CARVIN 1283 User manual

SPEAKER CABLES
Use either 1/4” 16 gauge copper wire speaker cable or high-current Twist- Lok™
cables with heavy 4 conductor 12 gauge copper wire. The Carvin PH50 is
adequate for lengths up to 50’ under normal use. You can DAISY-CHAIN up to one
additional speaker per cable by using the OUTPUT connector. Be sure to note the
total impedance to the amp so it is not lower than it’s recommended impedance.
See Typical Loudspeaker Impedance Configurations.
SUGGESTIONS FOR OPTIMAL PERFORMANCE
Raise the enclosure to the ear level of your audience for greater coverage. To
help control feedback, keep the speakers in front of the microphone. Never direct
the microphone towards the speaker. Use a graphic EQ for further feedback
control. For greater coverage, add a second speaker system 20° to 30° off axis.
REAR CONNECT PLATE
Two standard 1/4” phone jacks and two Twist Lok™ connectors are featured.
See hookup diagrams for full range and biamp options.
1283
FULL RANGE
BIAMP
Serial No.
MADE
AUS
IN THE
xxxxxx
POWER RATING: 300Watts
PRO SOUND REINFORCEMENT
IMPEDANCE: 8 Ohms
BIAMP—LOW FREQ.BIAMP—HI FREQ.
TWIST-LOK
FULL RANGE MODE:
JACKSWIRED
IN PARALLEL
1+
1– SIGNAL GROUND
2+
2– NOT USED NOT USED
MIXER
POWER AMP
OUT
MODE SWITCH: FULL RANGE
ADDITIONAL
SYSTEM
1283
FULL RANGE
BIAMP
Serial No.
MADE
AUS
IN THE
xxxxxx
POWER RATING: 300Watts
PRO SOUND REINFORCEMENT
IMPEDANCE: 8 Ohms
BIAMP—LOW FREQ.BIAMP—HI FREQ.
TWIST-LOK
FULL RANGE MODE:
JACKSWIRED
IN PARALLEL
1+
1– SIGNAL GROUND
2+
2– NOT USED NOT USED
MODE SWITCH: BIAMP
ELECTRONIC CROSSOVER
MIXER
OUT
IN (Set FREQ 600Hz) HILOSUB
MIXER
NORMAL FULL RANGE HOOKUP
BI-AMP HOOKUP
MODEL 1283 SPEAKER SYSTEM SPECS:
Frequency Response: 60 Hz to 19 kHz ±3 dB
Useable Low Frequency Bandwidth: 50 Hz (-10 dB)
Power Handling: 300 watts Continuous Program Power
Recommended Amp: 75 to 500 watts
Sensitivity: 100 dB SPL, 1 Watt @ 1 meter
Coverage Angles: 90° Horizontal, 45° Vertical
Nominal Impedance: 8Ω
Crossover Type: C1283 Constant Voltage
Input & Output Connectors: Two 1/4", two Twist-Lok™
BIAMP Support: Yes—Panel Switch
Horn Driver Protection: Yes
Woofer Enclosure Type: Vented Box
Enclosure Covering: Black Duratuff™
Dim/Wt: 20"W x 14"D x 26"H, 68 lbs.
Warranty: One Year, Extended Warranty available
Optional Cables: PH50, SPK25, SPK50, SPK100
Optional Vinyl Cover: CVS832
20 Frequency 100 500 1k Hz 5k 10k 20k
dB spl
100
95
90
85
80
1283 FREQUENCY RESPONSE
CARVIN ENGINEERING DATA 1283 SPEAKER SYSTEM INSTRUCTIONS
1283
Congratulations on your selection of the 1283
loudspeaker. The 1283
vented, 300 watt 3-way speaker enclosure will exceed the power and
output of the competition and it will sound better because of its superior
design featuring a computer optimized cabinet, crossover and the Pro
Series speaker components. We realize that for a loudspeaker to sound
its finest, it must be a system of precisely aligned components. With our
matched 12“ woofer, 8“ midrange and titanium horn, the 1283 is an
outstanding system for a vast array of applications ranging from clubs to
outdoor use.
RECEIVING INSPECTION
INSPECT YOUR SPEAKER FOR ANY DAMAGE which may have occurred during
shipping. If any damage is found, please notify the shipping company & CARVIN.
SAVE THE CARTON & ALL PACKING MATERIALS. In the event you have to re-ship
your unit, always use the original carton and packing material. This will provide the best
possible protection during shipment. CARVIN and the shipping company are not liable
for any damage caused by improper packing.
SAVE YOUR INVOICE. It will be required for warranty service if needed in the future.
SHIPMENT SHORTAGE. If you find items missing, they may have been shipped
separately. Please allow several days for the rest of your order to arrive before inquiring.
RECORD THE SERIAL NUMBER on the enclosed warranty card or below on this
manual for your records. Keep your portion of the card and return the portion with your
name and comments to us.
WARRANTY
Parts and labor are covered for 1 year on manufacturer’s defects. Warranty does not
cover burned out drivers caused by excessive power or distortion, or physical damage
caused by general use, moisture or dust. CAUTION: Distortion from power amps can
destroy drivers much faster than clean power. Contact Carvin’s Customer Service at
800-854-2235 or [email protected]. Customer is responsible for shipping
charges.
TYPICAL LOUDSPEAKER IMPEDANCE CONFIGURATIONS
Individual speaker or speaker cabinet wiring examples for total impedance.
For your records, you may wish to record the following information.
Serial No._____________________ Invoice Date_______________
SERIES CONNECTION
16ΩTOTAL IMPEDANCE
+
+
+
PARALLEL CONNECTION
4ΩTOTAL IMPEDANCE
+
++
8ΩTOTAL
IMPEDANCE SERIES/PARALLEL
CONNECTION
8ΩTOTAL IMPEDANCE
+
+ +
+
+
+
+
8Ω8Ω
8Ω
8Ω
8Ω
8Ω
8Ω
4Ω8Ω
8Ω
16Ω8Ω8Ω
76-01283A 0902
12340 World Trade Drive, San Diego, CA 92128
800-854-2235
www.carvin.com
See other side for SPS™ Powered Speaker operation

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 1283P 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™ 1283P POWERED AMP SPECS
Frequency Response: 20Hzto20kHz±1dB
THD: lessthan.1%
Power : 300watts@8Ω
Duty Cycle : Continuouswithoutpowerreductioncircuits
Sensitivity: .5VACforfulloutput,12dBpad
Input/Through: XLR&1/4"Balanced
Input Impedance: 10kΩ,(for100to 600 Ωinputs)
Input Common Mode Rejection: 72dB @ 1k Hz
Overload Protection: Yes
AC Power Muting: Yes
Power Supply: Toroid Design
Power Amp Design: HighSlewRateDigital DDPA™
Power Amp Efficiency : 91%
AC Voltage, VA: 120 or 240 VACmodels,400VA
Idle VA: 15VA
AC Connection: 3prong connector (grounded)
AC Power Cable: 16Ga (heavier for long runs)
Wt: 74lbs.
1283P
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. Midrange drivers reproduce exceptional
detail without harshness and the top-end is 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 1283P 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 1283 enclosure for specs, warranty and
precautions on the other side.
REAR POWERED CONNECT PLATE
1283P
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
1283P POWERED SPEAKER INSTRUCTIONS