Knoll Illusion M Installation Instructions Manual

Warranty

Knoll Systems warrants Illusion Amplifiers sold in the USA and Canada by
authorized Knoll dealers to be free of defects in materials and workmanship.
This warranty extends for three full years from the date of purchase by the
original consumer. Any products returned to Knoll Systems and found to be
defective by Knoll Systems within the warranty period will be repaired or
replaced at Knoll Systems option, at no charge. Knoll Systems will not be
responsible for the actual cost of installation or removal of the product, nor for
any incidental or consequential damages. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above
limitation may not apply to you. This warranty gives you specific legal rights.
You may have additional legal rights that vary from state-to-state.

Specifications:

Inputs

Gold RCA jacks with adjustable gain

Input impedance

55k ohms

Outputs

Detachable 2 position connector

Output power

15 watts RMS (8 ohms)

Peak output power

20 watts (8 ohms)

Ideal impedance

4 - 8 ohms

Frequency response

10 Hz - 40 kHz +/- 1dB (1w)

THD distortion

less than 1% 20 Hz to 20 kHz

IMD distortion

less than 0.5% 60 Hz 7 kHz 4:1 (SMPTE)

Dimensions

4-1/2” x 1-3/4” x 4-1/4” (114 x 43 x 107mm)

Weight

¾ lb. (0.35 kg) without power supply

Power Supply

15VDC (included)

Knoll Systems

145 Tyee Drive Point Roberts, WA 98281
15-7163 Vantage Way, Delta BC V4G 1N1
Tel: [phone]
Made in Canada

Illusion Mono
Amplifier

Installation Instructions v1.1

Warning: To be installed and/or used in accordance with appropriate

electrical codes and regulations.

Description: The Illusion mono amplifier is a 15-watt RMS high­fidelity amplifier. Stable from 2 to 16 ohm loads, the Illusion M
amplifier is very easy to use with just a power switch and a volume
control. Illusion amplifiers designed to meet the amplifier needs of
custom installed systems where high-quality sound is a specific
requirement. It can be powered directly by a 12-15 volt DC source or
with the included AC power adaptor. It can be easily made into a 70
volt amplifier by adding a 70 volt transformer.

 Small size, big sound. Fits almost anywhere.
 Amplifier has 15 watt RMS rating.
 Each channel is protected from overheating,

overloading, overvoltage and undervoltage. The
protection circuitry automatically restores the amplifier
channel as soon as its parameter returns to the safe
operating area.

 2-16 ohms stable. Goes with almost any speaker.
 Shipped with 100-240 VAC power adaptor.

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.