Senior Member
Location: Taichung City
Posts: 116
Hi Dan,Originally Posted by Dan Giovanni
I don't have much (if any) technical experienceThank you for offering help!
Yes, the regs gave -8v even when not connected to the DAC. IIRC, nothing got dangerously hot on the faulty reg, at least not noticeably hotter than the functioning one.
Cheers,
Alex
New Member
Location: Brisbane, AU
Posts: 2
I'm Phil.
Expect my impressions soon®.
<snip>
*soon® is a trademark of Twisted Pear Audio, registered in numerous countries
Oh so true.
I'm (im)patiently waiting for their USB transport...
(After (im)patiently waiting for Buff2 ;p)
Site Owner/Administrator
Location: Wrexham, North Wales, UK
Posts: 110,442
I'm AudioAl'sArbiterForPISHANTO.
Hi 'Spirit',
Welcome to AOS
Could you please pop into the Welcome area and introduce yourself to our community by supplying your first name, basic geographic location, system details and music tastes, as this is the requirement for all new members joining AOS.
Cheers!
Marco.
Main System
Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.
Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.
Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.
CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.
Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.
Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.
Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.
Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.
Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.
New Member
Location: Cheltenham, UK
Posts: 27
OK, next is the raw supply the same on both sides? Also, the voltage across C16 should be the same as that across C6. Ditto R5 and R15, and ZD1 and ZD2.Hi Dan,
I don't have much (if any) technical experience
Yes, the regs gave -8v even when not connected to the DAC. IIRC, nothing got dangerously hot on the faulty reg, at least not noticeably hotter than the functioning one.
Cheers,
Last edited by Dan Giovanni; 25-09-2010 at 16:29.
Senior Member
Location: Taichung City
Posts: 116
Hi Dan,
Sorry for the late reply, I just came back from a trip
Since I didn't have any spare parts at hand, I decided to send them back to UCC for repairs. Turns out that the 2SK170GR and LM336 5V were broken. Repairs incl. shipping were free. I guess that is why they don't sell kits/modules overseas
Edit: Have you had the opportunity to listen to the Legato+Jensens? I hope that the transformers sound better with a proper I/V stage. They do in my case!
Cheers,
Last edited by squeezethatbuffalo; 02-10-2010 at 13:44.
Alex
Senior Member
Location: Taichung City
Posts: 116
Heh, I know how you feel. By the way, do you happen to have the same ID on another UK audio forum?
Oh so true.
I'm (im)patiently waiting for their USB transport...
(After (im)patiently waiting for Buff2 ;p)
Alex
Senior Member
Location: Taichung City
Posts: 116
Finally got everything to work properly, whew!
BufII is powered by Paul Hynes Z1P5v45, Volumite by a separate LT1086 5v supply, and each channel of the Legato gets its own Golden Reference bipolar supply+transformer.
Legato is mostly stock, I switched the FW caps to BC037s, and used MKP2000 3.3uf over Muse ES. The Lundahl transformers are hidden under the Legato board. I tried the compact Wima 6.8uf caps, and they actually sounded fine. However, the bass was a bit bloated and muddy in my system, so they had to go. The MKP2000s are still running in, but they already sound better to my ears. More transparent sound, better separation - maybe it's the "tidiness" Leo talked about - and "normal" bass (probably due to lower capacitance though).
Although I like my old Buffalo alot, the BufII is obviously in a different class. I'd like to compare the BufII+Legato to much pricier Sabre 9018 DACs, such as the DAC202 and Moon 750D. Now I just need find someone who owns one of those DACs in Taiwan
Oh, almost forgot about the pic! Here ya go, and sorry again about the iPhone quality picture. I'll update a better one soon® (lol, can't help it).
Cheers,
Alex
Don McCorleone
Location: Galashiels
Posts: 14,026
I'm inthescottishmafia.
Looks good Alex. I've been looking at these,and also the Rakk dac. That gets pricy if you opt for the valve output stage though.
Senior Member
Location: Taichung City
Posts: 116
Thanks Ali! As you know, my friend is going to make me a VC-less valve pre, and I'm not sure I want that many tubes in my system. Okay, the main reason is that I probably need a new, taller case to fit the valve output stage, and I'm too lazy.
Edit: I just realized that you're talking about Rakk's active output stage, not the BufII valve output stage. Silly me!
Last edited by squeezethatbuffalo; 02-10-2010 at 18:23.
Alex
Circuit Junkie & DIY Room Forum Leader
Location: Notts UK
Posts: 1,804
Coming on nicely Alex, well doneGlad to see you got the faulty reg sorted too
Cheers,
Leo
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