AV123 ERT Owner's Manual

ERT SUPER TWEETER

USER GUIDE

Thank you for purchasing AV123 ERT super tweeters. We highly recommend that you
read this brief user guide before connecting your ERT to your speakers.

Each pair of AV123 ERT’s are precisely measured for mutually matched sensitivity.

Rear Side

15 KHZ + Positive Speaker Terminal

11 KHZ + Positive Speaker Terminal

Output Level Controller

Negative S peaker Terminal

MAX. MIN.

HOW TO CONNECT

1. First, use the supplied jumper cable to connect the negative binding post of your
speaker to the negative terminal on the ERT. It is ok to run a parallel connection
with your speakers. This is how the ERT is designed to be used. You do not
need a separate amplifier for the ERT or direct line from your current amplifier.

2. For the positive speaker terminal, you can choose between a 15KHz crossover or
11 Khz crossover. This is the designation for the lower frequency limit on your
ERT. The correct crossover setting to use will vary depending on your speaker’s
original design and high frequency characteristics. We recommend some
experimentation here to determine which crossover setting integrates best with
your speakers and, ultimately, which one you prefer.

3. The output control function allows you to passively adjust the amplitude of the ERT.
There are four stepped settings for this control. Using this, you can more
accurately integrate the ERT into your speaker system. If you have
measurement tools such as an SPL meter or more sophisticated equipment, you
can specifically set the optimum output based on your own frequency
measurements. This can also be done simply by ear.

SPECIFICATION

DRIVER UNIT: Magnetostatic super tweeter X 1pc
FREQUENCY RESPONSE 8KHz – 45KHz (+/- 3dB)
IMPEDANCE 4 Ohm
EFFICIENCY 92dB (@ 1 Watt / 1 Meter)
DIMENSIONS (WxDxH) 12.0 x 13.0 x 12.8 cm
WEIGHT 2.0 Kgs / pair

AV123.com ··· 1001 Delaw are Ave. Suite C Longmont, C O 80501 ··· [e-mail]