Benchmark DAC 1- Pre

Wow, a lot of mis-information here. I've owned benchmark DACs for a few years. I started with the plain DAC1 and now own the DAC1 pre. The DAC1 pre has the same upgrade op amps throughout the analog stage that are in the HDR model. It also has the upgraded RCA plugs AND the DAC1 pre has the USB input along with the toslink and coax digital inputs. There are only 2 differences between the top of the line HDR model and the DAC1 Pre model.
1. The HDR has a remote control.
2. The HDR has a motorized ALPS volume control.
Other than that, the HDR and the PRE models are identical. If you do not plan to use the DAC1 as the preamp, then the two models are effectively identical.

Regarding the sound, the HDR and the PRE sound identical when used in fixed output mode to a preamp. They do not sound identical to the USB and base DAC1 model though. the HDR and the PRE models are more transparent and smidge more forward sounding. This is my findings after hundreds of listening hours with these DACs. They are all world class DACs IMO.

People that value truth over pride are my favorite people. Ivrrobinson is a stand up guy.

Benchmark Media should really do a better job of differentiating between their models. Lots of people find it confusing.

Another tid bit that people don't know is that Benchmark has upgraded parts on occassion from the earliest models of the DAC1 and never changed model names to indicate these changes so all DAC1s may not sound the same.

Here's the comparison chart for anyone wondering about the 4 versions of the DAC1:

Features in all models:

UltraLock™ jitter-immune clock-isolation technology
Built-in HPA2™ reference-grade 0-ohm headphone amplifier
24-bit, 192 kHz digital input capability
Balanced XLR and unbalanced RCA stereo outputs
True-analog volume control on front panel
Calibrated and variable mode to accommodate various systems
Trim-pots for calibrating output levels
Output attenuators for XLR outputs
Internal power supply with low-radiation torodial power transformer
Built in USA
Rackmount capable

Feature differences:

AdvancedUSB input capable of full-resolution 24-bit / 96-kHz
DAC1 NO
USB YES
PRE YES
HDR YES

State-of-the-art LME49860/LME4562 high-current op-amps
DAC1 NO
USB Ouput stage only
PRE Throughout entire analog stage
HDR Throughout entire analog stage

Selectable gain-range for headphone amplifier
DAC1 NO
USB 2 ranges
PRE 3 ranges
HDR 3 ranges

Auto-mute function built into headphone jack
DAC1 NO
USB YES
PRE YES
HDR YES

Auto-standby feature
DAC1 NO
USB YES
PRE YES
HDR YES

Number of digital inputs
DAC1 3
USB 4
PRE 5
HDR 5

Number of analog inputs
DAC1 0
USB 0
PRE 1
HDR 1

High-quality Teflon, chassis mounted RCA connectors
DAC1 NO
USB NO
PRE YES
HDR YES

Standby ON/OFF button
DAC1 NO
USB NO
PRE YES
HDR YES

Remote Control
DAC1 NO
USB NO
PRE NO
HDR YES

Custom-built motorized Alps potentiometer
DAC1 NO
USB NO
PRE NO
HDR YES