The Well-Tempered Computer, an introduction to computer audio

Sunday, July 8, 2012

Linnenberg u:c:a

Pre-amp with USB and SPDIF inputs and RCA and headphone out.



USB input uses the M2tech OEM circuit (Win/Mac) but a new receiver using the XMOS XS1-L1 is planned allowing for full USB Audio Class 2 support (Win, OSX, Linux).

DAC: TI/Burr Brown PCM1794A with TI/BB4192 sample-rate converter.
Upsampling to 192kHz, regardless of input rate. Master clock oscillator with 3ps periodic jitter. Passive I/U conversation with 0.1% precision resistors, zero feedback.

Headphones amplifier: Full discrete construction. NO OPAMPS. NO CHIPS. Volume control with selected blue Alps attenuator. 6.35mm phone jack output. 1000mW continuous sine power output. 1Ohm output impedance. Suitable for 32 – 600 Ohms cans.

Sampling frequencies:44.1, 48, 88.2, 96, 176.4, 192kHz, (plus 32kHz S/PDIF)
Resolution:Up to 32bit, (24bit S/PDIF)
Frequency response:1Hz - 24kHz +0.1dB -0.5dB
Distortion and noise:<0.01% 10Hz - 20kHz @ -10dB
Output level:4V rms
Output power:2 x 500mW continous @ 32 Ohms
Output impedance:1 Ohm
Mains voltage:115V, 230V factory set
Dimensions (H x W x D):55 x 165 x 224 mm

Website Linnenberg
Price: €1.190