news from parasound backgrounder photo library

For Immediate Release:

Parasound's Zdac Digital-to-Analog Converter Extracts the Max from Digital Audio

The Parasound Zdac 192 kHz Digital to Analog Converter is the latest in the company's half-rack-width Z Custom line up.


SAN FRANCISCO (11/5/12) -- Parasound, a San Francisco-based manufacturer of high-end audio components, introduces the Zdac, a 192 kHz Digital to Analog Converter that gives consumers the highest possible sound quality when playing digital music files from computers via USB, or from a CD player, Sonos(R), or other digital media players via optical or coaxial digital connections. Zdac is the newest addition to Parasound's compact 'half-width' Z-Series product family, and it is available in either a black finish with rack-mounting tabs or the new silver finish without rack-mount tabs.

"With the help of acclaimed Danish digital experts Holm Acoustics, Parasound's Zdac brings digital audio converter (DAC) technology to an entirely higher level of performance at a price comparable to many conventional aftermarket DACs," said Richard Schram, President of Parasound. "The Zdac is an ideal upgrade for many components such as digital media players with less-than-optimal on-board DACs, or computer audio, TV audio, CD or other player with digital outputs. It's rugged, reliable, and easy to hook up. Once it is up and running there is little to do but enjoy the music."

The Zdac sounds more natural and less "digital" than DACs selling for far more because of its innovative design and high quality parts. Its unique re-clocking system preserves the original source audio data by eliminating jitter contamination that is picked up along the digital signal chain. This is accomplished through the synergy of two premium parts, an Analog Devices AD1895 asynchronous sample rate converter and an AD1853 DAC IC, the same DAC IC that Holm selected for our Halo CD 1 CD player. To further improve sound quality the signal is up-sampled to 422kHz. This highly effective jitter-reduction system works on all inputs, not just the USB input, as in many other DACs.

Like all Z Series components, Zdac has a high-quality built-in power supply rather than a typical 'wall wart.' In the case of Zdac, an oversized toroid power transformer assures unrestrained dynamics and unparalleled bass extension and authority. All of this quality is available at both unbalanced gold-plated RCA jacks and balanced XLR outputs.

The Zdac headphone output is driven by a low-noise/high current amplifier that will drive nearly any high quality 32- to 600-ohm headphone with ease. A dedicated precision volume control for headphone listening adds to the Zdac's convenience.

The Zdac includes fast-acting muting relays -- usually found only on premium-priced DAC -- to eliminate any hint of transient pops or thump noises during turn on/off and when selecting inputs.

The Parasound Zdac is available in the traditional Z-Series black rack-mount configuration and the new Z-Series silver finish without rack tabs. Both versions are one rack-space high. The black Zdac is 9-1/2 inches wide -- half of a standard rack width -- and the silver Zdac is 8-1/2 inches wide.

The black Zdac can be used with Parasound's SBS side-by-side bracket to link two Z Custom units together, or Zblank for mounting across one standard rack space. Parasound also offers its half-width Zrack for mounting up to five Z Custom components.

Both versions of the Parasound Zdac Digital to Analog Converter will be available the second week of November with a manufacturer's suggested retail price of $475.

About Parasound: Founded in 1981, Parasound Products, Inc., is a privately owned U.S. company that specializes in providing affordable audio and home theater components to the critical listener. Parasound's products are available from quality audio/video retailers, and select custom installation specialists. For more information, visit or call 415-397-7100.

# # #


Press Contact:

Gordon Sell   

908 788-0700


Gordon Sell
Public Relations


Parasound Zdac Specifications:

Supports Incoming Digital Word Lengths: 16 bit - 24 bit

Supports Incoming Digital Sampling Frequencies:
Opt & Coax: 8 kHz, 11.025 kHz, 16 kHz, 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz.

USB: 44.1 kHz, 48 kHz, 88.2 kHz and 96 kHz

USB Streaming Controller: Texas Instruments TAS1020B

Upsampling Frequency: 422 kHz / 24 bit (all inputs)

Sample Rate Converter: Analog Devices AD1895

D to A Converter: Analog Devices AD1853

Frequency Response: 20 Hz to 20 kHz ±0.2 dB

Channel Balance: < 0.05 dB, 20 Hz - 20 kHz

Channel Separation: > 95 dB, 20 Hz - 20 kHz

Signal to Noise Ratio: 110 dB, A-weighted

THD + Noise: < 0.015 %


Audio Output Level:
Unbalanced: 2.1 V rms
Balanced: 4.2 V rms

Output Impedance:
Line out: 160 ohms, balanced or unbalanced
Headphone out: 40 ohms

AC Power Requirement: 10 watts
110-130 VAC 60 Hz
220-240 VAC 50 Hz
voltage is selected on the chassis bottom

Width: 9.5” - 241 mm (black); 8.5” - 220 mm (silver)
Depth: 10” - 254 mm
Height, with feet: 2” - 51 mm; without feet: 1.75” - 45 mm

Net: 5 lbs (2.3kg)
Shipping: 8 lbs (3.7kg)

Rack Mount Accessory (Black Zdac only):
SBS: Side by Side Mounting bracket, purchased separately
Zblank: Panel extender, purchased separately
(Silver Zdacs cannot be rack mounted)


Parasound Products, Inc.
McKinnon Ave.
San Francisco CA   94124

(415) 397-7100

Gordon Sell Public Relations
63 Main Street
Flemington, NJ 08822

(908) 788-0700