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This Krell product has a limited warranty of five years for parts and labor on circuitry from
date of purchase or six years from date of original shipment from the Krell factory. Should
this product fail to perform at any time during the warranty, Krell will repair it at no cost to
the owner, except as set forth in this warranty.

The warranty does not apply to damage caused by acts of God or nature.

The warranty on this page shall be in lieu of any other warranty, expressed or implied,
including, but not limited to, any implied warranty of merchantability or fitness for a 
particular purpose. There are no warranties which exceed beyond those described in this
document. If this product does not perform as warranted herein, the owner’s sole remedy
shall be repair. In no event will Krell be liable for incidental or consequential damages 
arising from purchase, use, or inability to use this product, even if Krell has been advised of
the possibility of such damages.

Proof of purchase in the form of a bill of sale or receipted invoice substantiating that the unit
is within the warranty period must be presented to obtain warranty service. The warranty
begins on the date of retail purchase, as noted on the bill of sale or receipted invoice from
an authorized Krell dealer or distributor.

The warranty for Krell products is valid only in the country to which they were originally
shipped, through the authorized Krell distributor for that country, and at the factory. There
may be restrictions on or changes to Krell’s warranty because of regulations within a 
specific country. Please check with your distributor for a complete understanding of the 
warranty in your country.

If a unit is serviced by a distributor who did not import the unit, there may be a charge for
service, even if the product is within the warranty period.

Freight to the factory is your responsibility. Return freight within the United States (U.S.A.) is
included in the warranty. If you have purchased your Krell product outside the U.S.A. and
wish to have it serviced at the factory, all freight and associated charges to the factory are
your responsibility.

Krell will pay return freight to the U.S.A.-based freight forwarder of your choice. Freight and
other charges to ship the unit from the freight forwarder to you are also your responsibility.

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 factory. You are responsible for filing claims
for shipping damages during the return shipment.

Krell does not supply replacement parts and/or products to the owner of the unit.
Replacement parts and/or products will be furnished only to the distributor performing 
service on this unit on an exchange basis only; any parts and/or products returned to Krell
for exchange become the property of Krell.

No expressed or implied warranty is made for any Krell product damaged by accident,
abuse, misuse, natural or personal disaster, or unauthorized modification.

Any unauthorized voltage conversion, disassembly, component replacement, perforation of
chassis, updates, or modifications performed to the unit will void the warranty.

The operating voltage of this unit is determined by the factory and can only be changed by
an authorized Krell distributor or at the factory. The voltage for this product in the U.S.A.
cannot be changed until six months from the original purchase date.

In the event that Krell receives a product for warranty service that has been modified in any
way without Krell authorization, all warranties 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 specifi-
cations will be charged to the customer, at current parts and labor rates.

All operational features, functions, and specifications and policies are subject to change
without notification.

Warranty

To register your product 
for warranty benefits,
please complete and return
the Warranty Registration
Card enclosed in the ship-
ping box within 15 days of
purchase. Thank you.

13

Krell S-150m

Summary of Contents for S-150m

Page 1: ...THE LEADER IN AUDIO ENGINEERING S 150m Mono Power Amplifier Instructions for Use Owner s Reference ...

Page 2: ...Watts that does not require big space SMT allows individual circuit elements to be placed very closely together This shortens signal paths and allows circuit elements to operate at the same temperature resulting in more accurate signal transfer and enhanced reliablilty The S 150m is a slim line design allowing five amplifiers to fit into a space normally occupied by one This owner s reference con ...

Page 3: ... dB more gain than single ended connections and allow the use of long interconnect cables Balanced connections are completely immune to induced noise from the system or the environment Single ended A two wire input or output circuit Use care when using single ended connections as the ground connection is made last and broken first Turn the system off prior to making or breaking single ended connec...

Page 4: ... blue The component is in the operational mode and is ready to play music 12VDC Trigger The S 150m may be turned on remotely via a 12 volt trigger Connect the 12V trigger output from a compatible device to the 12VDC trigger input The S 150m will go from stand by to opera tional mode when a 12 volts signal is applied The S 150m will return to Stand by when the 12 volt signal is removed The S 150m c...

