For sale and in excellent condition is an APL DAC-S that was custom-upgraded by APL to 16 DACs per channel as opposed to the standard version which has 12 DACs per channel. The dac chips are AKM AK4399. Benefits of the increased number of DACs/channel are an absolutely dead background and increased transparency. I used the DAC-s with an Esoteric SA-50 -- a startling improvement over the internal dac of the Esoteric SA-50 (not surprising as the DAC-S has more AK4399 dacs/channel than the highly regarded Esoteric K01). An outstanding DAC. The DAC-S comes with remote and original box/inserts. I will ship double boxed. Shipping to verified PayPal addresses in the continental US. Specifications are available at http://digitalaudiogear.blogspot.com/2011/02/apl-hifi-dac-s.html, and listed below. And a partial listing of specifications is provided below. All-solid-state stand-alone Digital to Analog Converter, Asynchronous Hiface USB interface by M2TECH2 built-in with192kHz/24bit resolution , Asynchronous upsampling working steady at 195kHz/32bit.The AKM DACs see this sample rate at all times, regardless of the input sample rate , 32bit AK4399 DACs by AKM of Japan , 16 per channel , working in special Mono mode (APL) , Lundahl Amorphous Core audio transformers and high-current output buffers , no capacitors on the signal path, Infrared remote control. DAC – USB
32 bit / 195 kHz DAC chip : 32x Asahi Kasei AK4399, that's 16 DAC per channel
upsampling frequencies : 24/192 kHz
4 digital inputs
USB audio class 2 (24 bit / 192 kHz) – asynchronous
OEM version of M2Tech hiFace 2
Coaxial – RCA (24 bit / 192 kHz)
Coaxial – RCA (24 bit / 192 kHz)
AES/EBU – XLR (24 bit / 96 kHz)
4 analog outputs
left & right RCA (unbalanced)
left & right XLR (balanced)
PSU
built in power supply
Specials
remote control
display
output level control High 2.0V or Low 1.0V
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