Questions and Answers
Q. Should I leave my Full Power Balanced amplifier on at all times?
A.For maximum amplifier performance, leave the back panel power breaker switch on at all times. This places the amplifier in
Q.When I turn on the amplifier there is a loud hum through the speakers. What should I do?
A.When a new component is introduced, a low frequency hum may occur in one or both speak- ers. Check all input and output connections and cables, making sure they are of sound con- struction. See How to Troubleshoot System Noise, on page 17. If the interconnects and cables are sound, you may be experiencing a ground loop. This can often be easily eliminat- ed. Please contact your authorized Krell dealer, distributor, or Krell for suggestions on how to solve this problem.
Q.My system includes multiple pairs of speak- ers. Can I connect them to my Full Power Bal- anced amplifiers through a speaker selector box?
A.No. Most speaker selector boxes use a com- mon ground scheme. The differential circuitry in 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, as it may
Q.My speakers have only one pair of binding posts, but my Full Power Balanced stereo amplifier has two pairs. Which pair of speaker binding posts should I use, the upper or the lower?
A.The upper and lower pair of speaker bind- ing posts on Full Power Balanced stereo ampli- fiers are identical. You can use either the upper or lower pair; they work and sound the same. See Connecting the Full Power Balanced Amplifier to Your System, on page 13.
Q.My speakers are rated for 150 Watts. Are the Full Power Balanced 400cx or 700cx mod- els too powerful for them?
A.No. A speaker seldom is damaged from overdriving. More often, damage occurs when an amplifier that lacks sufficient power is asked to handle heavy demand situations such as high playback levels. These amplifiers may have very high 8 Ohm power ratings, but in heavy demand situations they can be driven into clipping (in which DC current goes to speakers due to loss of amplifier power). Clip- ping can damage speakers. Avoid damage to your speakers by reviewing your speaker’s specifications and exercise caution in heavy demand situations.
Krell Full Power Balanced X Series Power Amplifiers | 19 |
