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AudioBob		#1 Posted : Sunday, January 30, 2011 3:28:54 PM(UTC)
Rank: Member Groups: Member Joined: 1/15/2011(UTC) Posts: 2 Location: Italy		Hi all, I'm building my personal "hi-fy, hi grade" version with TPA. The core is based on buffalo II, legato 2, ventus. Ventus are driven by legato bal out for my Grado (32 ohm). I'm looking for a power stage to connect at legato unbal out. My target is to listen jazz or classic music with B&W 805. Any suggestions?? Best Roberto Edited by user Sunday, January 30, 2011 3:41:14 PM(UTC)  | Reason: Not specified AudioBob attached the following image(s): TPA 1.jpg (28kb) downloaded 234 time(s). You cannot view/download attachments. Try to login or register.
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Brian Donegan		#2 Posted : Sunday, January 30, 2011 4:35:09 PM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 2,868 Location: Massachusetts, USA Thanks: 2 times Was thanked: 141 time(s) in 134 post(s)		Branch the balanced out from the Legato to feed the Ventus and a pair of Sympaticos?
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Russ White		#3 Posted : Sunday, January 30, 2011 8:12:29 PM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		Brian Donegan wrote: Branch the balanced out from the Legato to feed the Ventus and a pair of Sympaticos? That is a superb suggestion.
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AudioBob		#4 Posted : Monday, January 31, 2011 12:18:25 PM(UTC)
Rank: Member Groups: Member Joined: 1/15/2011(UTC) Posts: 2 Location: Italy		Brian, two questions. I'm brush out some rust from my ee degree. Putting ventus and sympatico in parallel. Ventus is about 2-5K inp impedance, sympatico about 100K. Surely legato can drive them but what about interactions (if any)? I've an order shipping next Feb 27th. How can I add a sympatico kit? Best Roberto
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Russ White		#5 Posted : Monday, January 31, 2011 12:59:52 PM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		No problems at all, in fact the only effect will be very slightly reduced output. Not even worth mentioning really.
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NicMac		#6 Posted : Monday, January 31, 2011 1:13:08 PM(UTC)
Rank: Advanced Member Groups: Member Joined: 2/10/2009(UTC) Posts: 299 Location: Italy		Russ White wrote: Brian Donegan wrote: Branch the balanced out from the Legato to feed the Ventus and a pair of Sympaticos? That is a superb suggestion. I'm not sure I understand this branching, but I very interested as I have all the modules to try it! Do you mean using 4 pcs of Ventus as line-stages between the bal out of Legato and the bal in of Sympatico?
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Russ White		#7 Posted : Monday, January 31, 2011 1:45:31 PM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		No I think he means using 1 legato and 2 Ventus(for headphones) along with a Sympatico. The Sympatico inputs would be wired in parallel with the Ventus inputs.
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NicMac		#8 Posted : Monday, January 31, 2011 2:45:25 PM(UTC)
Rank: Advanced Member Groups: Member Joined: 2/10/2009(UTC) Posts: 299 Location: Italy		Ok. So basically using the Ventus connected as the onboard BAL/SE stage. Could both be powered, connected and used contemporarily yielding (per channel) one balanced an 2 x SE outputs? Or is this to much for the poor Legato. The modules stacks nicely - just a shame that one has to take apart the pyramid to access one of the Ventus trimpots :-) NicMac attached the following image(s): TheTpaPyramid.jpg (31kb) downloaded 156 time(s). You cannot view/download attachments. Try to login or register.
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Russ White		#9 Posted : Monday, January 31, 2011 6:42:39 PM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		Looks like an green Aztec temple. :) Yes you have the right idea, and no, it will be no problem to use the legato like this. It will work quite well actually.
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avr300		#10 Posted : Tuesday, February 1, 2011 1:18:34 PM(UTC)
Rank: Member Groups: Member Joined: 6/17/2008(UTC) Posts: 921 Thanks: 1 times Was thanked: 70 time(s) in 69 post(s)		That's an evil stack.
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NicMac		#11 Posted : Tuesday, February 1, 2011 1:31:02 PM(UTC)
Rank: Advanced Member Groups: Member Joined: 2/10/2009(UTC) Posts: 299 Location: Italy		and only the left channel........
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