiers are off, including the power breakers located on the
rear panel, before proceeding. This insures-all amplifiers are synchronized
when the communication cable is connected.
Select the amplifier that will be the control amplifier, Only this amplifier will
receive remote commands and should be in plain view for proper remote
control operation. All additional amplifiers are considered slaves and will
only respond to remote commands received via the In/Out communication
8
cable. Connect one end of the linking cable to the connector labeled Out on
the back panel.
3.
Connect the other end of the linking cable to the In port on the second
amplifier.
4.
To couple three amplifiers, connect a second linking cable to the Out
connector on the second amplifier. Connect the remaining end to the In port
on the third amplifier.
5. Connect additional amplifiers as described in step 4.
6. Point a KRELL remote control at the control amplifier and press the Amp.
Power button. The amplifiers will all power up at the same time.
Notes:
When configured for Remote In / Out operation, each amplifier can be turned
ON/OFF individually from their respective front panels. All amplifiers must be
returned to the identical power state manually in order to maintain remote
synchronization.
The communication cables are standard five pin DIN ~;ables and are commonly
referred to as MIDI cables. Contact your KRELL dealer or KRELL Industries to
obtain remote link cables.
For Use with a Tube Preamplifer
The Full Power Balanced amplifiers feature direct coupted circuitryfrom input to
output. This topology eliminates all coupling capacitorsfrom the audio signal
path. Coupling capacitors are used to blockdamaging direct current (DG) but
have sonic characteristics that impact music negatively. Instead, KRELL uses
non-obtrusive DC servos that strip DC from the signal without corrupting the
music.
Tube preamplifiers, by design, are capacitively coupled. For this reason, the
benefits of a direct coupled amplifier cannot be realized when used with a tube
preamplifier. Additionally, many tube preamplifiers output a great deal of DC.
This DC may exceed the servos of a Full Power Balanced amplifier. Excessive
DC level in a signal can damage amplifiers, speakers, or both.
To combat this potential problem, the Full Power Balanced amplifiers include
internal jumpers that insert coupling capacitors into the signal path. These
capacitors should be engaged when using a tube preamplifier with a Full
9
Powbr Balanced amplifier. If not utilized, KRELL reserves the right to
refuse warranty service due to DC related damage. Please contact your
KRELL dealer for =assistance.
Amplifier Operation
Understanding the operation of the Full Power Balanced amplifiers is very easy.
Equally important is an understanding of the care that should be exercised when
operating the system as a whole, in relation to the enormous power output of the
Full Power Balanced amplifiers. Simple mistakes, such as switching between
active sources without muting the preamplifier output, or bumping/miscuing a
cartridge, can generate large transients at low.frequencies. With this type of
transient the Full Power Balanced amplifiers can generate enough power to
damage most loudspeakers. All switching of sources should be done with the
preamplifier level either muted or fully attenuated. Inputs to the amPlifier should
not be change--d while the amplifier is on.
NOTE: Care must be taken when setting high playback levels. Because of their
tremendous.reserve of clean power, KRELL amplifiers can safely drive speakers
to higher sound pressure levels than other amplifiers. Always turn the level
d._own at the first sign of speaker distress.
Description of On/Off and Standby Operati6n
When pnw~=ring ,,p =ny
.............. ~ ...... , ....
~,,,,,~, ~ o, ,,.,,.,,~, =,~,=y= be turned on last and
turned off first.
Locate the power breaker on the rear panel of the amplifier. Move the switch
to the ON position. The power LED, labeled P, will illuminate on the from
panel. This engages the input circuitry and sets the amplifier to the Standby
position.
Press the silver power button on the front panel of the amplifier. The
regulator LED, labeled R, will illuminate. Once the regulator secures control of the output stage, the bias LED, labeled B, will illuminate. The Sustained
Plateau Bias IIsystem is now engaged. After the protection circuits have
confirmed that safe operating conditions exist, the input relays will engage.
You will hear a click. The amplifier is now ready for operation.
3. With the preamplifier in the Mute position, or volume control fully attenuated,
select a source. Turn the volume control up to your desired listening level.
4. When turning the system off, lower the volume of the preamplifier completely
or place it into the mute or stand-by position. Switch the amplifier to Standby
10
by pressing the silver power button. It is now safe to turn off the rest of the
system.
NOTE: For optimal performance, the rear panel power breaker should be left in
the ON position at all times.
Remote Control Operation
An optional remote control is available for the Full Power Balanced amplifiers.
The amplifiers can be switched between Standby and Operate via this remote
control or from the remote controls included with KRELL preamplifiers, the
KRELL Audio + Video Standard, and the KPS 25s KRELL Playback System.
System Noise C0hsiderati0ns
AC grounding Eecomes critical when connecting high performance audio
components. When mixing and ma.tching audio components, each with their
own ground potential, a low frequency hum may occur in one or both speakers.
