Advertisement
Specifications
bridged mono power 8Ω
maximum output voltage
frequency response 1W @ 8Ω
power bw rated power @ 4Ω, 1% THD+N
circuit breaker rating (120V/230V)
current draw (120VAC) 1/8 power4Ω
thermal emissions 1/3 Power, 4Ωbtu / hr
Architects' & Engineers' Specifications:
The power amplifier shall consist of 2 chan-
nels. Each channel will deliver a minimum of
(280 / 400 / 560) watts at 8 ohms, (500 / 750 /
1000) watts at 4 ohms (650 / 900 / 1200) watts
at 2 ohms, 20Hz - 20kHz. In Bridged mono
mode, it will deliver a minimum of (1000 / 1500
/ 2000) watts at 8 ohms and (1300 / 1800 /
2400) watts at 4 ohms, 20 HZ - 20 kHz. It shall
weigh (30 / 32.5 / 35) lbs. The amplifier shall
incorporate protection circuitry against output
short circuits, DC voltage on outputs, thermal
overload and load protection due to any form
of amp failure. It will include impedance sens-
ing circuitry, and RMS clip limiter and Auto-
Ramp signal control. The amplifier shall have
LT1000
stereo power 8Ω
280W
4Ω
500W
2Ω
650W
1000W
4Ω
1300W
53V rms
1kHz, 0.1% THD+N Power figures are watts per channel, both channels driven.
20Hz–20kHz, +0 / -1dB
20Hz–20kHz, +0 / -1dB
THD + N
<0.1% rated power @ 4Ω, 1kHz
smpte imd
<0.03% rated power @ 8Ω
damping factor
400:1 @ 8Ω
input CMRR
>60dB @ 1kHz
input sensitivity @ 8Ω
.775 V for full rated output power
input impedance
>20kΩ balanced, >10kΩ unbalanced
hum and noise
-100dB, A-weighted
crosstalk
> -60dB below max rated power (1kHz)
class
D
power supply
Linear with toroid transformer
10A / 6A
1.8A
1/3 power, 4Ω
4.0A
at idle
0.6A
1220
cooling
Back to front via variable speed DC fan
input connectors
balanced female XLR, 1/4"TRS, and three pin Phoenix™
output connectors
Speakon™ connectors and five-way binding posts
controls
front panel: twin recessed stepped attenuators, power switch
rear panel: signal ground-lift, mode select, circuit breaker
LED indicators
signal level, protect, active, ACL / IGM
construction
16-gauge steel chassis, 14-gauge steel front-panel (double thickness in rack ear areas)
dimensions
3.5" x 19" (front panel) 17" (chassis) x 14" (15.25" to rack ears) h x w x d
weight
30 lbs
a sensitivity of .775V at the input, which will
deliver full rated output power in any output
configuration.
internally to 1.2V for full rated output power.
The hum and noise level shall be greater then
100dB below rated output, "A" weighted. The
amplifier shall have a class D output stage with
a modulated power supply.
response shall be greater than 20 Hz - 20 kHz,
0 / -1 dB, at full rated output power @ 4 ohms,
.5%THD. The amplifier will operate at either
120 VAC, 60hz (safe operating range 100-
132VAC) or at 230 VAC, 50Hz (safe operating
range 200-264), voltage selection determined
at factory. Maximum current draw at 120V
shall be no greater then 15 A, both channels
driver continuously into 4 ohm load.
Crest Audio reserves the right to make improvements in manufacturing or design which may affect specifications.
3.21.02
v.1.6
LT Series Power Amplifiers
LT1500
LT2000
400W
560W
750W
1000W
900W
1200W
1500W
2000W
1800W
2400W
64V rms
72V rms
15A / 10A
20A / 12A
2.4A
3.0A
5.5A
7.0A
0.6A
0.6A
1430
2100
32.5 lbs
35 lbs
Sensitivity can be changed
The frequency
Front
*A4400078*
panel indicators shall include LED indicators
for Protect, ACL (automatic clip limit), Signal
level, and Active status. Front panel attenua-
tors will be recessed and detented. Input con-
nectors shall be XLR, 1/4" TRS and 3-pin
Phoenix, per channel. Output connectors shall
be 5-way binding posts and Speakon, per
channel.
A switch shall enable the signal
ground to be lifted from the chassis. The pack-
aging of the amplifier shall allow for standard
rack mounting without requiring space
between similar units as long as rack is prop-
erly ventilated. Dimensions main chassis shall
be 17" wide (front panel is 19" wide), 14" deep
(15.25" including rear rack ears), 3.5" high.
The amplifier shall be designated the Crest
Audio Model (LT1000 / LT1500 / LT 2000).
16-00 Pollitt Dr. Fair Lawn NJ 07410 USA
TEL: 201.909.8700 FAX: 201.909.8744
www.crestaudio.com
Crest Audio Inc.
Advertisement
