I am offering the DA24QS from Beis Elektronik.

It is in very good condition, like new, and in perfect working order.

I am selling this unit because I have built several of them and no longer have any use for them.

The unit is equipped with the DA24QS-IOP DAC from Beis Elektronik.

Four different digital sources can be connected and switched between using a rotary switch.

The quality of the converter is excellent and easily competes with expensive devices on the market.

The analog output stage consists of LM4562 and OPA2134 operational amplifiers.

Please note that the output level is set at 100% FS.

XLR +16 dBu (4.91 Vrms)

RCA Cinch 2 Vrms

The housing is self-designed, with the housing components supplied by Schaeffer AG, Berlin. It is made of silver anodized aluminum. The front and rear panels are 2mm thick, while the top and bottom panels are 2.5mm thick. The lettering is engraved and backed with black ink. Rubber feet are provided on the bottom of the case.

Included is a standard power supply 12VDC.

Please feel free to contact us if you have any questions.

Technical specifications:

DAC

Cirrus Logic "Flagship" CS4398

S/PDIF Receiver

Cirrus Logic CS8416

Sample rate: 30 - 216 kHz

Digital audio inputs

2 x on-board optical (Toslink, up to 96 kHz only)

1 x on-board coaxial (RCA), 75 Ω

Option: External AES3 balanced XLR, 110 Ω

Analog outputs

Integrated stereo (RCA), 100 Ω

Option: External balanced XLR, 200 Ω

Output sensitivity at 100% FS

On-board stereo (RCA): 2 Vrms

External balanced XLR option: +16 dBu (4.91 Vrms)

De-emphasis

If the emphasis bit is set:

CD type (50/15) µs) in consumer format

J-17 (333/38.5 µs) in professional format

Dynamic range 20 Hz - 20 kHz

114 dB unweighted, typical

117 dB A-weighted, typical

Frequency response

2 Hz - SR / 2 +0 / -3 dB

Except 192 kHz SR: 2 Hz - 85 kHz +0 / -3 dB

Power supply rejection ratio

approx. 93 dB at 100 Hz

Power supply

12 VDC, approx. 200 - 300 mA

This is a private sale; I exclude liability for material defects, warranty, and return.