The I-Tech 4x3500HD amplifier is the industry’s first high-powered tour sound amplifier featuring four inputs, Analog, AES3, and CobraNetTM, fully routable to any one of 4 outputs. Each channel features a complete compliment of OmniDriveHDTM Processing, including the acclaimed LevelMAXTM Limiter Suite, and support for linear phase FIR filters as used in the latest JBL […]
The I-Tech 4x3500HD amplifier is the industry’s first high-powered tour sound amplifier featuring four inputs, Analog, AES3, and CobraNetTM, fully routable to any one of 4 outputs. Each channel features a complete compliment of OmniDriveHDTM Processing, including the acclaimed LevelMAXTM Limiter Suite, and support for linear phase FIR filters as used in the latest JBL V5 loudspeaker tunings. Combine that with Crown’s patented Class-I technology delivering uncompromising power output across all four channels, and it’s easy to see why the I-Tech 4x3500HD is the new flagship tour sound amplifier from Crown.
| True Power Density |
| Crown amplifiers run louder, longer, and with higher fidelity than competing amplifier designs. The I-Tech 4x3500HD is no exception, with four channels of patented Class-I technology packed into a compact 2U design. |
| DriveCoreTM |
| A culmination of nearly two decades of R&D in PWM and switch-mode amplification, DriveCoreTM is a Crown exclusive that combines hundreds of parts into one chip the size of a your fingertip, resulting in more efficiencies and unsurpassed reliability. |
| 4 In/4 Out |
| True flexibility, each amplifier is capable of independently driving up to four separate zones with a full suite of processing options on each channel. |
| Omnidrive HD |
| With the latest programmable studio-grade 32-bit Sharc® processors with enhanced SIMD architecture and a proprietary D/A output filter for improved signal-to-noise at least 6 dB quieter than outboard DSP, it’s easy to see how the decade-long partnership between Crown and BSS continues to go beyond “what’s possible” and into “what’s next.“ |
| Global PSU |
| Universal power supply with Power Factor Correction technology adjusts to any frequency or mains voltage between 100-240VAC in a controlled manner – and in real time – so you can use it anywhere in the world and it will always deliver full power. |
| Efficiency/Power/Weight |
| When compared to traditional, non-switching amplifiers, the I-Tech HD series weighs an average of 50 lbs. (22.68 kg) less. Additionally, the patented Universal Power Supply with Power Factor Correction combined with the patented Class-I PWM output stage of the I-Tech 4x3500HD provides greater than 90% efficiency at full power from 100-240VAC. |
| Warranty |
| Crown offers a five-year, no-fault, fully transferable warranty on every new I-Tech HD series amplifier we make – an unsurpassed industry standard. |
| I-Tech 4x3500HD | DUAL | BRIDGED | ||||||
| 2-ohm | 2.7-ohm | 4-ohm | 8-ohm | 4-ohm | 8-ohm | 70VRMS | 100VRMS | |
|
20 Hz – 20 kHz |
2100 | 2200 | 2400 | 1900 | 4200 | 4800 | 2100 | 2300 |
|
20ms Burst |
3500 | 3800 | 4000 | 2100 | 7000 | 6000 |
. It also features Lab.gruppen?s unique <br>power matching solution, the MLS switch, which offers endless combinations for solving <br>most of the problems related to varying impedances and maximum power capacities of <br>loudspeakers. The latest semiconductor technology is utilized in the new ferrite Power (fP) <br>amplifiers. <br>This, together with Lab.gruppen?s proprietary copper cooling system, Intercooler?, enhances <br>the 2 ohms capacity. Two easily accessible dust filters on the front ensure a clean front-to-rear <br>airflow. Additionally, a new Bi-phase wiring scheme also increases the capacity of the switch <br>mode power supply. This extends the power bandwidth in the low end.</p>
<p>Key Features:<br>4 x 370 watts @ 8 ?<br>4 x 380 watts @ 4 ?<br>4 x 500 watts @ 2 ?<br>(Measured just below clip level, with all 4 channels driven)<br>Light weight and compact: only 8.6 kg (19lbs), 2U high<br>MLS? Switch: Lab.gruppen?s unique power matching for different loads</p>
<p>New Features:<br>Replaces the LAB 1200C<br>Easily accessible dust filters<br>Improved low-end power bandwidth<br>Extruded front panel for increased stability</p>
<p>Besides the traditionally superb Lab.gruppen sonic performance, there is a full line of features <br>to make the fP family functional in all situations from installation to high performance live <br>sound systems:</p>
<p>Regulated switch mode power supply<br>Today there are many lightweight, switch-mode amplifiers in the market. However, the unique <br>Lab.gruppen switch-mode power supply technology offers a number of essential advantages <br>that make it superior to other and seemingly similar power supply designs. The most important <br>features are the regulated power supply and the extreme power efficiency. The regulated power <br>supply easily deals with a very high variation in the AC mains voltage: it can drop by up to 20% <br>below its nominal level - e.g. to 180 V instead of 230 V ? without any problem. Perhaps even <br>greater benefits result from the extreme efficiency of Lab.gruppen amplifiers: only a fraction of the <br>energy from the AC mains is turned into heat.<br>A regulated power supply also presents some other sonic advantages, such as better cone control <br>and the same fast response as a conventional power supply.</p>
<p>Sophisticated protection circuitry, combining:<br>ALS? short circuit protection; the Adaptive Limiting System permits very high peak currents, but <br>keeps the amplifier within the Safe Operation Area<br>DC protection; protects against infrasonic signals<br>VHF protection; protects the loudspeakers against strong very high frequency non-musical signals <br>above the audible range<br>Thermal protection; prevents the amplifier from being overheated. The protection indicators on the front <br>panel are switched on, as a warning, before the protection process is initiated<br>AC protection; shuts down the power supply if the line voltage is outside the operating voltage<br>Clip limiter; prevents severely clipped waveforms from reaching the loudspeakers, whilst maintaining <br>full peak power.</p></td><td>
<p>Model CT475<br>
Product Type Amplifier<br>
Channels 4<br>
Sensitivity 1.4V<br>
Rated Power Output 75W per Channel into 8 ohms<br>
Signal to Noise Ratio (below rated power 20Hz to 20kHz, A-Weighted 110dB<br>
Total Harmonic Distortion (THD) (full rated power, 20Hz - 20kHz)
Intermodular Distortion (from 0dB down to -40dB)
Frequency Response (at 1W into 4/8 ohms) ± 0.5dB<br>
Crosstalk (below rated power 20Hz to 1kHz) > 70dB<br>
Common Mode Rejection (20Hz to 1kHz) > 55dB, typically > 70dB<br>
Dimension (H x W x D) 1.75 "aposirsi_electrovoice")
Weight 10 lbs (4.5 kg)
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