Legato 3 - Look ma! No caps! - Page 7

BrianDonegan · 26th March 2011, 04:27 PM

There will be two versions of the kit: with and without the optional SE buffers. Pricing is not yet final, but will be in a few days. The buffers are not cheap, thus the two versions. The kit with pre-mounted buffers will be roughly $25 more.

natzev_i · 26th March 2011, 04:29 PM

When will they be available for order, please?

BrianDonegan · 26th March 2011, 04:32 PM

Quote:

Originally Posted by natzev_i

When will they be available for order, please?

Once I get a substantial number of kits ready, and have the pricing finalized. I can probably get the pricing done tonight if I can steal away a little time.

natzev_i · 26th March 2011, 04:38 PM

Thanks, Brian - I'll keep looking at your website.
Please, pardon my ignorance but is the SE buffered version suitable for driving headphones only or both headphones and pre/power amps, as well?

Russ White · 26th March 2011, 04:41 PM

Quote:

Originally Posted by natzev_i

Thanks, Brian - I'll keep looking at your website.
Please, pardon my ignorance but is the SE buffered version suitable for driving headphones only or both headphones and pre/power amps, as well?

Absolutely.

natzev_i · 26th March 2011, 04:47 PM

Quote:

Originally Posted by Russ White

Absolutely.

I suppose this means both amp and headphones which is great - thanks!

Russ White · 05:00 PM

Quote:

Originally Posted by natzev_i

I suppose this means both amp and headphones which is great - thanks!

Yes .

At the SE outputs you have 250ma of SE output to use as you see fit.

Using the balanced outputs without caps is not going to work for everyone. I will cover this in the manual, but if you balanced amp has diode protection at the inputs, and/or cannot handle common mode DC while powered off or on, you should definitely use caps. This only applies to the balanced outputs, and those caps will not be in the path to the BAL/SE stage. If you do decide you need caps they will be external to the I/V stage, and can be fairly low value film types depending on the impedance of the next stage of course.

Those going into truly differential transformers with no tap to GND on the primary side will not need caps.

This thing is absolutely amazing into headphone. I have been listening to all of my cans, all of them from electrostatic to 600ohms sound awesome. Plenty of power to spare. Incredibly rich and realistic bass and extended but not harsh high end.

Cheers!
Russ

acidbrain · 26th March 2011, 04:56 PM

- will the kits be shipped out with the Supertex TP0604 ?
- I have the Ventus to adjust dc to 0V and later also the Legato 3 to adjust to 0V.
Can I use both to adjust or is there a favourite, better to use one and set the other with fixed resistors?

Russ White · 26th March 2011, 04:59 PM

1) yes.
2) Shouldn't make much difference either way. Experiment and see which you like best.

avr300 · 26th March 2011, 05:17 PM

What is HP_out ?

26th March 2011, 04:27 PM	#61
BrianDonegan diyAudio Member Join Date: Dec 2004 Location: Rock Ridge	There will be two versions of the kit: with and without the optional SE buffers. Pricing is not yet final, but will be in a few days. The buffers are not cheap, thus the two versions. The kit with pre-mounted buffers will be roughly $25 more. __________________ Twisted Pear Audio

26th March 2011, 04:59 PM	#69
Russ White diyAudio Member Join Date: Jan 2005 Location: Nashville, TN, USA	1) yes. 2) Shouldn't make much difference either way. Experiment and see which you like best. __________________ Less pulp more juice Twisted Pear Audio.

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26th March 2011, 04:29 PM	#62
natzev_i diyAudio Member Join Date: Oct 2006	When will they be available for order, please?

26th March 2011, 04:38 PM	#64
natzev_i diyAudio Member Join Date: Oct 2006	Thanks, Brian - I'll keep looking at your website. Please, pardon my ignorance but is the SE buffered version suitable for driving headphones only or both headphones and pre/power amps, as well?

26th March 2011, 04:56 PM	#68
acidbrain diyAudio Member Join Date: May 2008	- will the kits be shipped out with the Supertex TP0604 ? - I have the Ventus to adjust dc to 0V and later also the Legato 3 to adjust to 0V. Can I use both to adjust or is there a favourite, better to use one and set the other with fixed resistors?