orchardaudio Posted May 11, 2018 Author Share Posted May 11, 2018 For those who are interested. Here are some additional specs: Balanced Output Voltage: 5 Vrms (0dBFS) Balanced Output Impedance: 200 ohms Single Ended Output Voltage: 2.5 Vrms (0dBFS) Single Ended Output Impedance: 100 ohms Link to comment
Panelhead Posted May 11, 2018 Share Posted May 11, 2018 3 hours ago, orchardaudio said: I got a hold of a much newer Audio Analyzer, here is how the FFT of -60dBFS 1kHz signal looks like, a-weighted. 0dBFS = 5Vrms. That is an impressive noise floor. Looks to be 24 bit data. What does -90.3 dB 1Khz look like at 16 and 24 bit? 2012 Mac Mini, i5 - 2.5 GHz, 16 GB RAM. SSD, PM/PV software, Focusrite Clarett 4Pre 4 channel interface. Daysequerra M4.0X Broadcast monitor., My_Ref Evolution rev a , Klipsch La Scala II, Blue Sky Sub 12 Clarett used as ADC for vinyl rips. Corning Optical Thunderbolt cable used to connect computer to 4Pre. Dac fed by iFi iPower and Noise Trapper isolation transformer. Link to comment
orchardaudio Posted May 11, 2018 Author Share Posted May 11, 2018 3 hours ago, Panelhead said: That is an impressive noise floor. Looks to be 24 bit data. What does -90.3 dB 1Khz look like at 16 and 24 bit? Here yo go: 16-bit -60dBFS (A-weighted) 16-bit -90dBFS (A-weighted) 24-bit -60dBFS (A-weighted) 24-bit -90dBFS (A-weighted) 16-bit Silence (A-weighted) 24-bit Silence (A-weighted) buonassi 1 Link to comment
Panelhead Posted May 11, 2018 Share Posted May 11, 2018 I must have money burning holes in my pocket. Talked myself out of a pair of the ACA balanced monos. The whole stack with the screen sure looks good. 2012 Mac Mini, i5 - 2.5 GHz, 16 GB RAM. SSD, PM/PV software, Focusrite Clarett 4Pre 4 channel interface. Daysequerra M4.0X Broadcast monitor., My_Ref Evolution rev a , Klipsch La Scala II, Blue Sky Sub 12 Clarett used as ADC for vinyl rips. Corning Optical Thunderbolt cable used to connect computer to 4Pre. Dac fed by iFi iPower and Noise Trapper isolation transformer. Link to comment
buonassi Posted May 11, 2018 Share Posted May 11, 2018 will this have user selectable filters (interpolation). Or will this be fixed at linear phase fast rolloff? Link to comment
orchardaudio Posted May 11, 2018 Author Share Posted May 11, 2018 No user selectable filters. Link to comment
luismc Posted May 12, 2018 Share Posted May 12, 2018 Very interesting DAC, a NOS version with a current production chip DAC (pcm1794). Only a question, which type of I/V converter are you using? (opamp, passive, etc.) Intel DH67BL motherboard. Intel i7-3770 CPU. 16 GB RAM DDR3 1333. HDPlex H5 2nd Gen. HDPlex Linear PSU 200W. HDPlex 300W DC-ATX psu. ifi-iUSB3.0 / ifi-iGalvanic3.0, Paul Pang V2 USB card. Asus Xonar Essence STX. Nixon Saru DAC TDA1543 nos, DIYINHK USB interface, diy PCM1704 NOS DAC, ifi nano DAC. ODAC. diy Pass F4 & BA3 frontend, diy EML-320BXLS SE amp., diy D.Self Compact Blameless, diy Aksa 55. PGA2310 Volume Control. Dual boot Windows Server 2019 GUI - Windows Server 2019 (Core) Bug Head 7.27 (avx), Foobar2k, Hysolid WTFplay Link to comment
orchardaudio Posted May 12, 2018 Author Share Posted May 12, 2018 2 minutes ago, luismc said: Very interesting DAC, a NOS version with a current production chip DAC (pcm1794). Only a question, which type of I/V converter are you using? (opamp, passive, etc.) Op Amp I/V converter using OPA1612s. Link to comment
orchardaudio Posted May 12, 2018 Author Share Posted May 12, 2018 Less than 24 hours to go... https://www.kickstarter.com/projects/1844799967/applepi-dac-highest-performance-raspberry-pi-dac/ Link to comment
orchardaudio Posted July 22, 2018 Author Share Posted July 22, 2018 Both the ApplePi DAC and Volume-Clocker are now available for purchase. You can buy from my ebay store here: ApplePi DAC -- https://www.ebay.com/itm/283068026346 ApplePi Volume-Clocker -- https://www.ebay.com/itm/283046502392 You can also send me an email to [email protected] to buy direct and save 5%. Link to comment
