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  1. I've been the proud owner of a Cavalli Audio Liquid Lightning for over a month now. Now as most will know, this hasn't been exactly a dream of mine but the owner practically begged me to take it and the price was low enough to waste money on it. The normal market price on the Mk1 model has dropped well below half of retail (2400$) at this point and this one was even cheaper. What finally made me buy it is the very unhealthy discussion about this piece and the clear attempts of the manufacturer to kill any negative discussion about it. My views will be questioned because of my history with Cavalli but that's exactly what should be done to any impression that is read. Nothing should be taken as gospel but I've put my money where my mouth is and that's not something you can say about the people who rave about the LL. The main goal of this thread though will be to document just how badly built and designed this amp is but also to document ways of improving is and indeed, making it safe for the user. The circuit has been fully drawn up and analyzed and it will be posted in full later on. Any issues of copyright are blown aside as this is very similar to the Exstata which in it self was a Stax design lifted off the web. Cavalli has admitted to that in the past and the "improvements" make it even more similar to the SRM-323/727. We'll get to that later though when I start the ordeal of making something useful out of this box. Perhaps we should start with some impressions of the sound. First impressions were just how small it is and very light. It's about double the size of the SRM-727/007t but doesn't weigh all that much more. The casework is flimsy but well made. Some plainly odd bits such as the volume knob is painted, not powder coated as one would expect and there is no primer used. Very odd... The switch on the front is neat but the circuit driving it could use a lot of work. As for the sound, well the output capacitance of this amp is about 300pf so it sounds very odd. It's utterly unusable with the SR-003 as they are just 44pf with the cable. Same with the SR-007 and SR-Omega, way, way too much bass, no life at all and the treble is just gone. The midrange which makes these so special has no depth, no height so voices just sit flat on the front of your face. Let's break this down a bit: The bass is by far the worst part about this amp. There is no sub bass output and the rest is both anemic and overblown at the same time. The bass has no power, no heft until it hits a certain frequency range and then it turns into a overblown mess that consumes everything. This is worthy of cheap closed dynamics and is very annoying. The SR-007 when driven well rivals any transducer when it comes to bass impact but here it is just a weak muddling mess. The midrange doesn't have any presence or bite to it, it just sits there. The soundstage has no depth and is pretty much stuck directly in front of the face. Remember those bell graphs... that's how it sounds. Some output low down on each side but almost everything in the center. The HE90/Stax hybrid I have rivals even the Sigma's when it comes to casting a vast soundstage but here it is just dead. The lovely out of head experience of the SR-Omega... completely gone. Voices are separate and not really joined in with the rest of the stage, almost like a bubble directly in front of the eyes. Truly weird and it's there no matter the recording. The top end is highly rolled off, there are no shimmering cymbals here or guitars piercing as they are driven into overload. Nope, just lifeless and inoffensive. I can see people liking the SR-009 with this but it's like taking a sledgehammer to the sound. Instead of gently molding the top end it's just cut off entirely. Now this is the Liquid Lightning Mk1 I have here so how different is it to the Mk2? Well until I posted my findings it was supposed to be identical on the inside, all the same parts used and just some slight tweaking plus the new case. Now suddenly it is massively different and a gigantic improvement. Nothing backs this up, no pictures, no clearly defined part changes and only the testimony of people to who I wouldn't take at their word. Until something comes along that actually backs up these stories of major improvements then I have to assume that they are exactly the same. Same output devices which have a combined output capacitance of 270pf per transducer and the same fucked CCS that kills the top end and fucks up the phasing on the low end. Finally the first steps in improving this pile of fail. I naturally needed to change it to 230V so I was greeted by this: That is not a very professional job to be honest. Two wires are the primary windings of the small standby transformer and the two green wires are the pass through to the large HV transformer. Here is how I did it. Fun fact, there is actually no locknut on that grounding post. There are two lock washers but they are both right next to the eyelet, there is none on the nut which secures the whole assembly. You can see where this is going, fucking amateur hour... To cap this off I decided the blue knob had to go. This is what I had "in stock": Much better and since that is a Headamp knob I hoped that the amp would sound a bit better. It didn't...
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