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T+A DAC 8 24/192 Balanced XLR and Unbalanced RCA Output

Description

In fundamental form it contains everything required to convert any form of digital source into analogue signals to the very highest standards. It is a complete high-end device of the most elevated quality, from the case right through to the mains power supplies. The case is of all-aluminium construction: the base plate and top cover are machined from solid aluminium plates 6 mm thick, and we make the side and front panels from aluminium profi les which are extruded using special complex tools. The heavy case rests on vibration-damped absorber feet.

The seriousness of our claim that the DAC 8 is one of the world’s fi nest high-end converters can be judged by the fact that we employ two separate, sophisticated mains power supplies for the analogue and digital sections. A volume control is another unusual feature in a DAC, but it makes good sense if the user wishes to install active loudspeakers, or employ the DAC 8 as a pre-amplifi er in conjunction with external power amplifi ers. The volume control is of highly refi ned design, and exploits analogue control elements down to low volumes, as they avoid any loss of dynamic quality even at low listening levels. Two gold-contact relays are provided to by-pass the volume control, i.e. it can be removed entirely from the signal path when not required. A high-quality headphone output is also present.

The core of the DAC 8 is the converter. As in our high-end players this device also employs the superior quadruple arrangement with eight 32-bit converters from Burr-Brown in a double symmetrical circuit. This circuit provides perfect compensation for non-linearities, and the residual background noise - which is excellent in any case with the 32-bit converters we employ - is reduced by approximately a further 6 dB. The result is a dynamic performance which is hardly capable of improvement, with a perfect “black level”, extreme linearity and freedom from distortion, even in critical passages and the most minute musical details. Oversampling is carried out by a modern 56-bit signal processor, for which T+A has developed algorithms specifi c to our equipment, offering perfect timing characteristics. They are based on Bezier polynomials: Bezier interpolation and Bezier / IIR combination. A standard FIR fi lter and a short FIR fi lter are also provided. These options make it possible to select the optimum sound quality to suit the individual piece of music. The “State of the Art” analogue stages are of fully discrete and symmetrical construction, and do not employ OP-AMPs. Their linearity is not a function of “hard” negative feedback, as is typical of OP-AMPS, but rather od the quality of the circuit design and the components employed, which are selected and matched to very fine tolerances.

D/A converter: 32-bit, 384 kHz Sigma-Delta, eight-times oversampling, double-mono quadruple
Analogue Filter: 3rd order phase-linear Bessel fi lter, switchable 60 kHz or 120 kHz
Frequency Response: 2 Hz - 20 / 22 kHz 44.1 / 48.0 kSps
                              2 Hz - 40 kHz 88.2 / 96.0 kSps
                              2 Hz - 80 kHz 176.4 / 192.0 kSps
Total Harmonic Distortion: < 0.001 %
Signal to Noise ratio, A-weighted: 116 dB
Channel separation 110 dB
Analogue Outputs: Co-axial (RCA) Fixed and Variable 2.5V
                           Balanced(XLR) Fixed and Variable 5V
Digital Inputs: SP/DIF (16 - 24 bit): 4 x co-ax, 1 x BNC, 1 x AES/EBU up to 192/24, 1 x TOS-Link up to 96/24, 1 x USB with USB Audio Class 1 (USB Full Speed) up to 96/24, adaptive mode and USB Audio Class 2 (USB High Speed) up to 192/24, asynchronous mode

Dimensions:  10.675"W x 11"D x  3.5"H. Weight: 9 lbs.
Current Model. Retail $3500.

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This item may be viewed at:
AUDIO VIDEO CHOICES, Inc.
601 E Indian School Rd, Suite 200
Phoenix, AZ 85012
(602) 265-1628
Open Tues - Fri 10am-6pm, Sat 10am-4pm
(Closed Sun+Mon)
www.AudioVideoChoices.com