AVSL STA40 User Manual

STA40-WIFI

Mini WiFi Streaming Amplifier

Item ref: 103.110UK

User Manual

Version 1.0

Caution: Please read this manual carefully before operating

Damage caused by misuse is not covered by the warranty

103.110UK User Manual

Introduction

Thank you for choosing the STA40-WIFI mini WiFi streaming amplifier as part of your
background music system. The wireless connectivity of this product brings together online
audio content and smart phone app control for almost unlimited playback possibilities.

Front panel

Rear panel

1

POWER indicator

2

LINE IN indicator

3

WIFI indicator

4

WPS button

5

VOLUME + SELECT

6

WiFi antenna

7

LINE IN (L+R RCA)

8

LINE OUT (3.5mm stereo jack)

9

Right Speaker output terminals

10

Left Speaker output terminals

11

24Vdc power inlet DC jack

12

POWER on/off switch

103.110UK User Manual

Connections and Setting Up

Position the STA40-WIFI on a stable surface within clear reception of the local WiFi signal and where
controls and connections are accessible.

The unit is powered by the supplied in-line 24Vdc power adaptor. With the power switched off, connect
the DC jack of the power adaptor to the rear panel power inlet (11) and connect the mains lead to the
fig.8 socket of the in-line adaptor with the mains plug connected to a suitable mains outlet.

The rear panel WiFi antenna (6) is adjustable but not detachable. Move the antenna so that it points
upwards or outwards from the amplifier for an improved reception.

If a playback device is to be used, connect this to the L+R LINE IN RCA sockets on the rear panel (7).

If the output signal of the amplifier is to be fed onto further equipment, a 3.5mm LINE OUT socket on the
rear panel (8) provides stereo line level output for connecting to the input(s) of additional amplifier(s) or
active speakers.

The STA40-WIFI can power 2 speakers (left + right) with a power handling of 20Wrms each and an
impedance of 8Ω or 16Ω. Note: the STA40-WIFI cannot operate with 4Ω speakers

Connect the L & R SPEAKER OUTPUT binding posts to the left and right speakers by connecting the “+”
to “+” and “-” to “-” for each one, using suitable speaker cable (9, 10)
(0.3mm² CSA or 2.5A rated is recommended)

Operation

When all connections are made, switch the power on to the amplifier and the POWER LED (1) will light.
One of the other 2 source LED indicators will also light. If the illuminated LED is LINE IN (2), the RCA
inputs will be active. If the illuminated LED is WIFI (3), this will flash until WIFI is connected.

Fast flashing = Wifi not connected (searching for WiFi)
Slow flashing = WiFi connected but no app control
Solid light = WiFi connected and app control

If a line input source is available (CD, mp3 player etc.), use this for initial checking.
If only WiFi input is available, it will be necessary to follow the WiFi and App setup later in this manual.

Play a signal into the amp and adjust the output by rotating the VOLUME control (5) left or right.
The output volume can vary from 0 (left) to 100% (right) but the control will continually rotate.
Check the output through each speaker to ensure all input and output signals are working correctly.

To switch between LINE IN and WIFI, push the VOLUME control in briefly.

To reset the STA40-WIFI to factory settings, press and hold the WPS button for 5 seconds.
When both WIFI and LINE IN LEDs are flashing, switch the unit off and on again.
When the STA40-WIFI is powered up again, the unit should be back to factory settings.

Turn down the VOLUME control before powering down to avoid loud noises through the speakers.