7
connected to the amplifier unless the Ch 2 switch is in the depressed or
on position. If you are not hearing channel 2 in the output, check to be
sure that the switch is on.
Effects (Clarus 2R and Focus 2R)
Our high-quality
effects units (which use the Alesis DSP chips) offer 6
program selections: 3 reverb programs (Hall, Room and Plate), a delay, an
ambient chorus and a flanger. There are switches to select which of the two
channels are processed by the effects unit. Either channel can be connected to
the effects unit. If both switches are engaged, the selected program appears in
both channels. A level control affects the level of the reverb signal that is mixed
with the “dry” signal to control the overall effect of the selected program. You
should experiment with both the program selection and the level control to find
the sound that you prefer. When effects are not used, the switches for both
channels should be off and the level control should be turned fully
counterclockwise.
Speakers are connected to the amps via Neutrik Speakon connectors (”twist
lock” type). These connectors are used because of their low contact resistance
and non-shorting operation. The output of each Speakon connector is wired to
pole “1.” Make sure the cables you use to connect a speaker are similarly
wired. Cables with Speakon connectors are available from Acoustic Image if
you are unable to obtain them from your local music store. One 6 foot Speakon
to 1/4 inch cable is supplied with the unit.
The power amp of both the Clarus and Focus amps is capable of driving
speaker loads as low as 2 ohms. Use a high quality speaker system in order to
get the maximum performance from the amp. The Acoustic Image Contra EX is
an excellent choice.
The power amp is short circuit protected. If a short is connected to one of the
speaker jacks, the output signal will be interrupted until the short is removed. If
a short is present, you will hear a ticking sound at 3 to 4 second intervals which
indicates that the short circuit protection is working.
We highly recommend the use of Speakon connectors at both the amp and
speaker ends of the connecting cable. If you use these connectors, you will get
the highest possible performance and reliability from your amp. Conversion of
your speaker to Speakon connectors is a simple job. Contact your local repair
shop or Acoustic Image for more information.
All Acoustic Image amps can be operated without a speaker load if required.
Power Amp
To be on the safe side,
you should shut off the power to the amp before connecting or
disconnecting speakers from the unit.
When operating without a speaker attached, turn the master level to zero
(all the way counterclockwise). This will prevent the power amp section
of the amp from being driven and protect it from damage.
Focus SA
Care
The Focus SA is a standalone power amp that is designed to be used with any
preamp or to be used in conjunction with another integrated amp (such as our
Clarus or Focus amps) to increase the total system power output. The Focus
SA uses the same power amp section as our Focus amps so it has the same
sound and specs as those amps.
The Focus SA is connected as shown in the diagram below. One or two
speakers are connected via the Speakon connectors on the rear panel (2 ohm
minimum load). The output of a preamp is connected directly to the input of the
SA using either a ¼ inch plug or an XLR plug. The level control is used to adjust
the sensitivity of the SA to the output of the preamp.
The small size and light weight of the amps allow them to be placed almost
anywhere that is convenient for the performer. The best results will be achieved
from the amp/speaker combination if the resistance of the speaker cable is
kept as low as possible. That means that a shorter cable is better.
The amp chassis is made of powder coated aluminum. A little caution in how it
is handled will keep it looking new for years to come. Use a clean, dry cloth to
wipe the surfaces of the amplifier. Note that there are no user-serviceable parts
inside the amp. Refer servicing to qualified Acoustic Image or other
technicians.
We stand behind our products with a full warranty of five years from the date of
purchase. Should a problem arise, please call us before returning your
amplifier or enclosure. Naturally, our warranty does not cover products that
have been damaged through misuse. Be sure to check our web site regularly,
we have an FAQ section and we post helpful information for getting the most
out of your Acoustic Image product.
DO NOT CONNECT A
SPEAKER OUTPUT TO THE INPUT OF THE SA. THAT WILL DAMAGE THE
AMP.
Amp Placement
Warranty and Repair
8
Preamp
Focus SA
Speaker 1
Speaker 2
Send out
Direct out
Focus or Clarus amp
Input
Output
Speaker
outputs
Any of these outputs
can be connected to
the input of the SA
Do not connect speaker
outputs to the input of the SA
Содержание Clarus 2R
Страница 1: ...Integrated Amplifiers ...
