Crown DSi-8M Manual de usuario descargar pdf (Pagina 2)

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58 •

CINEMA

• 59

SPECIFICATIONS

Performance

Frequency Response: +0/–1 dB from 20 Hz to 20

kHz at 1 watt into 4 ohms.

Load Impedance: Safe with all types of loads.

Rated for 2 to 8 ohms in Stereo mode, 4 to 16

ohms in Bridge-Mono mode.

Sensitivity:

At 8 ohm rated output:

DSi 1000: 2.35V.

DSi 2000: 3.09V.

DSi 4000: 3.61V.

At 4 ohm rated output:

DSi 1000: 2.24V.

DSi 2000: 2.84V.

DSi 4000: 3.47V.

At 2 ohm rated output:

DSi 1000: 1.88V.

DSi 2000: 2.24V.

DSi 4000: 2.84V.

Signal to Noise Ratio (below rated 8-ohm power

at 1 kHz): 100 dB (A weighted).

Damping Factor: Better than 500 from 20 Hz to

400 Hz.

Crosstalk: > 70 dB below rated power, 20 Hz to

1 kHz.

Voltage Gain at 1kHz, 8 ohm rated output:

DSi 1000: 26 dB.

DSi 2000: 26 dB.

DSi 4000: 26 dB.

Input Stage: Input is electronically balanced and

employs precision 1% resistors.

Input Impedance (nominal): 20 k ohms, balanced;

10 k ohms, unbalanced.

Maximum Input Signal: +22 dBu typical.

AC Line Voltage and Frequency Configurations

Available: 100V, 120V-240V, 50/60 Hz.

AC Line Current:

DSi 1000: 6.5A.

DSi 2000: 6.9A.

DSi 4000: 8.0A.

At Idle: Draws no more than 90 watts.

Operating Temperature: 0° C to 40° C at 95%

relative humidity (non-condensing).



DSP Section

Input EQ: 6 parametric ﬁ lters per channel with

adjustable Q, ±15 dB boost/cut. Also adjustable

high and low shelving ﬁ lters. This 8-ﬁ lter EQ

section can be bypassed.

Crossover Filters: Highpass and lowpass

per channel. Butterworth 6/12/18/24 dB per

octave, Linkwitz-Riley 24/48 dB per octave. Also

includes ±15 dB bandpass gain and polarity

control.

Output EQ: 8 parametric ﬁ lters per channel with

adjustable Q, ±15 dB boost/cut. This 8-ﬁ lter

EQ section can NOT be bypassed. Filters are

enabled individually.

Output Limiter: Prevents clipping and protects

loudspeakers. Choice of –3, –6, or –12 dB

threshold per channel.

Delay: Up to 50 msec total delay per channel.

Presets: 20 presets. One is “DSP OFF.” Fifteen

are factory-set for JBL Cinema systems. Four

are user-deﬁ nable.

Front Panel Indicators

Level: Detented rotary level control, one per chan-

nel.

Power Switch: On/off switch applies AC power to

the amplifier.

Sel/Prev/Next Buttons: Three buttons near the

LCD screen are used to access menu items and

front panel lockout.

LCD Screen: Backlit liquid crystal display shows

speaker presets and signal processing.

Signal Indicator: Green LED, one per channel,

illuminates when a very low-level signal is present

at input.

–10 Indicator: Green LED flashes when output

signal exceeds –10 dB below clip.

–20 Indicator: Green LED flashes when output

signal level exceeds –20 dB below clip.

Ready Indicator: Green LED, one per channel,

illuminates when the amplifier is ready to produce

audio.

Clip Indicator: Red LED, one per channel, turns on

at the threshold of audible distortion.

Temp Indicator: Red LED, one per channel, illumi-

nates under excessive temperature conditions.

Power Indicator: Blue LED illuminates when the

amplifier has been turned on and has power.

Back Panel Controls and Connectors

AC Line Connector: NEMA 5-15P (15A).

Input Connector: Two 3-pin removable Phoenix-

type connectors each accept a balanced line-level

input signal.

Output Connectors: 4-position barrier strip with

connectors for dual loudspeakers or bridge-mono

loudspeaker.

HiQnet USB Connector: Type B, connects to a

USB port in a PC.

HD-15 Connector: For cinema I/O compatibility

with DSi-8M System Monitor.

Protection

DSi-Series amplifiers are protected against shorted,

open or mismatched loads; overloaded power

supplies; excessive temperature; chain destruction

phenomena; excessive output current, and input

overload damage. They also protect loudspeakers

from input/output DC, large or dangerous DC off-

sets and turn-on/turn-off transients.

Construction

Chassis: Steel.

Cooling

Proportional speed fan with front-to-rear airflow.

Dimensions

EIA Standard 19-in. (48.3-cm) rack mount width

(EIA RS-310-B), 3.5 in. (8.9 cm) high and 12.25 in.

(31.11 cm) deep behind mounting surface.

Weight

Net Weight:

19 lb (8.6 kg).

Shipping Weight:

22 lb (10.0 kg).

Regulatory Certifications

Note: All measurements apply to all models of CDi

series amplifiers in stereo mode with 8-ohm loads and

an input sensitivity of 26-dB gain, 1-kHz at rated power

unless other otherwise specified. Specifications for

units supplied outside the U.S.A. may vary slightly at

different AC voltages and frequencies.

he Crown

DSi Series of power amplifiers provides onboard digital signal processing

including crossovers, EQ filters, delay and output limiting. A rear panel HD-15 connec-

tor provides easy input/output connectivity between DSi amplifiers and the new DSi-8M

System Monitor. The intuitive front panel LCD screen guides installers through a setup pro-

cess—featuring presets for the industry-standard JBL cinema loudspeaker systems—to make

conﬁ guration quick and easy. At the touch of a button, Crown’s DSi cinema ampliﬁ ers deliver

perfectly matched performance with each award-winning JBL ScreenArray

system, making

this the ultimate cinema solution.

AMPLIFIERS  CINEMA

DSi Series: 2/4/8 Ohm

DSi 1000, DSi 2000, DSi 4000

One-Touch

Performance

FEATURES

Intuitive front-panel LCD screen, automatic presets for popular JBL cinema

speaker systems for quick, easy conﬁ guration.

Onboard digital signal processing includes crossovers, EQ ﬁ lters, delay, and

output limiting.

Computer connectivity via USB allows fast setup and conﬁ guration with

HiQnet™ System Architect™ software.

Rear-panel HD-15 connector provides easy input/output connectivity

between DSi ampliﬁ ers and new DSi-8M System Monitor.

Barrier strip outputs, removable Phoenix-style input.



•

POWER OUTPUT

2-ohm Dual 4-ohm Dual 8-ohm Dual 4-ohm 8-ohm

Models (per channel) (per channel) (per channel) Bridge Bridge

DSi 1000 700W** 500W* 275W* 1,400W** 1,000W*

DSi 2000 1,000W** 800W* 475W* 2,000W** 1,600W*

DSi 4000 1,600W** 1,200W* 650W* 3,200W** 2,400W*

*1 kHz power with 0.5% THD. **With 1% THD.

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