This often occurs when introducing a new component into a system.
If there is a low frequency hum emanating from the speakers when the Full
Power Balanced amplifier is placed into the system, follow these simple trouble-
shooting steps before cont~lcting your KRELL dealer: "
Check a!! input and output connections, making sure they are of sound
construction. With the amplifier off. remove the interconnect wiring and turn
the amplifier back on. if the hum disappears, shut the amplifier off and
reinsert one of the interconnect cables and turn the amplifier back on. If the
hum reappears with one or both interconnects reinserted, there may be a
defective cable. Have the interconnect cabling checked before proceeding.
If the interconnects prove to be sound, you may be experiencing a ground
loop. This can often be easily eliminated. Contact your dealer or KRELL for
assistance.
Protection Circuitry
There are no output fuses in the Full Power Balanced amplifiers. The amplifiers
are protected by a series of non-intrusive circuits that constantly evaluate the
amplifier’s operation. Appropriate protection action exists for input and output
DC conditions, short circuit, regulator uniformity, and AC power anomalies.
Collectively, the protection circuitry is designed to avoid damage to the amplifier
or speakers caused by other defective components, faulty wiring, system
11
mishandling, or amplifier failure. See the Troubleshooting section below for
more information.
Troubleshooting
Listed below are the actions the Full Power Balanced amplifiers will take when
the protection Eircuitry senses a problem within the system. If the recommended
course of action does not correct the situation, contact KRELL Industries.
Output mutes during Excessive DC at the Have source unit and
playback, amPlifier input preamplifier checked for
high DC output.
LED’s illuminated: P,R,B
If the preamplifier is a
tube model, see the For
Use with a Tube
Preamplifier
section.
Amplifier switches to
Standby mode.
Electrical short in
speaker cables or inside :
speaker.
LED’s illuminated: P
Check all speaker cables
for any cuts or frayed
edges that might form a
...... ’="-"- between the
positive speaker lead
and the negative speaker
lead.
Amplifier switches to
Insufficient AC current Make sure the AC. line is
Standby at high volumes, from the wall outlet, at least 15 Amps;.a
dedicated 20 Amp line is
LED’s illuminated: P preferable for the Full
Power Balanced 300 and
600.
Excessive heat
Aliow amplifier to cool
before resuming
¯ ~
operation.
~Amplifier powers down DC present at the output Contact KRELL
completely, stage. Industries.
LED’s illuminated: None Interna.I amplifier problem
Question and Answer
Q. Should I leave the Full Power Balanced amplifier on at all times?
For maximum performance, the rear panel breaker should remain on at all
times. This is the stand-by position. From this position, the Full Power
Balanced amplifier is designed to be turned On/Off without the "cold start"
degradations associated with other products. The amplifier will operate at
full performance within minutes of turn-on.
Q. When I turn the amplifier on there is a loud hum through the speakers. What
should I do?
Ao
When a new Component is introduced, a hum may be~:ome present. This is
often caused by a ground loop or defective cabling. Check your cables to
and from the amplifier. See the Noise Considerations section for more
information, if the hum persists., contact your dealer or the KRELL staff for
assistance.
Q. My system includes multiple pairs of speakers~ Can ! connect them to the
Full Power Balanced amplifier through a speaker selector box?
No. Most speaker selector boxes utilize a commoh ground. The differential
circuitry in the Full Power Balanced amplifiers prohibits the use of these
devices. Do not connect a Full Power Balanced amplifier to a speaker
selector device that employs a common ground scheme.
Q. My speakers only have one set of binding posts. Which set of speaker
terminals should I use on the amplifier?
A.
The two sets of speaker terminals for each channel on the Full Power
Balanced are identical. You can use either the top or bottom set. They
sound and work the same.
Q.
My speakers are rated for 150 watts, is the Full Power Balar~ced 300 or Full
Power Balanced 600 too powerful for them.
Seldom is a speaker damaged from over-driving. More often, damage occurs
when an amplifier that lacks sufficient power is asked to handle heavy
demand situations. These amplifiers may have very high 8.Q power ratings,
but in heavy demand situations they can be driven into clipping that damages
speakers. Because of their tremendous capabilities, the Full Power
Balanced amplifiers are capable of damaging speakers, but a responsible
listener should know the limitations of his/her system and exercise caution.
13
(3.
When I connected the Full Power Balanced amplifier to my system using the
single-ended inputs a loud buzz emanates from my speakers. Is the amplifier
broken?
Ao
When using the single-ended inputs, the included shorting pins must be
inserted into the XLR inputs. These shorting pins must be inserted between
pins 1 and 3 to prohibit external noise from corrupting the signal.
