The ATT100 is intended to interface a 100V line speaker system to a high
impedance balanced line input such as those found on Ampetronic preamplifiers
and induction loop amplifiers. The unit provides a balanced resistive attenuation
of -40dB.
The standard version of the ATT100 is not suitable for use with unbalanced or low
impedance inputs, nor should it be connected to microphone inputs of any type.
1. 100V line connection
The 100V speaker line should be connected to the 3-pin input plug as shown
below.
The safety ground connection is not essential and does not connect through the
ATT100. Similarly, the polarity of the 100V line connections is not critical.
Do NOT insert the 3-pin plug into theATT100 at this stage.
ATT100
100 Volt Adapter
+
-
100V
LINE
SAFETY
EARTH
(IF FITTED)
INSIDE VIEW OF CONNECTOR
}
2. Output connection.
The ATT100 should be plugged directly into the line level input of the amplifier or
preamplifier. This input must be balanced and high impedance. Note the
restrictions on use at the head of this sheet.
Under no circumstances should the output be extended, not even using a
screened cable. The connection is high impedance and would be susceptible to
interference.
When the ATT100 has been connected to the equipment input, the 3-pin plug from
the 100V line may be inserted into the ATT100. The unit is now installed and ready
for use.
Warranty Information
This product carries a five year parts and labour warranty from date of shipment
from Ampetronic. To qualify for the five year warranty, the product must be
registered at (products/warranty), without which the
warranty will be valid for two years only.
The warranty could be invalidated if the instructions in this handbook are not
followed correctly, or if the unit is misused in any way.
TheATT100 is designed and manufactured in England byAmpetronic Ltd.
DECLARATION OF CONFORMITY
Manufacturer: Ampetronic Ltd.
Address: Northern Road, Newark,
Nottinghamshire, NG24 2ET.
United Kingdom.
Declares that the product:
Description: 100 Volt Line Adapter
Type Name: ATT100
Conforms to the following Directive(s) and Norm(s):
Directive 2004/108/EC
EMC: EN55103-1 : 2009 Emission
EN55103-2 : 2009 Immunity
Directive 2006/95/EC
Safety: EN60065 : 2002
Date : January 2011
J.R. Pieters
Managing Director
Ampetronic Ltd.
www.ampetronic.com
UP11201-4
Ampetronic Ltd,
Northern Road, Newark,
Nottinghamshire, NG24 2ET
United Kingdom
Tel: +44 (0) 1636 610062 Fax: +44 (0) 1636 610063
