Knoll WTA-PACK Installation Instructions Manual

Warranty

Knoll Systems warrants WTA-PACKs 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:

Frequency response

20 Hz – 20 kHz

Transmission frequency

2400 mHz – 2483 mHz

Distortion

0.3% @ 1 kHz

Output power

25 watts RMS per channel (4 ohms)

Peak output power

30 watts per channel (4 ohms)

Ideal impedance

4 - 8 ohms

SNR

95 dB

Transmitter output

0 – 18 dBm

Amplifier power

14 VDC

Transmitter power

3.6 – 6 VDC

Transmitter dimensions

3-1/2 x 2-3/4 x 1” (89 x 70 x 25 mm)

Amplifier dimensions

5-1/2 x 4-1/4 x 1-1/8” (140 x 108 x 29 mm)

Knoll Systems

145 Tyee Drive Point Roberts, WA 98281
12140 Horseshoe Way, Richmond, BC V7A 4V5
Tel: [phone], fax [phone]

Made in China

WRA-50 Amplifier
WTA-PACK

50 Watt wireless stereo 2.4 GHz, 30 channel system
Installation Instructions v1.0

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

electrical codes and regulations.

Description: The WTA-PACK consists of a 50 watt WRA-50 amplifier and
a WLT-02 transmitter. This system boasts a 64k sampling rate (higher
than CD’s 44.1k quality) and 2.4 gHz transmission. When multiple stereo
transmissions are required, up to 30 WTA-PACK’s can operate at the
same time, in the same space without sound quality or overlap issues.
Transmission distances can vary and should be tested. The WTA-PACK

system can go thorough most walls and be reliable up to 100’ (30 m)
and 150’ (45 m) outdoor line of sight. The shorter the transmission

distance, the more reliable it will be. Transmitter remote control

included.

 Small size, HUGE sound. Fits almost anywhere!
 Stereo amplifier has 25 watt RMS per channel rating.
 Up to 30 different stereo channels can operate in the

same space at the same time.

 Transmission distances up to 100’ (30 m)
 Super high quality due to 64k sampling rate with a latency

of less than 0.5 msec.

 Transmitter remote control included.

5 VDC

ANTENNA

3.6-6 VDC
POWER
INPUT

MUSIC MIC

0dB

20dB

Standby

ONOFF

POWER

GAIN SET
SWITCH

POWER
SWITCH

Audio

Vol+

Vol-

CH+

CH-

Charge

Status

STEREO
INPUT

INFRARED
RECEIVER

VOLUME
UP/DOWN

CHANNEL
SELECT
UP/DOWN

Fig 2: WLT-02 TRANSMITTER

Installation:

The maximum transmission distance can vary depending on
several factors, including how much WI-FI traffic is taking place in
the space at any given time and how much iron and steel is
nearby. The rule of thumb is a maximum of 100’ (30 m) through
walls and 150’ (45 m) outdoor in direct line of sight. In certain
instances this system will encounter so much interference it may
not work at all. We always suggest experimenting to see if it will
work satisfactorily.

Connect the Knoll WRA-50 amplifier to the stereo speakers with
14-18 gauge wires. Plug the 14 VDC power supply into the power
outlet with the WRA-50 power switch in the off position.

Connect the WLT-02 transmitter to the stereo source using the
supplied RCA to 3.5mm stereo cord provided or another cord. Plug
the 3.5 mm stereo jack into the WLT-02 jack labeled AUDIO. Plug
the 3.6-6 VDC power supply into the power outlet with the WLT­02 power switch in the off (left) position.

Operation: Fig. 1 WRA-50 AMPLIFIER

Turn the stereo source music (iPod, CD player, stereo receiver
etc.) on to a mid comfortable volume setting if it has a control.
Move the switch on the rear of transmitter two clicks right to the
ON position. Turn the WRA-50 amplifier power switch to the on
position. If this transmitter is the only one in the area, change the

transmitter using the remote or the WLT-02 CHANNEL SELECT
push buttons to channel 25.

In most stand alone systems we suggest starting with channel 25,
as this is at the high end of the WI-FI band and is generally less
used by other WI-FI users. If a great deal of interference is

detected this system is designed to temporarily mute or “dip out”.

If this happens repeatedly, try experimenting with other channels.

Turn the WLT-02 volume using the pushbuttons or remote control
until it is mid way (about level 16 of 32). Make sure the WLT-02
gain set switch is in the left MUSIC position. Turn the WRA-50
amp volume up to about 1/3. Next push the WRA-50 CH+ button
slowly to change channels until the correct channel is chosen and
you can hear the source. Adjust the volume to a comfortable level
and enjoy. Try experimenting with the transmitter and amplifier
volume settings until the best quality sound is produced.

The Knoll tech support line is [phone] and is available
from 8:30 to 5 PM Monday to Fridays Pacific time.

- R OUT +

- L OUT +

14 VDC

POWER VOLUME

ON

OFF

LINE IN OVERLOAD STATUS CH +

POWER
SWITCH

LOCAL
STEREO
LINE
INPUT

OVERLOAD
INDICATOR

STATUS
INDICATOR

CHANNEL
CHANGING
SWITCH

VOLUME
CONTROL

ANTENNA

TO 4-8 OHM
SPEAKERS

14 VDC
POWER
INPUT