Owner's Manual

4826 Sterling Drive, Boulder, CO 80301 Owner’s Reference
PH: 720.406.8946 [e-mail] www.psaudio.com 15-070-01-1
Rev B
Owner’s Reference
©2021 PS Audio Inc. All rights reserved.
®
Owner’s Reference BHK Signature Ampliers
Once your BHK is unpacked, you’ll need to nd a convenient place to set it. We recommend
oor mounting on a platform or shelf mounting as close to the speakers as possible. If the
source equipment (preamp or DAC) is far away from the BHK, it is recommended to use
balanced interconnects if possible.
Once you have chosen the location for the BHK you can use the supplied AC power courtesy
cord to connect it to the AC power or you can use an aftermarket power cord. Power cords
make a dierence and we do not recommend using the supplied power cord for critical listening
or long term use. We strongly recommend the use of a PS Audio PerfectWave
®
Power AC cable
or any excellent aftermarket power cable for best results as it is always preferable to feed your
equipment with the best power cables possible. Choosing an excellent power cable will make a
signicant performance improvement over the stock power cable.
The BHK should be fed from a P10 Power Plant
®
to improve its eectiveness. Use of other
power conditioners with the amplier is ne as long as you make sure the unit benets from their
use. We do not recommend using a passive line conditioner as most tend to rob the BHK of its
rich sound qualities.
The BHK, as with all PS Audio products, is country specic to its incoming AC voltage. This
means the units can only be operated at its preset voltages, such as 230 for most of Europe and
Asia, 100 volts for Japan and 120 for the US and other similar countries.
Immediate damage can occur if you try and power the BHK on a voltage it was not designed to
operate on.
Connecting cables matter. Carefully choose your speaker cables and connecting cables to the
equipment. Our preference for input cables is balanced, XLR type, but well built single ended
RCA cables are ne as well. Speaker cables can make or break the performance of an amplier
and great care should be taken in using only the best match for your loudspeakers and BHK
amplier.
Burn-in is important. The BHK Signature has been tested, burned in for 24 hours, then fully
tested again before shipping to you. Additional extended on-time for the unit is important and
its sound will change over time in a process known as burn-in. We recommend turning the unit
on for at least 24 hours before critical listening begins. Many users report 100 to 200 hours of
runtime is needed for best performance. We nd that several days of runtime is sucient to
enjoy the majority of audio benets.
We recommend leaving the rear panel power switch active at all times, but placing the unit in its
standby mode when listening has been nished. Standby can be activated by pressing the front
panel PS Audio logo button, located on the upper left hand corner of the BHK Signature front
panel. When the logo standby button is not lit, the amplier is in standby mode, and the vacuum
tubes are turned o. Standby mode keeps the solid state circuitry of the amplier in a reduced
power mode, maintaining excellent performance benets while consuming little power.
Power Cables
Location
Conditioners
Cables Matter
Country Specic
AC Voltages
Burn-in
Standby
1