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It is a PSM2706 USB receiver chip sending I2S digital data to the Wolfson WM4870 DAC (still 16 bit/48K). I believe the PCM2706 can output analog or S/PDIF but the D2 doesn't use either of those since the Wolfson can do a better job digital to analog, and I2S is much better out of the 2706 than S/PDIF as well (less jitter).
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Originally Posted by Sovkiller
There is no doubt that getting older is mandatory, but to mature remains still optional...
LarryHead-Fi Feedback MAIN RIG: Marantz CD5001 > Synergistic Research Coax > Apogee mini-DAC with Sigma 11 PSU > ALO SXC XLR IC's > Single Power Square Wave XL balanced amp > balanced markl woodied Denon D2000 with APS V2 cable >>> ALO SXC mini-RCA IC > Woo GES Maxed > Sennheiser HE60/Stax O2 Mk2 >>> or to Woo Audio Maxxed WA6 w/Sophia Princess rectifier/RCA 6DE7 > Grado RS-1 with APS V3 cable. BEDSIDE RIG: Sony D-303 or iRiver H140 > Sysconcept.ca optical > HeadRoom Micro DAC > barqy silver plated copper mini-RCA > Travagans Red and Black > Edition 9 with APS V3 cable. BASEMENT RIG: iBook > USB PICO > Head-Direct EF1 with RCA cleartop > ATH-ESW10JPN. PORTABLE RIG: iMod 80gb 5.5G > barqy silver in silk LOD > ALO portable V-Cap dock > ALO Cryo Silver X mini-mini > RSA Predator > Livewires T1. LAPTOP RIG: MacBook > USB iBasso D2 > RS-1 or Edition 9 with APS V3 cable. FOR SALE: Ibanez starter electric guitar (red) with scratches, Ibanez amp and softcase in great condition - PM me for pics.
Dear Sir,
Thank you for your email.
The following is the spec of the Boa DAC
Frequency Response: 20Hz~18 KHz +/- 0.5dB (DAC)
Signal to Noise Ratio：97dB (DAC)
Crosstalk: 93dB (DAC)
Total Harmonic Distortion: 0.006%@1kHz/0dB (DAC)
Sincerely
iBasso Audio
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Originally Posted by tfarney
If anything is true of the Audiophile Mentality, not just here, not just headphones, it is that it is often driven by the desire to purchase something and then the desire to justify that purchase.
My D2 has a major problem with the usb ports on my Lenovo S10 netbook. Only one port is now working. They used to both kind of work so the problem is getting worse. It loses connectivity on the other anytime I jiggle the connection. Other USB devices HDDs etc. work fine on the ports. The D2 and cable work fine on other computers. Anybody know what is going on here? Please Help!
My D2 has a major problem with the usb ports on my Lenovo S10 netbook. Only one port is now working. They used to both kind of work so the problem is getting worse. It loses connectivity on the other anytime I jiggle the connection. Other USB devices HDDs etc. work fine on the ports. The D2 and cable work fine on other computers. Anybody know what is going on here? Please Help!
Do you have another USB cord you can use with the D2? I have one that doesn't have great contacts and just a bit of movement messes things up.
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John aka Jam and Jama Photo gallery at:www.pbase.com/jamato8
The one constant in life is change, so will that change?
Feel with your own heart, see with your own eyes and hear with your own ears. Sand is sand no matter where it is found. Listening to: The Greatful Dead, The Closing of Winterland 1978, Fillmore West 1969, Lucinda Williams, Leonard Cohen Amps I am currently listening with: RSA B-51, iBasso T4, SR 71A, new Xin Reference Favorite headphone: Ultrasone Ed. 9 #1010 Portable amp ratings: *1. SR-71A *2. iBasso D3 *2b RSA Predator *3. Xin Micro *5 iBasso P3 *5b. Mini IV *6. D1 iBasso upgraded amp *6b. iBasso P2 (upgraded opamps) *8. C & C Box (good decay, tilted up high frequency, slightly synthetic) *9 iBasso T1 *10. iBasso T2 *11. XTRA X-1 (warm not neutral, very musical) *12. LD M+ These amps are enjoyable to listen to and present a slightly different interpretation of the musical signal. Portable monitor ratings: *1. PortaPros, KSC35 (modified-a great value) *2. Amadana P-117 bamboo *3. UM2 (respond to top quality amplification but I don't enjoy their sound) *4. OVC 8+ Source: iRiver H130,140, D303 optical out, D-EJ955, D-EJ1000, D-EJ2000, 25s, 25, D-303, D-777 and others (optical out if available) Digital Conversion: Altoid tin Monica Dac I, Altoid tin Monica II Asynchronous Reclocking Dac. Headphone Amplifiers: iBasso D1, IV Micro, IV Mini, Xin Reference, SM3B, SuperMacro V LE, SM3 V6 Xin (IV all switches), XRTA X-1, LD Micro +, LD Micro Tube, C&C Box, iBasso P1, P2, D1, D2, Woo 3 Modified-Siemens 6922 driver, 7236 power tube, Woo 6 Modified Pseudo dual PS - Headphones: Ultra Ed. 9, HD650, Ultrasone 750, HFI780, PortaPro modified, KSC35, Equation RP-21, Westone UM2
Do you have another USB cord you can use with the D2? I have one that doesn't have great contacts and just a bit of movement messes things up.
All 3 of the cables that I tried had the same connectivity problems. What fixed the problem was plugging an old usb hub in between the Lenovo S10 and the D2.
iBasso also promptly responded to my email for help:
"Dear Sir,
Thank you for your email.
I think it is a USB connection problem. The USB ports on your laptop do not match with the USB cable well.The problem can be solved by changing the USB cable in my opinion. I suggest you to find any other USB cable
If you have any further questions, please feel free to let me know."
Sincerely
iBasso Audio
The USB hub is not the most elegant solution but it works. Complaining to Lenovo is probably not going to get me anywhere because it is only the D2 that is having problems. Other devices seem to be ok.
Wow I read through 50 pages of this and it convinced me I needed a D2 Boa. I was pretty convinced by the 3rd page I think =/. I'm a pushover.
Sorry for my 187 dollars.
Probably the last thing I'll be buying until 2009 (Please, God? ) So excited to try this DAC on my crappy, crappy, crappy sounding laptop. Also I'm curious to see how it compares to my mint tins on the iPod.
Haha the exact same thing happened to me. I was sitting at my desk, listening to my iPod and DT770s with no amp, reading all the reviews. After reading everyone's comments for about an hour I was like alright...screw it...and whipped out the plastic.
Mine should be arriving tomorrow. I plan on working from home that day just so I can be there when it shows up.
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Home: x2 NAD C272 Mono Blocks, Music Hall MMF 5.1 Turntable with Goldring 1012 cart, Bellari VP129 Tube Phono Pre, Paradigm Studio 60 v3 Speakers, NAD T532 DVD Player
Portable: iPod 5th gen 30 gig, Beyerdynamic DT770 Pro-80
) So excited to try this DAC on my crappy, crappy, crappy sounding laptop. Also I'm curious to see how it compares to my mint tins on the iPod.
Linear Mode
