Infinity Crescendo Series User Manual

DO NOT ATTEMPT TO EMPLOY TWO
SEPARATE AMPLIFIERS WITHOUT FIRST
REMOVING THE SHORTING STRAPS ON
THE REAR OF THE SPEAKER.
DO NOT REMOVE THE SHORTING
STRAPS WHEN USING ONLY A SINGLE
POWER AMPLIFIER (except when bi-wiring.
Refer to the next section.)
If your amplifiers are not equal in power, always
use the amplifier with the higher power (or greater
current capability) to drive the woofers. When
using two different amplifiers, it is recommended
that at least one of the amplifiers has a level control
which will permit you to set the level of one of the
amplifiers to balance the other, resulting in equal
output feeding the woofers and midrange/tweeter
sections.
BI-WIRING
FIGURE 3 -
Connecting your speaker
for hi-amp operation
LEFT SPEAKER
REMOVE
SHORTING
STRAPS
TWEETER R
MIDRANGE _
AMPLIFIER FAB
BASS
AMPLIFIER
Many audiophiles recommend using two
connecting wires instead of one because two wires
share current through a greater conducting area
(and for many additional reasons that we cannot
verify but which we accept as true because we hear
a difference in favor of bi-wiring).
If you wish to bi-wire your Crescendo Series
speakers with a single power amplifier, remove
the two shorting straps on the rear of the speaker
which separates the woofer and midrange/tweeter
sections of the crossover network. Two parallel
speaker wires are connected to the amplifier’s
output (for each channel) and the other ends
of the wires are connected to the woofer and
midrange/tweeter sections of the speaker.
See figure 4.
POSITIONING YOUR SPEAKERS
Locating your Crescendo Series speakers in the
proper position within your listening room is of
primary importance if you wish to obtain the best
possible performance from your audio system.
Depending on room size and acoustics, moving
the speaker as little as an inch (2.5cm) forward,
rearward, or sideways can result in noticeable sonic
differences. We urge you, therefore, to experiment
with placement until your speakers deliver their
full musical potential.
As a useful starting point for best stereo
imaging, place your speakers at least seven feet
apart. Try to locate the speakers as far away as
FIGURE 4 -
Connecting your speaker
for bi-wire operation
LEFT SPEAKER
REMOVE
SHORTING
STRAPS
R
| + AMPLIFIER —+
lac Sala!
possible from walls and corners of the room to
reduce reflections which generally result
in sonic anomalies. Our experience has shown that
speaker placement too close to a wall or a corner
can create hardness, smearing of the sound, lack
of bass detail, and at times other forms of sonic
distortion which reduce clarity and change the
harmonic structure of music. Often as not, these
sonic anomalies are blamed on the speakers but
are really due to poor room placement. We cannot
stress too strongly the importance of room
placement and the role it plays in achieving
excellent musical balance. See Figure 5.

Infinity Crescendo Series Specifications

General

Nominal Impedance	6 Ohms
Sensitivity	90dB
Crossover Frequency	3kHz
Midrange	4"
Tweeter	1"