after i´ve re-checked my Op-Amp-„collection“ 😉 (in testing them on an ES9038Q2M) and reading a lot of op-amp reviews again, i´ve ordered a few days ago some AD797BR(Z) (as described in some posts before)..
The „B„-line has a stricter factory-selection/-fabrication and is mainly considered as the best AD797 for audio..
by that, curiously, i got the most the site-/page-visits here op-amp-wise, means the main interest is also in the op-amp-section/part/reviews..
so i can/will hopefully test them in a few weeks and the next step (op-amp-wise) would be the „Burson V5/-6″-line..
was also clear, as said in the earliest posts..but they cost around 40-50$ (pair)..
(the third set of pictures here are some Burson V5 on an ES9038Pro->https://hallmanlabs.com/2018/01/04/pictures-of-es9038pro-dac-w-burson-audio-v5-opa-and-orange-amplifications-discrete-design/)
some good toroidal transformer (+-15V) cost also about 30-40$ (min.) and so i/u have to check out which will bring the best „tone/sound“-enhancement (or both of course)..
(Link-Aliexpress or from Audiophonics or something)
„Webcontrol“-ESP32-wise its still in development but primary i think i want now to search for the right case, transformer..
many greets from here for now 😉
(some pics of pc/-hifigear with Burson´s + also a pic from a Gustard H-10 with V6s)
came by chance about this new „Singxer“ USB-Class-driver V4.45..we were at V4.36 and its directly from the same „shenzhenaudio“-folder/website->https://download.shenzhenaudio.com/Singxer/SU-1_driver_7.24_update/,
where we got our lovely „Singxer_USBAudio_v4.36.0_2017-11-14_DSD512.rar“ from; i will test it here; but my ES9038Q2M is now connected to the Pi; will see..(post the driver-pack at the forum too->Link)
The Singxer SU-1 is equipped with one ES9038Q2M + a XMOS XU-208->https://www.amazon.com/Singxer-digital-interface-XU208-DSD256/dp/B01N1OQY1A, https://kitsunehifi.com/product/singxersu1black/
by that i saw some I2S-HDMI-port pinout on the „Matrix X-Sabre Pro ES9038PRO 32Bit/768kHz DSD1024 Audio DAC„->https://www.shenzhenaudio.com/matrix-x-sabre-pro-es9038pro-32bit-768khz-dsd1024-audio-dac.html;
it says:“DSD1024 PCM768
As a new generation of Matrix flagship DAC, X-SABRE Pro not only supports 32Bit/768kHz PCM audio stream playback, but also supports DSD64, DSD128, DSD256, DSD512, and even supports DSD1024 with the sample rate of 45.158MHz via IS input port.“
(thats all „old“ stuff; but just to remember)
greets for now.. 😉
thought about an upgrade to an ES9038PRO by example..
we´ve had here a post to a „HIFIME UDA38PRO DAC“->http://essabre-90xx-rpi.sfb2.com/2018/02/es9038pro-new-es9038pro-out-hifime-uda38pro-dac-es9038pro-sa9227-219e/, 219€ and now looked today through Ebay and found this one:
looks very nice manufactored, nice layout, 4 Op-Amps..
very interesting is also that they recommend:
„..default include NE5532*2 + NE5534*2 Op-amp
you can upgrade the op amps :AD797 AND muses8920“ (have absolutely the same opinion here too (and also at the „DIY-audio.com-forum“; link at the right..)+ our „fabulous“ „OP-Amps recommended by ES-Sabre“-list->Link..
so, but nevertheless i must say that as i heard my combo („Blue“ES9038Q2M+Muses8920) after a little timely distance it is already a superb fine tune/sound..(but as said, u have to use Muses8920 or AD797 or similar)..
by that, some user at the phenomenal DIY-audio.com-forum->Link at the right link-list also said that he also has the impression that the „Blue“-ones sounded „flat“ (as i said/posted before)..
so because it is already a really fine sound/tune here, and this 200 bucks are to expensive for me right now/at present i guess i will maybe order some „Green“ ES9038Q2M (V1.06 or V1.07)->but/and „we“ have to be very careful in selecting the right ones, because there are also absolutely great differences on the „Green“-layouts concerning the quality of the layer+components !!)..->selected „Green“-one (V1.06) for now: Ebay 36€->Link
(interesting feedbacks/ratings btw. !!)
i´ve ordered some LME49720 and will test it against the Muses (next step would be to buy some AD797 or 2 LME49710)..
so i think its the best for now to stuck and further „experiment“ with the ES9038Q2M !!
(and provide it with some really great „Talema“ or something/similar 😉 )
thx to „Krunoslav“ again, he sent us some new driver (V4.38 from matrix-digi.com) to test perfect bitstreaming via wasapi under Win8.1+Foobar+Skysong(Singxer)-XMOS-USB-bridge+ES9038Q2M->see comments->http://essabre-90xx-rpi.sfb2.com/2018/02/es9038q2m-es9018k2m-dsd-perfect-bitstreaming-win8-foobar2000/#comment-50..
unfortunately it doesnt work here for me but i will upload it to the forum anyway (LINK)..but be careful i had here very great problems with my antivir..
but curiously after installing my buffer-/“stuttering“-problems with files above 16/44,1 (now here in 24/192 no problems) with the Skysong(Singxer)-XMOS-USB-bridge+ES9038Q2M (via I2S) are gown away 😉 ..
but still these new ES9038Q2M (in any case the pcb i have here->the „blue“ one) sounds for me still like plate/sheet..(„old problem“->we still have to evaluate if its a „shitty“ pcb/components and if the „green“ ones sound better)..
USB-> PCM 16-32Bit /44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768kHzDSD DSD64/128/256 (DoP/dCS) DSD64/128/256/512 (ASIO Native)
came here by chance to a new very interesting ES9038Q2M-forum->
some interesting pics/news on it, par example that the Green 1.06 has 7805 instead of 7808 on it and so on 😉 ->
by that, there is also a link to a 9038Pro-DAC (DACES9038PRO) designed by Andrea Ciuffoli/Quang Hao + a lot of interesting infos around the schematics of the sabre-chips->http://www.audiodesignguide.com/DACES9038PRO/
greets for now 😉
hi there !! 😉 ,
came by chance about this gem->HIFIME UDA38PRO DAC (ES9038PRO + SA9227) with an ES9038pro !!
just absolutely fresh out->yesterday or so->“HiFimeDIY:
07/02/2018, 07:06:32 AM
Hi everyone, it’s now available to order! https://hifimediy.com/uda38pro-usb-dac-es9038pro Some more data will be added to the description soon. We do have a few units available now, and more after Chinese New Year. And we managed to get the price down to 219€„..
„The Hifime UDA38Pro utilises the ESS Sabre ES9038Pro DAC chip that has received a lot of attention and praised as the most important new DAC chip in ages…We have paired the ES9038Pro with OPA1622 output stage amplifier that can drive a wide range of loads including low and high impedance headphones and also line level loads like preamps and amplifiers… it can achieve up to 140dB !! dynamic range, -122 dB (0.00008%) total harmonic distortion plus noise (THD+N) in mono mode
Specs: (to come..)