M: USB DAC, esim aktiivikaiuttimien kaveriksi täydellinen

[joosseppi]

Yhteydenotot: padi89(att)luukku.com
Hinta: osta heti 280euroa
sijainti: Lahti
postitus onnistuu ja minä maksan postikulut.

John Kenny JKDAC32

Alle 1000euron hintaluokassa yksi parhaista ja nyt todella herkulliseen hintaan.

Jos sinulla on stereolaitteisto ja äänilähteenä tietokone, niin usb dac on pakko hankinta takaamaan laadukas da muunnos.

Arvosteluja:

http://www.6moons.com/audioreviews/johnkenny2/4.html

Tiedot: http://www.johnkenny.biz/home-1/jkdac32

It's a modified I2S Hiface capable of true 32/192 end-to-end operation .i.e a 32/192 stream is used internally between the USB input & the 32/192 DAC
integrated with a 32/192 DAC (for those that prefer something other than the sound of an ESS DAC chip)
operates exclusively from internal LiFePo4 (Lithium Nano Phosphate) battery
completely portable - will run for >12 hours from fully charged battery
USB input - standard USB type B input socket
RCA analogue outs
Outputs standard 2.1V RMS (line level) for driving preamplifier or amplifier
internal battery charger - requires user supplied 5V DC supply
Can be charged from the computer using a spare USB port using supplied USB charging cable
aluminium enclosure

Technical Highlights:

The asynchronous USB input handles 32bit 192KHz sampling natively & this signal is communicated via I2S to the 32/192 DAC without any upsampling. All of which future proofs the DAC.
The DAC uses a minimum phase, low latency digital interpolation IIR filter which eliminates pre-echo of the signal endemic to other digital filters.
The result of this is a realistic sound closer to NOS DACs. By avoiding pre-ringing a more detailed, dynamic & natural sound is produced.
The unbalanced 2.1V analogue outputs are directly DC coupled to the RCA connectors, no capacitors, no low pass filter or active components in the signal path.

Specifications:

Size: 78x43x120mm (w x h x d, case)
Weight: 420g
Two low jitter clocks to handle both speed families
Sampling frequencies (kHz): 44.1, 48, 88.2, 96, 176.4, 192
Resolution (bits): 16 to 32
Inputs: USB 2.0 Type B socket, (2.1mm socket for battery charger power supply)
Outputs: single-ended line level on RCA
Output voltage: 2.1Vrms
SNR: 112dB (A weighted)
THD+N: 0.002 (-93dB) @ 1kHz, (@ -1dBFS)