TROISI DESIGN, LTD.
OCTAL DC8-224ADC 8-C
HANNEL A/D CONVERTER
DC8-224DAC 8-CHANNEL D/A CONVERTER


Troisi Multi-Channel converters are designed for multi-track recording and playback and surround sound production for mastering and digital cinema appications. Eight channel analog to digital conversion provides 16, 20 and 24 bit quantization at sample rates from 24KHz to 96Khz. Digital to analog conversion provides eight and twelve channel conversion for 5.1, 7.1 and multi-lingual surround sound.


Octal DC8-224ADC 8-Channel A/D Converter

DC8-224DAC D/A Converter
 
 

Octal DC8-224ADC 8-Channel A/D Converter

The TROISI Octal A/D will take you into the 21st century with the purest specs around. Eight channels in a 1U package with features that will vastly improve the sound of your digital multitrack projects:

  • Highest Quality Analog Circuitry
    Very low offset analog circuitry eliminates blocking capacitors from the signal path with THD below .0005% (the limit of our test instruments) and an analog dynamic range well beyond 130dB. Each channel provide a gain setting trim pot for 14dB of gain range to support a wide variety of input levels with no sonic degradation, even in unbalanced input modes.

  • Pure Digital Clocking and Sampling
    Because the four stereo A/D converters are driven from one extremely low jitter internal clock (44.1kHz, 48.0kHz, 88.2kHz or 96kHz), the highest quality sampling is ensured. A unique low jitter phase locked loop ensures easy synchronization to external word clocks from 28kHz to 100kHz. Each channel includes a mid level LED indicator (-30dBFS to 0dBFS) and a peak L.E.D indicator to let you know if you have any overs.

  • Digital Features
    Four standard AES/EBU stereo digital outputs are provided for easy interface. Each digital output pair can be adjusted for 16, 20 and 24bit quantization. In addition each pair of digital outputs can be independantly selected for standard resolution (44.1/48kHz) or high resolution (88.2/96kHz) making these converters ideal for working on 5.1 mode suround projects. Custom packages with SPDIF (coaxial or optical) and DA-88 50 pin interfaces are also available

  • .

Whether your application is digital multitracking, broadcast, video post-production, 5.1 or 7.1 surround sound, or configuring a custom system, treat your ears to the sound that you deserve and expect!

 

Octal DC8-224ADC A/D Converter
Octal DC8-224ADC 8-Channel A/D Converter

 

SPECIFICATIONS:

Dimensions: 1.75 (H) x 19 (W) x 9 (D)
FRONT PANEL CONTROLS
Input level trim: nominal +4 dB or -10 dB
Digital level Indicator: indicates -30 dBFS to 0 dBFS audio for each channel
Digital Peak Indicator: measures full scale (0) audio for each channel
Channel 1 & 2 quantization: 16-bit, 20-bit or 24-bit quantization selection
Channel 3 & 4 quantization: 16-bit, 20-bit or 24-bit quantization selection
Channel 1 - 4 Sample Rate divide: selects 44.1/48 kHz or 88.2/96 kHz
Channel 5 & 6 quantization: 16-bit, 20-bit or 24-bit quantization selection
Channel 7 & 8 quantization: 16-bit, 20-bit or 24-bit quantization selection
Channel 5 - 8 Sample Rate divide: selects 44.1/48 kHz or 88.2/96 kHz
Sampling Rate Select: Internal 88.2, 96.0 or External word clock
REAR PANEL
Power: 120VAC 60 Hz
Digital Output: 4 x AES/EBU INTERFACE (XLR)
110 Ohm Transformer isolated/5 Volt peak at data rates from 1.92 MHz to 6.4 MHz
External Work Clock Input: BNC connector, TTL compatible, 1000 Ohm termination
Can lock between 28-100 kHz
DC8-224ADC PERFORMANCE
Frequency Response: +/- 0.2dB 10 Hz to 24 kHz
S/N ratio: >115 dB unweighted
THD: <0.0005% 20 Hz - 20 kHz
Max input level: +24 dBu (XLR)
Min input level: (FS) +10 dBu
Input impedance: (balanced) >5k Ohm
CMRR: >80 dB 20-1k Hz, >60 dB 1K-20 kHz
Crosstalk: <110 dB 20-20 kHz
 

Price: $3920


 

DC8-224DAC D/A Converter

The DC8-224DAC provides eight channel of digital to analog conversion in one easy to use 1U 19" chassis. Ideal for multi channel play back for digital recorders and for use with 5.1 and 7.1 surround sound. Each of the four AES/EBU digital input channels provides speed and error indication. Dual phase locked loops are used to insure low jitter clock recovery for clean, low distortion operation. Eight analog outputs provide up to +24 dBu output levels at 0dBFS digital inputs with adjustable output levels for operation between +10 dBu and +24 dBu. A proprietary analog output drive circuit allows balanced or unbalanced operation without signal level shift.

 

DC8-224DAC 8-Channel D/A Converter
DC8-224DAC D/A Converter

 

SPECIFICATIONS:

CONVERTER FEATURES (PER CHANNEL)
Dynamic Range: 115dB rms Re: +24dBu unweighted
Frequency response: +/- 0.2dB 10Hz to 20KHz
THD + Noise: less than -100dB typical 20Hz to 20KHz
Inter-channel phase deviation: <0.25 degrees, 10Hz to 20KHz
Inter-channel crosstalk: <-110dB 20Hz to 20KHz
Output Range @ 0dBFS: Differential balanced, +10dBu to +24dBu
AES Outputs: Professional AES/EBU transformer isolated, 110 Ohm XLR
Sampling Rates: Each channel will lock to AES input sample rates from 24kHz to 100kHz
Word Length: up to 24 bits
Dimensions: 1.75(h) x 19 (w) x 9 (d)
Power: 120VAC 60Hz
 

Price: $3890


 
For more information, see the Troisi Design, Ltd. website.
For product manuals, see the Troisi Design, Ltd. publications page.
 

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i© 1997 Posthorn Recordings

Most recent revision June 24, 2002