Benchmark Media DAC1 Pre - Stereo Pre with 24/193 D/A Converter

Additional Photos:

The DAC1 PRE is the culmination of years of high-precision analog and digital audio circuit design. Benchmark has achieved unprecedented sonic purity in their audio systems through an intelligent engineering philosophy - establish a pristine analog delivery path and eliminate digital distortion artifacts. The DAC1 PRE continues this tradition of excellence.
With six stereo inputs and four stereo analog outputs, the DAC1 PRE anchors expansive media systems and provides a pristine audio path from source to amplifier. The six stereo inputs include an analog input, a USB computer input, an optical input, and three coaxial digital inputs. The output section includes stereo XLR balanced, RCA unbalanced, and two headphone jacks driven by Benchmark's HPA2 0-ohm headphone amplifier.
The acclaimed DAC1 D-to-A conversion system
Engineers and audiophiles have grown to rely on Benchmark for critical digital audio conversion for more then 10 years. They are consistently finding themselves engaged in the music when using Benchmark digital analog converters - engaged in a way that is rarely achieved with digital converters.
The superior performance of the award-winning DAC1 has made it the 'Benchmark' of D-to-A converters. The DAC1 PRE gracefully merges the DAC1 conversion system with elegant analog circuitry, Benchmark's HPA2 0-ohm headphone amplifier, and essential features and functions.
Jitter-Immune UltraLock Clock System
Benchmarks proprietary UltraLock clock system achieves an unprecedented immunity to jitter. Many modern (and expensive) converters suffer from significant jitter-induced distortion. If jitter is not effectively addressed, a converter will generate non-musical sideband tones and digital distortion. Benchmarks highly-regarded UltraLock clock system ensures that jitter is never a problem, even under extreme conditions.
Even in the presence of extremely high input jitter, no jitter-induced artifacts can be detected on the outputs of the DAC1 PRE (using state-of-the-art testing equipment by Audio Precision). UltraLock will block more then 12.5 UI of jitter (@ 1 kHz). With the UltraLock clock system, the D/A conversion-clock in the DAC1 PRE is totally isolated from the clock of the digital audio source. The UltraLock clock system easily outperforms most well-designed two-stage PLL designs.
The bottom line is this: Benchmark converters will consistently and faithfully deliver truthful audio without jitter-induced artifacts, no matter what variables are present.
AdvancedUSB Audio Technology
The USB interface of the DAC1 PRE operates with Benchmarks unique AdvancedUSB technology. Unlike many USB equipped D/A converters, Benchmark's AdvancedUSB technology supports 24-bit audio at sample rates up to 96 kHz without the installation of any drivers or other special software. Benchmarks UltraLock clock system isolates the converter from the high levels of jitter that are found on USB interfaces. AdvancedUSB responds automatically to sample-rate changes to bypass the operating systems sample-rate conversion. The DAC1 PRE achieves transparent, audiophile-quality playback through a true plug-and-play USB DAC.
It is very important to have a 24-bit USB path, even for 16-bit playback, because digital volume controls and other DSP function s can increase 16-bit audio to 24 bits. If a 16-bit USB DAC is used, up to 8 bits of each digital audio sample will be truncated resulting in significant, non-musical digital distortion at audible levels.
Audio streamed via USB is subject to significant amounts of jitter. The AdvancedUSB interface utilizes the UltraLock clock system. Consequently, the performance of the USB input is equal to the performance of the other inputs, regardless of the jitter present. The DAC1 PRE is natively compatible with Windows Vista/XP/2000 and Mac OS X. As a native device, there are no drivers or other software required to install or configure.
HPA2 Headphone Amplifier
The DAC1 PRE includes the HPA2 - Benchmark's signature high-current, 0-Ohm headphone amplifier. The HPA2 is arguably the ultimate reference headphone amplifier. It will deliver the full rated performance of the DAC1 to the headphones. The HPA2 maintains less than 0.0003% THD+N under a full load from two sets of headphones. The DAC1 PRE has two 1/4" headphone jacks on the front panel.
Q & A
Reviews
Protect your investment with the Long & McQuade Performance Warranty
A warranty can be a very important factor when making a buying decision. Because repairs can be very expensive in terms of parts and labour costs, manufacturers usually only provide one year limited warranties that generally only cover items that malfunction due to a manufacturer’s defect. With an important purchase such as a musical
instrument or piece of studio gear, however, many people want to have the peace of mind in knowing that their investment will be protected should the product no longer be performing at 100%.
Because of this, Long & McQuade provides our customers with a FREE one-year Performance Warranty on most of our products. The Long & McQuade Performance Warranty supplements the manufacturer’s warranty to ensure that our customers receive complete “no hassle” warranty coverage within their first year.
How does the Long & McQuade Performance Warranty differ from most manufacturers' warranties?
- Performance Guarantee: Normal wear and tear is covered, so your product will be performing as well as the day you purchased it for the entire duration of the coverage. Band and Orchestral Performance Warranty does not include replacing pads or cleaning for woodwind instruments, unless deemed necessary by our repair staff. Ultrasonic cleaning for brass instruments will be provided if deemed necessary by our repair staff, but is not routinely offered under the Performance Warranty.
- Product Replacement: If your product cannot be fixed or costs too much to fix, we will replace it with the equivalent model for no additional charge. If this is not possible, a full refund will be provided.
- No Lemon Policy: Your product will be replaced should the same problem occur multiple times.
- Convenient: Easy drop off and pick up of the product at any Long & McQuade location.
- Guitar Setup: Guitars purchased at Long & McQuade come with 1 free setup, to be redeemed within 1 year for new guitars and 90 days for used guitars.
- Loaners Available: A loaner product may be given while the product is being repaired.
- Power Surge Protection: Your product is covered even if damaged from a power surge.
- Accessory Coverage: Any peripheral devices or accessories that come with your product (i.e. foot pedal, case) are also covered.
- Commercial Use Coverage: Music and recording professionals who purchase gear for “heavy-use” commercial purposes will still be covered.
Long & McQuade reserves the right to restrict the purchase of additional years of Performance Warranty. Used products come with a 3-month Long & McQuade Performance Warranty. Some products (i.e. computers, software, cymbals and other items) are covered only by the manufacturer‘s warranty. Consumables (i.e. strings, reeds, drum sticks, batteries, tubes, cross faders) are excluded as they are designed to be replaced. Cosmetic Damage, Accidental Damage, or problems caused by Humidity or Temperature Issues are not covered. Speakers damaged by overpowering are generally not covered. Our coverage does not provide compensation for loss of use. As of June 2018 the Performance Warranty is no longer transferable. The warranty is only valid in Canada.
Purchasing additional years of coverage
Some manufacturers provide warranties for longer than 1 year; however, these are usually limited warranties that do not provide the same coverage as the Long & McQuade Performance Warranty. Customers interested in more complete and convenient (but not necessarily longer) coverage are still able to purchase additional years of the Performance Warranty.
If you are interested in receiving this coverage for longer than one year, you have the option of purchasing additional years of the Performance Warranty. The pricing is as follows:
- NEW products: Starting at 4% of the current new selling price to double the warranty from 1 year to 2 years. Starting at 4% for each additional year.
- USED products: Starting at 4% of the current new selling price to increase the warranty from 3 months to 1 year. Starting at 4% for each additional year.
- GUITARS: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year. $45 maximum. An additional free setup is not included with additional purchased years of Performance Warranty.
- BAND and ORCHESTRAL instruments: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year.