The Liquid Fire is still my favorite amp that I own. I will never sell it. The sound is just so involving and resolving when paired with planars like Audeze along with the right sonic style of source DAC (Schiit multibit, Berkeley Audio, and similar styles of DACs). The sound in a setup like...

It shouldn't be doing that. That makes me suspicious that you've either got a bad power supply or that your power from the wall outlet is very bad (either very bad for the circuit the amp is plugged in to or very bad for the whole house). How much other stuff do you have plugged in to the same...

The Liquid Gold and Liquid Platinum do have mentoring for DC offset and ground. A bad cable or a headphone with bad wiring could trigger those amp protections. So yeah, it could be the cable or the headphones causing the amp to fault and go into protection. Don't blame the amp quite yet. Or it...

If you want even better pinpoint imaging try inverting the absolute polarity. The CTH inverts polarity on both channels. So use a media player or DAC that has the ability to invert absolute polarity (aka absolute phase) and you'll be back to proper absolute polarity. Correct absolute polarity...

I've been using JAN GE 5670W tubes in my Liquid Platinum. I like their sound and love their price. Very high on the bang for the buck scale along with good sound quality. I consider the sound to be generally similar to the Gold Lion new production 6922 tubes. The only negative aspect with the...

I don't view it as amp hoarding. I view it as having a backup of a favorite amp just in case one of them has a failure. Early on with Monoprice it became clear that they don't have a service center and techs that can actually repair these amps. All repairs were done by swapping an amp from...

Not what I wanted to see. But this is the reason why I have three Liquid Platinum amps. One for use with 6922 tubes. One I plan to use with an adapter for 12AU7 tubes. And the third as a backup for if/when one of the other two stop working. I also have two Liquid Gold X amps. Because I've...

The Liquid Platinum does very good layering and depth for a hybrid. With a good DAC and good headphones it will give you a bubble of sound around your head with the front of the headstage out in front of your forehead. For example, with the HD600/HD650 and a the right DAC and a good suitable...

I have two of the AC Infinity 140mm USB fans. One I use to cool my external USB hard drives while doing backups (it's very effective for this use). The other I am using on a mini PC for additional cooling. I haven't used it with any audio gear yet cause none of the gear really needs additional...

How are you measuring the temperature? The amp does get warm. But its passive cooling does very well. I don't have an infrared or FLIR to take its temperature. So I don't know how hot it actually gets. My local library has infrared thermometers and even a FLIR for checkout. I should check them...

The built-in DAC performs like and sounds like a basic mid-level AKM based DAC. No better, no worse than what you would expect from a mid-level AKM based DAC. If you like the sound of typical AKM based DACs then you'll like the built-in DAC. If you find the AKM based DACs to be somewhat lacking...

The power supply did change. The first LP I got when it was first released in 2018 used a physically smaller power brick with a two prong IEC C7 style connector. The later LP that I got in 2020 has a physically larger power brick with a three prong IEC C13 style connector. The amp I got in...

Fortunately Amazon will absolutely refund you. It just means that your $400-something is tied up for a week or two (or three if you want to wait that long and hope Amazon finds it). If you're able to float that $400-something for two weeks or so you could also order the open box LP from...

That's not good. Is it lost in shipping? Monoprice does have an open box LP for $419. https://www.monoprice.com/product?p_id=36735 Open box can be a gamble. You don't know what the person who returned it did with the amp. And I don't know what kind of warranty or guarantee Monoprice has for...

The Cyberpower PFC UPS is a good enough sine wave for audio gear. What won't work are UPSs that do stepped waves or square waves as a pseudo sine wave. The Cyberpower PFC UPSs are line interactive style. Meaning they only switch over to the pure sine wave when on battery power when the power...

Just because a tube glows doesn't mean it is good or hasn't failed so bad it would kill the amp. The only way to know if the tubes are still good would be to test them in a tube tester. Hopefully you can get a replacement for an acceptable price. The current third-party price on Amazon isn't...

Likely a fluke. There have been a few people mentioning early failures of the amp. But not regular thing and would seem to be very rare. I bought a LP back when it was first released. It is now 5 1/2 years old. Used pretty much every day. It is still going strong. I've used it with both the...

I'm using the PulseTubeStore socket savers that I ordered from India and also added a pair of tubes to that order that PulseTubeStore stocked but TubeMonger didn't. Easy transaction. Got exactly what was ordered. No problems. All good quality. Shipped FedEx with tracking and well packed for the...

I hope this is for real and Monoprice has new production stock and will keep the Liquid Platinum in stock. A few weeks ago they declared the Liquid Platinum amp as discontinued rather than just out of stock. That has me worried about what's going on. What kind of games is Monoprice playing with...

I've only tried the stock EH 2622 tube and a new production Genelex Gold Lion 6922 tube with this amp. Both were quiet. Didn't notice excess hiss. Are the tubes you're trying quiet in other amps? Are you giving the tubes enough time to warm up before passing judgement? Some 6922 and compatible...

You're looking at this the wrong way. You should be looking to get to hear better gear that makes the iFi Diablo sound average. Hearing a variety of that better gear is the style and level of sound quality that may get you to hear that amps do have sound quality differences, and can in fact have...

It's not about having exceptional hearing. It's about allowing your brain to get acclimated to good audio sound and get used to that. The brain learns what good audio sound is and adapts to expect that style of sound when exposed to high quality audio for long enough. You don't need exceptional...

There will be more consistency about high/low gain if you group the impressions into those with experience listening to and evaluating higher quality amps and gear and those who only listen to more budget amps and gear. The Piety has a more obvious sonic presentation difference between high...

I didn't know the M1570 had a non-standard XLR pinout. That's annoying. Why would they do that?

I'm not an expert on the electronics tech side of things. I'm not able to troubleshoot why the amp would have gone into protection mode (or fried itself) in the way you described. I don't know if a bad tube or damaged tube would have caused that behavior. I have seen new Electro Harmonix tubes...