Service and Warranty Information
IMPORTANT: If you believe there is a problem with your unit, please contact
your Dealer, Distributor, or the KRELL factory immediately. Do not return any
unit to KRELL for repair without first calling to discuss the problem and to obtain
a Return Authorization number.
The Full Power’Balanced amplifiers have a limited warranty and transferable
warranty of ninety days from the o.riginal date of purchase for parts and labor.
With the return of the included Warranty Registration Card and a copy of
the original_sales receipt from an authorized Kreli Dealer, this warranty will
be extended to a full five years. The warranty begins on the date of retail
purchase, as noted on the retail sales slip provided by an authorized KRELL
Dealer or on the warranty registration card sent to KRELL. In the event
adequate proof of purchase date is unavailable, the ~/arranty period will begin
on the date the unit was originally shipped from the KRELL factory. The original
ship date can be determined by calling KRELL.
The warranty for KRELL prod~Jcts is valid only in the country to which they were
originally shipped, through the authorized KRELL Distributor for that country,
and at the KRELL factory. There may be restrictions on or changes to KRELUs
warranty because of regulations within a specific country. Please check with
your Distributor for a complete understanding of the warranty in your country.
Freight to the KRELL factory is your responsibility. Return freight within the
United States is included in the warranty. If you have purchased your KRELL
product outside the United States and wish to have it serviced at the KRELL
factory, all freight and associated charges to the KRELL factory are your
responsibility. KRELL will pay return freight to the US-based freight forwarder of
your choice. Freight and other charges to ship the unit from the freight forwarder
to you are also your responsibility.
The operating voltage of this unit is determined by KRELL and can only be
changed by an authorized KRELL distributor or the KRELL factory. The voltage
for the Full Power Balanced amplifiers in the USA cannot be changed for six
months from the original purchase date. Any unauthorized voltage conversion,
disassembly, component replacement, perforation of chassis, updates, or
14
modifications performed to the unit will void the warranty. KRELL is not
responsible for any damage incurred in transit. KRELL will file claims for
damages as necessary for units damaged in transit to the KRELL factory. You
are responsible to file claims for shipping damages during the return shipment.
The use of any packing material other than the original is not recommended.
KRELL may, at its discretion, pack a unit in new material for the return shipment.
KRELL will bill you for such if the unit was shipped in nonstandard packing or if
the original packing is so damaged as to be unusable. Should you need to
purchase additional packaging please contact your authorized KRELL Dealer,
Distributor, or.KRELL for assistance.
15
Specifications
Full Power Balanced 200, 300, 600
FPB 200
Frequency Response
20 Hz- 20 kHz
+0.0, -0.05 dB
0.1 Hz- 240 kHz
+0.0, -3.0 dB
FPB 300
20 Hz- 20 kHz
+0.0, -0.05 dB
0.1 Hz - 240 kHz
+0.0, -3.0 dB
FPB 600
20 Hz - 20 kHz
+0.0, -0.05 dB
0.1 Hz - 240 kHz
+0.0, -3.0 dB
Gain
26.4 dB
26.4 dB 26.4 dB
Distortion 1 kHz 0.02%
1 kHz 0.02% 1 kHz 0.02%
20 kHz 0.06% 20 kHz 0.15 %
20 kHz 0.15%
Input Sensitivity
1.92 Vrms 2.35 Vrms
3.39 Vrms
Input Impedance 100 Kohms
100 Kohms 100 Kohms
Output Voltage Peak, to Peak 138 V Peak to Peak 170 V
RMS 49 V RMS 60 V
Peak to Peak 240 V
RMS 84 V
Output Power, 8 Ohms 200 W
Each Channel Driven 4 Ohms 400 W
2 Ohms 800 W
Power Consumption
Dimensions
Inches
Centimeters
Standby 60 W
Idle 175 W
Max. 1,700 W
19w x 10.2h x 16.9d
48.3w x 25.9h x 42.9d
8 Ohms 300 W
4 Ohms 600 W
2 Ohms 1,200 W
Standby 75 W
Idle 350 W
Max. 3,000 W
19w x.10.2h x 19.9d
48.3w x 25.9h x 50.5d
8 Ohms 600 W
4 Ohms 1~00 W
2 Ohms 2,400W
Standby 85 W
Idle 430 W
Max. 6,000 W
19w x 10.2h x 25.6d
48.3w x 25.9h x 65d
Weight
Shipped
Pounds
107.0
127.0 200.0
Kilograms
48,6 57.7
90.9
Unit Only
Pounds
90.0
110.0 180.0
Kilograms
40.9 50.0 81.8
All operational features, functions, specifications, and policies are subject to change without notification.
