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Operating the Reference KPE

8

Krell KPE

The Reference KPE is designed to only work with a moving coil
phono cartridge. The Reference KPE comes factory set with a 70 dB
gain and a 100 Ohm load impedance setting.

If it is necessary to change the gain or cartridge loading, follow these
steps:

1. Remove the four topcover screws with the supplied Torx wrench.

2. Carefully lift the cover from the Reference KPE. The two switch

settings for gain are located towards the middle of the board and
are labeled GAIN. The switch settings for loading are located
towards the back of the board and are labeled LOADING.

Always put your preamplifier in the mute or stand-by position before
changing gain or loading settings on the Reference KPE. Maintain the
mute or stand-by state for one minute after changing any settings, to
allow circuits to settle.

3.  To alter gain from the 70 dB factory setting, set one rocker switch

from each bank to the CLOSED (on) position to obtain the
desired setting:

Switch 1 = 58 dB gain

Switch 2 = 64 dB gain

Switch 3 = 70 dB gain

Switch 4 = 76 dB gain

Each switch bank is labeled OPEN on one side. When a rocker switch on
the switch bank is depressed toward the side labeled OPEN, the switch is
OPEN, or off. When a rocker switch is depressed away from the side
labeled OPEN, the switch is CLOSED, or on.

GAIN SETTINGS

I

MPORTANT

Note

Summary of Contents for KPE

Page 1: ...Reference KPE Standard KPE Phono Preamplifiers s Instructions for Use Owner s Reference THE LEADER IN AUDIO ENGINEERING ...

Page 2: ...ustries Inc All rights reserved P N 306104 The preamplifier must be placed on a firm level surface where it is not exposed to dripping or splashing The ventilation grids on the top of the preamplifier and the space underneath the preamplifier must be unobstructed at all times during operation Do not place flam mable material above or beneath the preamplifier Before making connections to the preamp...

Page 3: ...DEFINITION OF TERMS 2 UNPACKING 3 PLACEMENT 4 AC Power Guidelines 4 CONNECTING THE KPE TO YOUR SYSTEM 5 OPERATING THE REFERENCE KPE 8 OPERATING THE STANDARD KPE 10 WARRANTY 12 RETURN AUTHORIZATION PROCEDURE 13 SPECIFICATIONS Back Cover Page ...

Page 4: ...iv Krell KPE FIGURE 1 Reference KPE Phono Board 6 FIGURE 2 Standard KPE Phono Board 7 Illustrations Page ...

Page 5: ...installation information In the unlikely event that your KPE should require service you will be pleased to know that it 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 Return Authorization Procedure sections of this reference the...

Page 6: ...f prior to making or breaking single ended connec tions Single ended connections are not recommended for connec tions requiring long cable runs Off When the KPE is not connected to AC power and the blue LED on the front panel is not illuminated the component is off Operational Mode The component is in the operational mode and is ready to play music as soon as AC power is supplied to the KPE The bl...

Page 7: ...the box and remove the top layer of protective foam The fol lowing items are visible 1 KPE phono amplifier 1 DC power connecting cable 1 T15 Torx wrench 1 warranty card If ordered with the optional power supply the following items will also be included 1 KPE power supply 1 AC power cord Remove the plastic covering from the Standard KPE DC power cable and if included from the power supply If any of...

Page 8: ...e This enables the user to employ short interconnect cables from the turntable to the KPE and a longer run of interconnect cables from the KPE to the preamplifier Placement The KPE has superb regulation and does not require a dedicated AC circuit Avoid connections through extension cords or multiple AC adapters High quality 15 amp grounded AC strips are accept able High quality AC line conditioner...

Page 9: ...er one of the DC power cable to the DC input receptacle on the KPE 3 Connect the output of your turntable to the input of the KPE 4 Connect the output of the KPE to a line level input on your pre amplifier 5 Plug the KBL KRC 2 or KCT to the external KPE power supply into the AC wall socket The blue LED on the KPE will now be illu minated Allow the Reference KPE to warm up for one minute after the ...

Page 10: ...1 1 1 1 1 1 2 3 2 3 1 Mounting Hole 2 Loading Switch 3 Gain Switch Bank Figure 1 Reference KPE Phono Board 6 Krell KPE ...

Page 11: ...4 4 4 4 4 4 6 5 5 4 Mounting Hole 5 Loading Switch 6 MMMC Moving Coil Moving Magnet Switch Bank Figure 2 Standard KPE Phono Board Krell KPE 7 ...

Page 12: ...of the board and are labeled LOADING Always put your preamplifier in the mute or stand by position before changing gain or loading settings on the Reference KPE Maintain the mute or stand by state for one minute after changing any settings to allow circuits to settle 3 To alter gain from the 70 dB factory setting set one rocker switch from each bank to the CLOSED on position to obtain the desired ...

Page 13: ...re situated on the left and right of the circuit board The loading switches are labeled as follows 1 10 Ohms 2 25 Ohms 3 47 Ohms 4 100 Ohms 5 249 Ohms 6 475 Ohms 7 825 Ohms 8 1000 Ohms 1 K Experiment with different types of loading until you find the one that sounds best Always have one switch CLOSED on for both channels 5 Place the topcover back on the Reference KPE and replace the topcover screw...

Page 14: ...in circuit board The two switches locat ed at the back of the circuit board labeled LOADING are for car tridge loading The switch bank in the middle of the circuit board labeled MM moving magnet and MC moving coil is for phono gain 3 Select the type of phono cartridge you are going to use 4 Use the C2 and C4 MC positions on the MMMC switch bank Depress the rocker switch in the direction of the lab...

Page 15: ...ms 8 1000 Ohms 1 K All open 47000 Ohms 47 K Each switch bank is labeled OPEN on one side When a rocker switch on the switch bank is depressed toward the side labeled OPEN the switch is OPEN or off When a rocker switch is depressed away from the side labeled OPEN the switch is CLOSED or on If the manufacturer does not supply a loading value use 100 Ohms switch 4 on both channels Experiment with dif...

Page 16: ... S A is included in the warranty If you 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 respon sibility 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 ...

Page 17: ...e been made in advance Proof of purchase 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 if the origi...

Page 18: ... RATIO A WEIGHTED w 0 5 mv input MC 71 dB MM 89 dB GAIN MC 64 5 dB MM 36 5 dB INPUT IMPEDANCE Adjustable from 10 Ohms to 47 K Ohms POWER SUPPLY Optional DIMENSIONS KPE 7 1w x 2 4h x 12d in 18w x 6 1h x 30 5d cm POWER SUPPLY 8 3w x 2 5h x 6 5d in 21 1w x 6 4h x 16 5d cm WEIGHT WITHOUT POWER SUPPLY Shipped 12 lb 5 5 kg Krell Industries Inc 45 Connair Road Orange CT 06477 3650 USA TEL 203 799 9954 FA...

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