Crown Audio DSI4000

A Series Designed for Cinema, in the Spirit of the XTI Platform

The DSI series is specially adapted for cinema environments, where reliability, repeatability of settings, and consistent reproduction are essential. Built on the XTI platform, these amplifiers adopt an installation-oriented approach: standardized format, clear interfaces, embedded DSP, and supervision/configuration capabilities.

All models in the series share a 2U chassis and a stated weight of 8.6 kg (except the DSI6000). This uniformity facilitates rack integration, especially in technical bays and projection booths, where space and thermal management are recurring constraints.

Who Is This DSI Amplifier For and In Which Applications Does It Excel?

This amplifier is aimed at integrators, venue operators, and technicians seeking amplification dedicated to cinema systems: LCR channels, surround, or reinforcement requiring precise control and reproducible settings. It is also suitable for demanding fixed installations (auditoriums, multipurpose rooms, museums) whenever centralized processing (EQ, filtering, delay, limiting) close to the amplification stage is desired.

Thanks to its extended load compatibility (down to 2 ohms in stereo) and bridge mode, the DSI series offers true flexibility to adapt to speaker architecture, installation wiring, and power needs, while maintaining user-friendly operation focused on practical use.

Internal DSP, Installation Connectivity, and Safety: An "All-in-One" Approach

Amplification and Audio Behavior in Installation

The DSI series uses class AB+B amplification, with a fixed gain of 26 dB and a damping factor greater than 500, characteristics relevant for preserving good transducer control and clean response in a cinema playback context. The device is designed to operate between 2 to 8 ohms in stereo and 4 to 16 ohms in bridge mode, adapting to wiring configurations encountered in venues.

Front Panel Control: Simple, Clear, Usable

The front panel includes a power switch, two volume potentiometers, and three buttons dedicated to configuring the internal DSP via a backlit display. LED indicators allow visualization of output levels, clip status, and thermal protection for quick diagnostics during operation.

Configuration and Presets: 15 Factory Programs + 5 User Memories

The internal DSP, common to all three models in the range, allows comprehensive amplifier configuration. It offers 15 factory presets programmed for JBL Cinema speakers and 5 user programs, convenient for standardizing multiple rooms while maintaining specific adjustments according to acoustics or setup.

Available processing includes 6 parametric filters (+/-15 dB), Butterworth high-pass and low-pass filters at 6/12 dB, delays up to 50 ms, and an output limiter. The whole system aims to secure playback, optimize temporal alignment, and control tonal balance without adding external processors in configurations that do not require them.

Installation Connectivity and Booth Integration

The rear panel is oriented toward integration: a USB connector enables PC configuration with HiQnet software, inputs are balanced on Euroblock connectors, and amplified outputs are provided on screw terminals, common choices in installations for reliability and mechanical robustness. A SubD15 connector is also present for connection with the DSI8M monitoring system for cinema projection booths.

Protections, Ventilation, and Long-Term Reliability

The DSI series includes protections against short circuits, load issues, excessive input and output levels, as well as DC currents toward the speakers. Forced ventilation relies on a large-diameter fan, with airflow from front to back, and speed proportional to component temperature rise.

As with all CROWN products, DSI series amplifiers benefit from a 3-year warranty, an important factor for intensive use and installed fleets.

Technical specifications

2 ohm modulation	2 x 1600 W*	Equalization	6 parametric filters (+/-15 dB)
4 ohm modulation	2 x 1200 W	Filters	Butterworth high-pass and low-pass 6/12 dB
8 ohm modulation	2 x 650 W	Delay	up to 50 ms
4 ohm bridged modulation	3200 W*	Limiter	output limiter
8 ohm bridged modulation	2400 W	USB	PC configuration (HiQnet)
Maximum power in Watts at indicated total harmonic distortion rate	1 kHz, 0.5% THD. * 1 kHz, 1% THD.	Inputs	2 balanced inputs on Euroblock connector
Signal-to-noise ratio	greater than 105 dBA at 1 kHz	Outputs	2 amplified outputs on screw terminal
Gain	26 dB	Monitoring	SubD15 connector (DSI8M link)
Damping factor	greater than 500	Rack units	2U
Amplification type	class AB+B	Dimensions	48.3 x 8.9 x 31.1 cm
DSP programs	15 factory presets (JBL Cinema speakers) + 5 user presets	Weight	8.6 kg