Jump to content

Cavalli Audio Liquid Lightning


spritzer
 Share

Recommended Posts

Well, Currawong sent me an email stating he deleted certain posts including mine.

I told him I was very concerned headfi would favor Mr Cavallis interest over his customers.

I wonder how much Cavalli pays them on sponsorship fees.

 

The post concerning the quality of board & solder?

Link to comment
Share on other sites

 

The circuit is completely identical.  Only thing I've done is remove those bloody mosfets which should never have been there and fix the CCS.  So now the output capacitance is cut down to less than 10pf and the huge bump in distortion from the old CCS is gone. 

 

So then it's more like the circuit properly implemented?

Link to comment
Share on other sites

I found it quite odd that my post (comment on the soldering) was deleted as well.

Guess HF is all about pulling the wool over our eyes.

Who gives a shit if somebody has a grudge against Cavali Audio, if people are paying near $5000 samolians for this amp than it should represent a $5000 amp.

Link to comment
Share on other sites

I know for a fact that the liquid fire was built every bit this bad, and also not repairable,

and i'm guessing that the liquid gold is also not repairable given the way its assembled.

Another pretty chassis with crap inside.

 

by the way, very few of you will ever see this, so have a good laugh, the cavalli packaging

http://gilmore.chem.northwestern.edu/wca.jpg

Edited by kevin gilmore
Link to comment
Share on other sites

Well, Currawong sent me an email stating he deleted certain posts including mine.

I told him I was very concerned headfi would favor Mr Cavallis interest over his customers.

I wonder how much Cavalli pays them on sponsorship fees.

 

You have to consider Head-Fi as a any other commercial site now due to the various commercial interests.

It will act to protect those interests and sponsors so free open discussion is no longer possible like here.

There was a similar suppression of problems with some shitt amplifiers a while ago where known problems were deleted and members exposing the situation were banned.

Link to comment
Share on other sites

HF has always favored certain MOT's and more often then not they contribute nothing to the site. 

 

Did anybody catch that small issue with the LAu?  If set to 240V and run at 220V then it can't get out of protection mode.  With ample headroom in the transformer and a regulated PSU this should never happen... 

 

So then it's more like the circuit properly implemented?

 

That's the plan.  Same thing we did for the ESX back in the day. 

 

Mq5EIDIh.jpg

 

These are the new output resistors using part of the old CCS for mounting. 

 

CEgDxoYh.jpg

 

Given that the board will be removed a few times this was needed on the input. 

 

Qsilndeh.jpg

 

This show the new CCS setup and the amount of flux needed to get the sinks to move.  I'll clean it up once the mods are done. 

 

mpthwEvh.jpg

 

Closeup and look, color coded 1000V teflon output wires... 

Link to comment
Share on other sites

Powered it up a few hours ago with zero drama.  The offset and balance were all less than 10V off base so a quick adjustment and were are good. 

 

I'll probably have to go in again and change the current for the BJT's as they weren't designed to run this hot. 

 

As for the sound, well holy shit sticks this is different.  Now we have deep bass, full soundstage and high frequencies.  The amp isn't 100% though and it still has too much of a "character" for my liking.  The bass slams a bit too much and the top end is not as linear as it should be.  Also some slight phase related issues. 

 

Next up, fix this fucking bias supply.  Not only does it make no sense it's also just an accident waiting to happen.  In every Stax amp we have a voltage doubler off the filtered V+ which is then cut down with a divider and further filtered.  So why on earth wasn't the regulated V+ used here?  This cost a bunch more in parts just to do something stupid. 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...