For sale is the Weiss DAC1-MK3. This is the flagship D/A from one of the best converter designers in the world. I personally think this is the greatest D/A ever made. For monitoring or feeding your analog chain in mixing or mastering there is nothing better. This features the custom upgraded Weiss OP-AMPS that sound stellar. It really must be heard to be believed.

Selling this because I bought two so I'd have a backup. After years of use there has never been a maintenance problem so I'm getting rid of the spare. Lightly used in a smoke-free mastering room.

This retails for $16,000(!) new at Vintake King (look it up), so it's a screaming deal for a lightly used unit in excellent condition.

Details here:  
 

Inputs

There are three digital inputs on XLR connectors, and one on TOSLINK (optical). The accepted sampling frequencies are 44.1, 48, 88.2, 96, 176.4 and 192 kHz. AES/EBU signals in single wire or dual wire formats can be used. Each XLR input is actively routed to a corresponding XLR digital output, allowing for monitoring at multiple stages in a digital studio setup.

De-jittering

Several signal re-clocking schemes are combined for extremely high jitter attenuation, making the DAC1 virtually immune to jitter over a very wide bandwidth, down to subsonic frequencies.

Converter

The correlation technique (using two converters per channel) which was already successfully employed in the ADC1, results in improved SNR and THD figures.

Outputs

In the DAC1-MK2 the discrete Class A outputs have a virtually zero Ω output impedance, but still can drive large loads without stability problems. The DAC1-MK3 uses discrete operational amplifiers of our own design. Called OP1-BP, this operational amplifier probably is the best audio op-amp currently available. Output levels can be set between −infinity and +27 dBu. The outputs are symmetrical, but do not have any sound degrading servo mechanisms built in. For asymmetrical operation only one leg of the XLR connector (plus ground) is used.

Front panel controls

The front panel shows four switches for the input selection and various LEDs for sampling frequency, input word-length and signal presence display. The DAC1-MK2 in addition has two 25 turn trim potentiometers for fine trimming the output level.

Back panel elements

On the back panel there are three digital inputs on XLR and one optical digital input on TOSLINK. Then there are three digital outputs on XLR, buffered from XLR inputs and two analog outputs on XLR. One of the digital XLR outputs can be switched to output the currently selected input.

The DAC1-MK2 in addition has a output level range switch (high/low) while the DAC1-MK3 uses a rotary encoder instead, which allows to set the output level of both outputs simultaneously in a range of 32 dB with a resolution of 1 dB. The 25 pin DSUB remote connector allows to connect a wired remote control unit for level control and input source selection.