The Computer Audiophile Posted July 23, 2018 Share Posted July 23, 2018 Hi @orchardaudio - Please stop the commercial posts. We have options for companies such as a sponsored forum or advertising. You are allowed to post when someone asks you a specific question about one of your products or is there is confusion that you can clear up. If you have any questions please let me know. Founder of Audiophile Style | My Audio Systems Link to comment
davide256 Posted July 23, 2018 Share Posted July 23, 2018 lots of hyperbole posted but I've seen no credible reviews yet. As someone who plays around with these devices, I see it as having a glaring gap. There is no identified means to power it independently with something like the LPS 1.2 which makes the device a non starter for me. Regards, Dave Audio system Link to comment
orchardaudio Posted July 23, 2018 Author Share Posted July 23, 2018 9 minutes ago, davide256 said: lots of hyperbole posted but I've seen no credible reviews yet. As someone who plays around with these devices, I see it as having a glaring gap. There is no identified means to power it independently with something like the LPS 1.2 which makes the device a non starter for me. You can power the device separately through the Micro-USB connector, please look though the install instructions here: https://drive.google.com/file/d/1b6Y6fvdK50TgxC3CAdWk2_2lO_vVovy9/view Essentially there is a jumper which disconnect power from the Pi allowing you to power from Micro-USB connector. Also here are two reviews: http://theaudiobeatnik.com/applepi-dac-review-theres-art-in-this-dac-and-it-shows/ https://volumio.org/forum/orchard-audio-applepi-dac-review-t9633.html Also there is a lot of user feedback here: https://www.audiocircle.com/index.php?topic=155479.0 Link to comment
davide256 Posted July 23, 2018 Share Posted July 23, 2018 9 minutes ago, orchardaudio said: You can power the device separately through the Micro-USB connector, please look though the install instructions here: https://drive.google.com/file/d/1b6Y6fvdK50TgxC3CAdWk2_2lO_vVovy9/view Essentially there is a jumper which disconnect power from the Pi allowing you to power from Micro-USB connector. Also here are two reviews: http://theaudiobeatnik.com/applepi-dac-review-theres-art-in-this-dac-and-it-shows/ https://volumio.org/forum/orchard-audio-applepi-dac-review-t9633.html Also there is a lot of user feedback here: https://www.audiocircle.com/index.php?topic=155479.0 Thanks! What about DietPi OS, any chance of it working under DietPi in the near future? Regards, Dave Audio system Link to comment
orchardaudio Posted July 23, 2018 Author Share Posted July 23, 2018 17 minutes ago, davide256 said: Thanks! What about DietPi OS, any chance of it working under DietPi in the near future? It does work under DietPi starting in v6.5 see here: https://github.com/Fourdee/DietPi/issues/1626 Link to comment
BobSherman Posted July 29, 2018 Share Posted July 29, 2018 On 7/22/2018 at 6:57 PM, orchardaudio said: Both the ApplePi DAC and Volume-Clocker are now available for purchase. You can buy from my ebay store here: ApplePi DAC -- https://www.ebay.com/itm/283068026346 ApplePi Volume-Clocker -- https://www.ebay.com/itm/283046502392 You can also send me an email to [email protected] to buy direct and save 5%. Don't send yourApple Pie DAC to amir the great, he will turn it into applesauce. ? buonassi 1 Link to comment
orchardaudio Posted August 6, 2018 Author Share Posted August 6, 2018 Another great review:Review of the ApplePi Audiophile DAC from Orchard Audio Link to comment
The Computer Audiophile Posted August 6, 2018 Share Posted August 6, 2018 7 minutes ago, orchardaudio said: Another great review:Review of the ApplePi Audiophile DAC from Orchard Audio You're account is now on probation. Please heed the warnings. Founder of Audiophile Style | My Audio Systems Link to comment
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now