16
Specifications
Full Power Balanced 250M, 350M, 650M
FPB 250M
20 Hz - 20 kHz
+0.0, -0.05 dB
0.1 Hz- 240kHz
+0.0, °3.0 dB
Frequency Response
FPB 350M
20 Hz- 20 kHz
+0.0, -0.05 dB
0,1 Hz - 240 kHz
+0.0, -3,0 dB
FPB 650M
20 Hz- 20 kHz
+0.0, -0.05 dB
0.1 H’z - 240 kHz
+0.0, -3.0 dB
Gain 26,4 dB 26.4 dB 26.4 dB
Distortion 1 kHz 0.03%
20 kHz 0.28%
1 kHz 0.03%
20 kHz 0.3%
1 kHz 0.03%
20 kHz 0.3%
Input Sensitivity ¯ 2.14 Vrms 2.6 Vrms
3.6 Vrms
Input Impedance
Output Voltage
100 Kohms
100 Kohms
Peakto Peak 138 V Peakto Peak 170V
RMS 49 V RMS 60 V
lOOK ohms
Peak ~ Peek 240 V
RMS 85 V
Output Power,
Each Channel Driven
8 Ohms 250 W
4 Ohms 500 W
2 Ohms 1,000 W
8 Ohms 350W
4 Ohms 700W
2 Ohms 1,200 W
8 Ohms 650 W
4 Ohms 1,300 W
2 Ohms 2,600 W
Power Consumption Idle 150 W
Max. 1,700 W
Idle 175 W
Max. 3,000 W
Idle 220 W
Max. 6,000 W
Dimensions
Inches
Centimeters
12.7w x 10.2h x 16.9d
32.3w x 25.9h x 42.9d
12.7w x 10.2h x 19.9d
32.3w x 25.9h x 50.5d
12.7w x 10.2h x 25.6d
32.3w x 25.9h x 65d
Weight
Shipped
Pounds
79.0 110.0 154.0
Kilograms
36.0 50.0 70.0
Unit Only
Pounds
68.0 79.0 140.0
Kilograms
31.0 36.0 63.8
All operational features, functions, specifications, and policies are subject to change without notification.
17
Return Authorization
Procedure
IMPORTANT
If you believe there is a problem with your
component, p/ease contact your dealer, distributor, or the Kre//® factory to discuss the
problem before you return the component
for repair. To expedite service, you may
wish to complete and e-marl the Service
Request Form on our web site at:
www.krel/online.com
To return a product to Krell
®,
please follow this procedure so that we may
serve you better:
1.
Obtain a Return Authorization Number
(R/A number) and shipping address
from the KrelP Service Department.
2.
Insure and accept all liability for loss or
’damage to the product during shipment
to the Krell® factory and prepay all shipping charges. The product may also be
hand delivered if arrangements with the
Service Department have been made in
advance. Proof of purchase may be required for warranty validation at the time
of hand delivery.
3.
Use the original packaging to insure the
safe transit of the product to the factory
,
dealer, or distributor, The use of any
packaging material other than the odginal
packaging materials is not recommended. KrelP may, at its discretion, return a
product in new packaging and bill the
owner for suchpackaging if the product
received by Krell® was boxed in nonstandard packaging or if the original
-. packaging was so damaged that it was
unusable. If Krell® determines that new
packaging is required, the owner will be
notified before the product is returned.
To purchase additional packaging,
please contact your authorized Krell
®
dealer, distributor, or the Krell® Service
Department for assistance.
KreIP is not responsible for any damage
incurred in transit. Krell® will file claims for
damages as necessary for products damaged in transit to the factory. The owner is
responsible for filing claims for shipping damages that. occur during the return shipment.
Replacement parts and/or products will be
furnished on an exchange basis only; any
parts and/or products returned to Krell® for
exchange become the property of Kreli
®.
No expressed or implied warranty is made
for any KrelP product damaged by accident,
abuse, misuse, natural or personal disaster,
or unauthorized modification.
In the event that KrelP receives a product for
warranty service which has been modified in
any way without Krell® authorization, all war-
ranties on that product will be void. The
product will be returned to original factory
layout specifications at the owner’s expense
before it is repaired. All repairs required after
the product has been returned to original
factory specification will be charged to the
customer, at current parts and labor rates.
TEL
203-799-9954
Monday-Friday
9:00 am to 5:00 PM EST
FAX 203-799-9796
E-MAIL
krell@ krellonline.com
PRODUCT SERIAL NUMBER
To register your product for warranty benefits,
I
Icomp/ete and return the Warranty Registration
I
ICard enclosed in the shipping box within 15 days
I
[of purchase. Thank you.
1
18
KreiP Industries, Inc.
45 Connair Road
Orange, CT 06477-3650 USA
TEL 203-799-9954 FAX 203-799-9796
E-MAIL krell@krelloniine.com
WEB SITE www.krellonline.com
Full Power Balanced
Power Amplifiers
600, 300, 200. Stereo
650M, 350M, 250M Monaural
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