Installation
The Illusion amplifier does not have to be near the stereo equipment
but long line level audio runs are not recommended. It is better to
have long speaker wire runs rather than source audio wire runs. If
long line level audio runs are required, we suggest using the Knoll UTP
stereo balun balancing system to avoid electro magnetic interference.
Avoid installing the Illusion amplifier in high heat or humidity areas.
Connect the mono or stereo source to the Illusion gold RCA jacks
labeled INPUT using good quality short as possible RCA jack cables.
Connect the speakers to the Illusion using good quality 18-12 gauge
wires. If the wires are mounted inside a wall, fire rated wire may be
required. Speaker polarity is important. Wrong polarity or out of phase
speaker wiring will make the bass response of the speakers poor.
Carefully check that the + of speakers are connected to the + of the
Illusion terminals.
Connect the power supply to the Illusion jack labeled “Power”. If the
stereo source has a switched outlet we suggest plugging the power
adaptor into the switched outlet.
Plug the power supply or supplies into the wall. After the system
powers up and the source is on and running, adjust the volume/gain
as needed.
Operation
Turn the source on and confirm it is operating.
Turn the Illusion on by plugging in the power supply or switching the
power supply on and switching the power switch on the Illusion front
face on. When the power in on the Illusion amplifiers blue LED will be
on.
Use the Illusion volume to turn the volume up to the desired level.
Note:
The illusion amp may be hot to the touch after operating for
some time. This is normal.
Knoll Systems service information
The Illusion amplifier does not contain any user serviceable parts
inside. If you suspect a problem that may require servicing, contact us
at
www.knollsystems.com/info.html
, or by phone at 800 566-5579.
Troubleshooting
If a problem is encountered with the Illusion amp, the most
expedient procedure is to locate the problem and if possible
repair it before requesting service. Be sure to carefully check
other system components such as controllers, CD players,
volume controls, wiring, speakers, etc. that may be at fault.
Problem
Action
Power LED does
1. Check that the amp power supply is
not light - no sound plugged in.
2. Test the AC outlet with a lamp.
3. Check Illusion power button on (in).
Sound cuts out
1. Verify speaker impedance is 2-16
ohms.
Changing speakers may be required.
2. Check if the Illusion feels hot. If it's
hot increase cooling.
Sound is distorted
1. Turn the volume down.
2. Check speakers for damage.
3. Check inputs for proper levels.
Illusion gain and source output level
may have to be adjusted.
4. Speakers may be less than 4 ohms.
Speaker pops when 1. Speaker may need resistor placed
amp turned on or off across terminal. Suggest 2k0 1/4 w.
Discharges speaker internal cap.
