Owner's Manual

4826 Sterling Drive, Boulder, CO 80301 Owner’s Reference

PH: 720.406.8946 support@psaudio.com www.psaudio.com 15-070-01-1

Rev B

Owner’s Reference

Owner’s Reference BHK Signature Ampliers

Leave It On

Standby

Logo Light Fault

Mode

You are now ready to enjoy your rst listen to the BHK Signature Amplier. Making sure the

preamplier and the system is on, push the front panel standby button on the BHK front panel.

The light will blink for 30 seconds as the tubes warm up. When the blinking stops and the PS

logo turns steady on, the amplier is ready to play music.

Once the amp is on for the rst time, we recommend leaving it on for 24 hours, then placing

it in standby whenever you are nished listening. Placing the amplier in standby through the

front panel standby button helps preserve tube life, yet keeps the BHK warmed and ready to

go.

Placing the BHK in standby mode reduces the idle current and the MOSFET circuitry will stay

active at a reduced heat. In standby it is permissible to change inputs and output connections

as no signal may pass. It is not recommended to change tubes while in the standby mode. If

you wish to change tubes, please remove all AC power from the unit and wait at least thirty

minutes once power has been removed before changing tubes.

If the front panel logo light begins blinking and no sound comes from the amplier it means the

BHK has gone into fault mode. This can happen for a number of reasons including: protection

from low impedance, short circuit protection on the speaker terminals, exceeding the amplier’s

wattage rating, excessive heat, or DC present on the outputs.

Typically you can just press the logo button and the amplier will return to normal operation. If

the amplier tries to turn on and returns to protection mode, check all of the aforementioned

causes and correct the problem before trying again. If nothing seems wrong, remove both

inputs and outputs and try again. If that still does not release the unit from protection mode,

remove all power from the amplier and check the fuses. In the unlikely event none of these

remedies work, call your dealer, or PS Audio, for help.