Усилвател CROWN XS1200CE AMPLIFIER

​X s S E R I E S
Xs1200 (120 V, 60 Hz model)
The Crown® Xs1200 power amplifi er shall be a solid-state two-channel
model employing Class H output circuitry.
The amplifi er shall include protection from shorted, open and mismatched
loads, general overheating, DC, high-frequency overloads, under/over voltage,
and internal faults.
The front-panel controls shall be a power switch and a gray rotary level
control (one per channel).
The recommended load impedance shall be 2 to 8 ohms.
Rear-mounted input connectors shall be a 3-pin Phoenix-style connector
(one per channel) and an XLR-1/4"combo connector (one per channel)
including a 3-pin female XLR connector and TRS 1/4" phone jack. Rearmounted
output connectors shall be binding posts (one pair per channel),
a 4-pole Speakon connector (one per channel), and a 3-pin male
XLR connector (one per channel) in parallel with the XLR-1/4" combo and
Phoenix-style connectors for daisy-chain connections.
Front panel indicators shall include a yellow Bridge-Mode Indicator that
illuminates when the Mode Switch is set to the “Bridge” position, a green
Signal Indicator (one per channel) that illuminates when the channel’s input
signal level is above –40 dBu, a red Clip Indicator (one per channel) that
illuminates when the channel’s output signal is being overdriven, a red
Temp Indicator (one per channel) that illuminates when channel(s) are
in thermal protect mode, a red Fault Indicator that illuminates when the
amplifi er is in protect mode and also briefl y during normal power-up when
amplifi er is fi rst switched on, a yellow Power Indicator that indicates amplifi
er has been turned on, and a red AC Mains Indicator that illuminates when
AC power is present at the power cord.
The power amplifi er shall meet or exceed the following performance criteria.
Input sensitivity for rated output: 1.4V (except for rated output at 0.5%
THD with one channel driven in Dual mode into 4 ohms). Rated output
with both channels driven in Dual mode into 8 ohms (1 kHz): 650 watts
per channel at 0.15% THD. Rated output with both channels driven in Dual
mode into 4 ohms (1 kHz): 1,100 watts per channel at 0.15% THD. Rated
output with both channels driven in Dual mode into 2 ohms (1 kHz): 1,600
watts per channel at 0.5% THD. Bridge-mono output power into 8 ohms (1
kHz): 2,300 watts at 0.15% THD. Bridge-mono output power into 4 ohms
(1 kHz): 3,000 watts at 0.5% THD. Frequency Response at 1 watt, 22 Hz
to 22 kHz: ± 1 dB. Signal to Noise Ratio below rated power: > 109 dB
A-weighted, > 107 dB (22Hz to 22 kHz fi lter). Total Harmonic Distortion at
full rated power from 20 Hz to 20 kHz: < 0.5%. Intermodulation Distortion
(IMD) 60 Hz and 7 kHz at 4:1: < 0.5% from full rated output to –30
dB and < 1.0% from full rated output to –40 dB. Load impedance: 2-8
ohms stereo and 4-8 ohms bridge mono. Voltage gain (at maximum level
setting): 47.4:1 (33.5 dB). AC Line Voltage and Frequency Confi gurations
Available (± 10%): 120 VAC/60 Hz and 240 VAC/50 Hz. Damping Factor: >
200 from 10 to 100 Hz. Crosstalk (below rated power): > 65 dB at 1 kHz
and > 45 dB at 20 kHz. DC Output Offset (shorted input): < ± 75 mV. Input
Impedance (nominal): 20 kilohms balanced, 10 kilohms unbalanced.
The amplifi er chassis shall be constructed of steel with a durable black
fi nish and shall be designed for forced-air ventilation from the front panel
to the back panel.
The dimensions of the amplifi er shall allow for 19 inch (48.3 cm) EIA
standard (RS-310-B) rack mounting. The amplifi er shall be 3.5 inches
(8.9 cm) tall, and 17.14 inches (43.5 cm) deep behind the rack-mounting
surface.
The amplifi er shall weigh 28 lb 14 oz (13.1 kg).
The amplifi er shall be designated the Crown Xs1200.