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Old 13th July 2013, 08:16 PM   #1871
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So VSSA is on progress but i don't think it will be singing this weekend....One chanel is at 95% mounted but i need to purchase some little things as signal wire, and minor connectic...

Marc
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Old 13th July 2013, 09:24 PM   #1872
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Now listening Keith Jarrett's Up for It live album and I can only say, after connected back both genuine VSSA channels, it is simply better. It has that magic sparkle and liveliness no other amp has.
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Old 13th July 2013, 09:30 PM   #1873
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My monobloc test chassis. I have to build the second one...
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Old 13th July 2013, 09:38 PM   #1874
brianco is offline brianco  Ireland
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I have a similar monobloc in design! [Reason being to use short speaker cables and long interconnects. (Otherwise they have to live in a poorly ventilated cupboard!)]

Do you intend to have a ventilation slot below and above the amp. PCB?

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Old 13th July 2013, 10:15 PM   #1875
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Quote:
Originally Posted by brianco View Post
I have a similar monobloc in design! [Reason being to use short speaker cables and long interconnects. (Otherwise they have to live in a poorly ventilated cupboard!)]

Do you intend to have a ventilation slot below and above the amp. PCB?
This is just a test chassis it will remain as showned on picture. Heatsink are visually damage and shown many drill => was heatsinking TO3 devices. So it's perfect for test but not for definitv housing.

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Old 14th July 2013, 09:43 AM   #1876
Junie is offline Junie  Philippines
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Quote:
Originally Posted by Lazy Cat View Post
Hi Junie

Here's what would help you out. DC Sense Protect out connect to Connector C pin 6, 8.

Hi Andrej,

Thanks!
I will connect DC sense (L and R) in parallel to Conn. C pin 6 & 8?

Cheers,
Junie
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Old 14th July 2013, 12:08 PM   #1877
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My JC-80 is ready to feed the VSSA. Also, my VSSA modules are ready to be mounted, feed and testing. Still need to decide what to use as the power supply... A toroid that is a bit on the small side (250VA) with 4 separate 28V windings, or a bigger one (500VA) with similar 4x 28V windings. It depends also on the internal size of the case.
@LC, can you please post some details?
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Old 14th July 2013, 04:16 PM   #1878
Junie is offline Junie  Philippines
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VSSA in calibration but the T1 and T2 is really hot! help please.
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Old 14th July 2013, 07:48 PM   #1879
Junie is offline Junie  Philippines
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Ok I sorted it out, I have a bridge solder from +in to nearby resistor, my mistake obviously .

Please see below sine/square wave at 1Khz.

Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

Good night everyone, I sat on this amp the whole day and I need some sleep.
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Old 15th July 2013, 09:42 AM   #1880
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Junie
Have you tried Square 100 khz at full wave p-p with 8Ω load ?
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