Page 5: ...f the amplifier behind the faceplate move the jumper labeled POWER from the two pins labeled MANUAL to the pins labeled AC See Figure 1 BACKLIGHT ON OFF The S 150m power indicator may be disabled so that it is not illumi nated in stand by default is red or operational mode default is blue Follow these steps to disable the S 150m power indicator 1 Unplug the S 150m from the AC power outlet 2 Use a ...

Page 6: ...he Quick Setup Guide and the warranty registration card 2 Grasp the underside of the amplifier and lift it straight out of the packing box 3 Place the amplifier in a safe location and remove the protective plastic wrapping If any of these items are not included please contact your authorized Krell dealer Save all packing materials If you must ship your S 150m in the future repack the unit in its o...

Page 7: ...e amplifier as close to the loudspeakers as possible and keep loudspeaker cable lengths to a minimum Loudspeaker cable adds impedance to the load the amplifier must drive regardless of the cable s gauge All Krell amplifiers drive the lowest impedances with ease but long loudspeaker cables reduce the maximum power that can be delivered to the loudspeakers The S 150m has superb regulation and does n...

Page 8: ...4 The S 150 rear panel 7 Krell S 150m Front Panel 1 Power Button 2 Power Indicator Rear Panel 3 Input Switch 4 Balanced Analog Input 5 Single ended Analog Input 6 12 VDC Trigger In Out Power 7 Speaker Connectors 8 IEC Connector Fuse Holder ...

Page 9: ...hed to the operational mode The indicator turns blue when in operational mode The S 150m back panel provides connections for all inputs and outputs power on off and additional remote connections 3 Input Switch Set this switch for the style of connection being used balanced XLR or single ended RCA 4 Balanced Analog Input The S 150m is equipped with one balanced input via XLR connec tor 5 Single End...

Page 10: ...ponents and other devices that incorporate a 12 V trigger The 12 VDC output current is limited to 30 ma 7 Speaker Connections The S 150m is equipped with standard binding posts for each amplifier channel These connectors accept bare wire pins banana plugs or spade lugs Use the red terminal for the positive connection and the black terminal for the negative connection 8 IEC Connector Fuse Holder Th...

Page 11: ... Connect the loudspeaker cables to the amplifier s loudspeaker output terminals 7 The S 150m is equipped with standard binding posts for each amplifier channel These connectors accept bare wire pins banana plugs or spade lugs Use the red terminal for the posi tive connection and the black terminal for the negative connec tion 4 Connect the output s of your preamplifier processor to the appro priat...

Page 12: ...lly attenuated Krell amplifiers have large reserves of clean power and can safely drive loudspeakers to higher sound pressure levels than other amplifiers However use care when setting high playback levels and lower the vol ume level at any sign of loudspeaker distress When powering up any system always turn amplifiers on last When powering down always turn amplifiers off first When the amplifier ...

Page 13: ...d are of sound construction With the amplifier off remove the interconnect cables then turn the amplifier on If the hum disappears turn the amplifier off and reinsert one of the interconnect cables Turn the amplifier back on If the hum reappears with one or both cables reinserted there may be a defective cable Have the intercon nect cables checked before proceeding If the interconnect cables are s...

Page 14: ...ide the U S A and wish to have it serviced at the factory all freight and associated charges to the factory are your responsibility Krell will pay return freight to the U S A based freight forwarder of your choice Freight and other charges to ship the unit from the freight forwarder to you are also your responsibility Krell is not responsible for any damage incurred in transit Krell will file clai...

Page 15: ...rtment have been made in advance Proof of pur chase will be required for warranty validation at the time of hand delivery Use the original packaging to ensure the safe transit of the product to the factory dealer or distributor Krell may at its discretion return a product in new packaging and bill the owner for such packaging if the product received by Krell was boxed in nonstandard packaging or i...

Page 16: ...S 1 loudspeaker via 2 standard binding posts OUTPUT VOLTAGE Peak to Peak 99V OUTPUT POWER 150 300 WPC 8 4 Ohms REMOTE CONTROL 1 12 VDC trigger Ouput 1 12 VDC trigger Input DIMENSIONS 3 40w X 5 66h X 21 90d in 86w X 144h X 556d mm WEIGHT Shipped 21 0 lb 9 5 kg Unit only 17 0 lb 7 7 kg Krell Industries LLC 45 Connair Road Orange CT 06477 3650 USA TEL 203 799 9954 FAX 203 891 2028 E MAIL krell krello...

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