INPUT
For any distance over 25’, use a balanced source. Use the balanced XLR or
1/4” connectors featured on the rear connect plate. You may DAISY-CHAIN as
many speakers as you wish. All connectors are wired in parallel.
12dB PAD
To start the initial hook up, be sure the 12dB pad switch is in the “IN”
position. This will be the least sensitive position for your input source. If your
signal is weak, depress the Pad switch to the “OUT” position, which will raise
the level of your powered speaker.
SOFT LIMITING
Unlike other limiters, the SPS™ incorporates an exclusive optoisolater limiter
system, which does not add distortion when limiting. Soft limiting starts to
occur when you approach the maximum output of your powered speaker
allowing you to get more usable power out of your system without severe
clipping. However, when you hear distortion, hard clipping or cutting out, reduce
the overall level as you have exceeded the system’s capacity.
POWER/PROTECT
When the system has been activated by the power switch, the LED will
indicate GREEN. If the system should go into protect, the LED will indicate
YELLOW which may occur if; a) one of the internal drivers short or b) if the
power amp should require service.
AC POWER
The 742P is available in either 120V or 240V models. Always use dedicated
circuits for powered speakers. Every Carvin SPS™ powered speaker is
designed to be left on continuously in the case of permanent installations.
SPS™ 742P POWERED AMP SPECS
Frequency Response:
20 Hz to 20 kHz ±1 dB
THD:
less than .1%
Power :
300 watts @ 8
Ω
Duty Cycle :
Continuous without power reduction circuits
Sensitivity:
.5VAC for full output, 12 dB pad
Input/Through:
XLR & 1/4" Balanced
Input Impedance:
10k
Ω
, (for 100 to 600
Ω
inputs)
Input Common Mode Rejection:
72 dB @ 1k Hz
Overload Protection:
Yes
AC Power Muting:
Yes
Power Supply:
Toroid Design
Power Amp Design:
High Slew Rate Digital DDPA™
Power Amp Efficiency :
91%
AC Voltage, VA:
120 or 240 VAC models, 400VA
Idle VA:
15VA
AC Connection:
3 prong connector (grounded)
AC Power Cable:
16 Ga (heavier for long runs)
Wt:
52 lbs.
742P
SPS™ POWERED SPEAKER FEATURES
Carvin’s SPS™ SMART POWERED SPEAKERS™ are more than
just another “power amp in a cabinet”. They offer advanced
electronics to perfectly control every speaker component.
Woofers are power-managed through active filtering, allowing
more low-end punch and preventing over excursion. The mid
range has exceptional detail without harshness and the top-end
remains crystal clear. The exclusive optoisolator limiter helps
keep your peaks under control reducing distortion. Surprising
transparency is delivered by pure, uncolored power from ultra-
fast slew rate power amps.
The heart of every Carvin SPS™ powered speaker is our
exclusive Digital Powered Processing Amplifier (DPPA™), which
is fundamentally, a very sophisticated delta-sigma V/A converter.
The amplifier's THD is less than .1% from 20-20k Hz. The 742P
SPS™ offers 300 watts direct to the drivers with no cable loss.
SPS™ powered speakers have an incredible 91% efficiency
allowing you to run more powered speakers from the same 15 or
20 amp AC circuit. They run cool because power is not wasted
into the heat sink. This also means you can expect full output 24
hours continuously - not reduced as with other systems when
they get hot. Of course, mute and protection circuits are
standard to save your gear from any unfriendly stage conditions.
The biggest advantage of Carvin powered speakers is rock-solid
reliability and convenience while only adding 6 lbs over the
weight of our standard enclosures!
SMART POWERED SPEAKERS™ are easy to connect via a 1/4”
or XLR balanced inputs. Daisy-chain as many powered speakers
as you need for additional coverage. A 12 dB gain switch
matches every audio source. A removable AC cord frees the
enclosure when transporting.
Read general information about the 742 enclosure for specs, warranty and
precautions on the other side.
REAR POWERED CONNECT PLATE
742P
PRO SOUND REINFORCEMENT
MADE IN THE
USA
POWER 300 Watts
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION - TO PREVENT ELECTRICAL SHOCK DO NOT DEFEAT THE SAFETY
GROUND ON THE POWER CORD - DO NOT REMOVE COVER .
WARNING - TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE TO RAIN
OR MOISTURE. REFER SERVICING TO QUALIFED PERSONNEL.
Serial No.
AC power
connector
Power
Switch
Status LED
GREEN-Normal
YELLOW-Protect
Use any of the 3 connectors
from your audio source.
Daisy-chain to other
systems. All connectors are
balanced.
12dB PAD switch to reduce the level
Serial
Number
742P POWERED SPEAKER
INSTRUCTIONS
