SVC on Twitter    SVC on Facebook    SVC on LinkedIn

Related Articles

 

Audio Review: Crown Audio I-Tech I-T12000 HD

Jul 7, 2009 12:00 PM, By John McJunkin

A small amplifier that delivers big power and great signal processing.


   Follow us on Twitter    

Crown Audio I-Tech I-T12000 HD

One DSP operation that’s not facilitated from the front panel is selection of sample rate. That’s because the FIR filter settings need to be recalculated if the sample rate is changed. Luckily, this is easily accomplished by using System Architect software. I would guess that most contractors are familiar with Harman’s application, and in this case, it grants control over pretty much every parameter of the amp—including input level, muting, channel linking, signal routing, sample rate, CobraNet settings, compression, delay, 16-band fully parametric equalization, crossover filtering, and Crown’s proprietary LevelMax suite of limiters that are intended to prevent catastrophes.

The software also remotely displays information about all the aforementioned controls, along with input and output levels, temperature information, limiting, load impedance, ready status, front-panel security information, and error reporting on thermal, clipping, line voltage, fan status, and continuous load monitoring. The fan monitoring features true tachometer information. The software also allows the user to copy and paste one amp’s parameters to another, and all the amp’s presets and its handy signal generator are managed by the software, as well. Frankly, I can’t think of many good reasons not to take the necessary steps to put your amp(s) under computer control. The System Architect software was developed with customer feedback in mind, and I appreciate this attention to the requirements of users.

  Related Links

Technology Showcase: Remote-controlled and Networked Power Amplifiers
With the coming of digital audio networks and new protocols augmenting existing serial control technologies, the world of power amplifier control and monitoring has become an increasingly exciting and innovative realm...

The Buzz: Installation Spotlight: Flipping the Switch
Exhibiting bravado in the face of an economic downturn as only casino mogul Steve Wynn can, the new Encore Las Vegas hotel and casino opened its doors in December 2008 next to the famed Wynn Las Vegas Resort and Country Club...

Audio in the Citi
This April, as a unique event in baseball history, a city's two franchises both took up residence in new stadiums in the same season...

The I-Tech series amplifiers feature a global power supply with Crown’s proprietary Power Factor Correction (PFC). Adapters enable the amps to be powered virtually anywhere in the world, with AC ranging from 100V to 240V and at both 50Hz and 60Hz. The amps feature a high degree of common-mode rejection and nicely minimize hum and other RF issues. The interface is friendly and easily navigated, particularly if a computer is used to control these amplifiers with System Architect software. These amps sound great—with minimal harmonic and intermodulation distortion—due to the high-quality, high-resolution DSP—in particular, the FIR filtering, which virtually eliminates the phase distortion of IIR filtering. The front-panel USB slot nicely facilitates transferring presets with a jump drive. This is also the only amplifier with analog, AES/EBU, CobraNet, HiQnet, and Ethernet connectivity, and this makes it versatile when integrating it into existing infrastructure.

Amplifier technology continues to advance, and these amps represent the fifth generation of Class I design. This topology facilitates a lot of power from a small box. Crown has married this amplifier technology with some powerful DSP and control infrastructure and arrived at a truly excellent product.


John McJunkin is principal of Avalon Podcasting in Chandler, Ariz. He has consulted in the development of studios and installations, and he provides high-quality podcast-production services.


PRODUCT SUMMARY

  • Company: Crown Audio
    www.crownaudio.com
  • Product: I-T12000 HD
  • Pros: Powerful amp coupled with excellent DSP and control.
  • Cons: None to speak of.
  • Applications: Any application that requires a networkable power amp.
  • Price: $8,510

SPECIFICATIONS

  • Input sensitivity: 1.28V-8V (in 0.1Vincrements)
  • Frequency response: 20Hz-20kHz ±0.25dB
  • Signal-to-noise ratio: >108dB
  • THD: <0.1%
  • IMD: <0.35%
  • Latency: 1.16ms @ 48kHz, 529µs @ 96kHz
  • Damping factor: >5000
  • Crosstalk: >80dB
  • CMR: >55dB, typically >70dB
  • DC output offset: <±3mV
  • Input impedance: 20kΩ balanced, 10kΩ balanced
  • Load Impedance (dual): 1-2-4-8-16Ω
  • Load impedance (bridged mono): 2-4-8Ω
  • Dimensions: 19”x3.5”x16.2”
  • Weight: 28lbs.



Acceptable Use Policy
blog comments powered by Disqus

Browse Back Issues
BROWSE ISSUES
  June 2014 Sound & Video Contractor Cover May 2014 Sound & Video Contractor Cover April 2014 Sound & Video Contractor Cover March 2014 Sound & Video Contractor Cover February 2014 Sound & Video Contractor Cover January 2014 Sound & Video Contractor Cover  
June 2014 May 2014 April 2014 March 2014 February 2014 January 2014