Is it 200 watts or 320 watts? Lepai LP1601S Amplifier Review and Test
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- Опубликовано: 31 янв 2025
- The Lepai LP1601S is Lepai's latest amplifier and fits in the higher end of mini home amps. It sells for just under $100 USD and is stated to be a "200 watt Class D amplifier", yet the manual states the amp is capable of 160x2 at 10% THD. Class D design offers high efficiency and decent sound quality in a small package. The amp has RCA and Bluetooth capability and can drive most speakers for room-filling sound. Back to the wattage ratings, you know we are going to test and see what it really does...let's find out together!
Buy the Lepai LP1601S here: amzn.to/2yKBHLT
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See our previous test of the Lepai LP2020a+ - • Lepai LP-2020A+ Tripat...
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Full disclosure: I purchased this amp, it was not provided by the manufacturer. All of the opinions in this video are my own and the content wasn't reviewed by anyone prior to posting. Affiliate links are provided for your convenience. I receive a portion of the sales from these links, which help me bring you more unbiased content for this channel.
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I like that you test all types of amps.
Thanks 😊👍
Please benchmark tda8920 8950 and 8954
Most impressive to me is that each channel is so close, to spot-on watts equally. I'd never run it to max, so the THD would be a lot lower at reasonable listening levels.
Great video! It is so nice to see what it is actually capable of both with the supplied and an upgraded power supply. I am linking your video to mine now. Thanks for taking the time to do this video! As always, great content!
Thanks bud! I’ll link to your vid as well
I added your link to the video description as well as the pinned comment...and here as well - ruclips.net/video/lMGuFUcIoe0/видео.html
@@tarstarkusz that's just great.
I bought this about a month ago and I couldn't be more happy with the quality of both the sound and build quality. I would highly recommend to anyone who enjoys listening to music.
the included PSU is 32V @ 3A, or 96watts, so the fact that you could get close to 150watts out of it before the overcurrent limit kicks in is pretty impressive. I also expect there was some sag in it's output voltage at that power level as well. I bet if you ran at 70W/ch you'd see the brick get very hot, and probably shutdown on thermal at some point.
at 32V input to get 320Watts out you'd need 10A input.
Alright here it is. I've been waiting for this since I saw your comment on another video. Thanks Derek, time to watch.
I have the last generation of this amp(silver one) and it's made it into multiple boom box projects of mine simply by virtue of it being so versatile. I had the same issue with a small bit of black noise with the supplied power brick, but when I hooked it to a 24 v werker sealed lead acid battery, noise went away.
Thanks for the video man, these amps are a great diy bargain.
I know this is an older video. But, just wanted to say "thanks" for doing what you do. I have learned a TON from watching your videos and learning how to get the most out of my chip-amp DIY ammo can speaker builds. 😎
Thanks for watching and commenting!
In amps for sale in the EU, the binding posts are not allowed to be spaced according to the spacing required for dual banana plugs, because some European power cords with round pins use exactly the same spacing, and the profoundly efficient rule-makers in the EU government don't want people getting the two confused with each other. So even most new high-end amplifiers don't use the standard spacing.
Someone commented about this earlier. Great info, I’ll be sure to mention this in a future vid
@Popeye we aren't getting out, I we were sold a dream that no one thought British people wanted. Now they know we do really want it they are doing all they can to ensure we don't get it.
rorybz , thanks to all the dumb ass people in the world
Fantastic overview of this little amp. Really appreciate your attention to detail and on camera presence
Another stellar job! Very informative! I was gonna bet that the amp wouldn't be able to do the advert specs even @ 10% distortion. Wow..one of the first Chinese Class D amps that was worth it's salt. I know you limited distortion to only 1%, pretty darn good. I would have liked to see the test w/the high power battery @ 8 ohms. No biggie. Always enjoy seeing amps tested in real life. Thanks again!
It was also tested to clipping. Seems this amp would do best with a 35VDC, 6A power supply. May not be able to find a “brick” that large 😱
Great video .. was starting to get scared you weren't gonna take the heatsink off .. phew. Again for those interested the chip is (according to bigD) the ST TDA7498e
👌😊👍
Yeah, the PSU can output an absolute maximum (on paper) of 108w. It won't, or shouldn't, be a problem for music since you're not playing pink noise at maximum volume, and the likelihood is, the capacitors in the PSU will allow higher current/wattage bursts to handle the transients in music.
Psu is 96w and how can you measure thd with pink noise? Getting 2x76w from that with 1% thd is absurd.
Enjoying the channel! Would love to see a full test on the S.M.S.L. AD-18! It looks and sounds great, and it seems to produce all of the claimed 80 watts x2 @4 Ohms, but it would be good to see it run through its paces.
Great work man! I am setting up my own home automation, and I am in the market for some small stand-alone amps to use with a Google Chromecast and HomeAssistant. Looks like this is just the ticket! - Love your videos! KEEP IT UP!
Not a lot of people would test this with a different power supply. This is what sets you apart from the rest. Nice.
Thanks for watching and commenting!
This amp is worth buying nicely put together...superior components....your testing skills are good ...👍🏽
Thanks for watching and commenting!
Whole case can act like a heat sink. No Ventilation for the heat sink on the main chip inside the case. Priceless!
I wouldn't expect to be pushing this amp to the max for any extended period of time.
Dont even care....I want one of these for my living room speakers. Im running some el cheapo vm audio powered tower speakers and lately the amp has developed some serious left channel bias. Can barely even hear the right channel. Gonna do an amp-ectomy and see if it doesnt fix my channel imbalance issue. Thanks a ton for reviewing this thing BigD!
I like it overall 🤙
@BigDWiz Say dude, is there any way I could get you to do a measurement on the smsl sa98e for comparison?
I had one of these in my living room and it is an awesome deal for the money...
Lepai, Breeze Audio, Nobsound and Fx Audio use the same design and chips...
These little amps love 4 ohm speakers and they get LOUD...Sound quality is pretty good, mids and highs are awesome, and the bass is acceptable(yes it can slam, but it doesn't really have a great controll of the speaker when it starts playing lower than 40-35hz as you need really big capacitors(power reserves) for that)...Honestly it can easly replace 95% of the low to mid end hifi amps/receivers...
Now i use JVC-RS33(class A) which is one of the most powerfull receivers of that time and it doesn't get that loud but it has a little more dynamics( but ofc it is like 20 times bigger and it weights 12kg)
75 WPC with the included power supply is actually pretty good. It's a tiny amp that could be velcro mounted to the back of one of a book shelf speaker in the pair. I have the Lepai LP-168HA 2.1 amp that I've been using on my pc for over 2 years now. It's held up very well and I'm planning on using this brand of amp for a couple "boom box" setups I'm going to build soon.
Cool man, please share your projects so we can see
I'd be interested to see how that amp performs long term with the main heatsink mounted _inside_ the case with no ventilation or coupling to the outer aluminium case. Don't think the heastsink is gonna do much the way they have it mounted.
Most of these amps I've seen that carry an external power transformer/rectifier package connection have cheaped out on the included ones. By the time you add the cost of a quality one in to reach the advertised power ratings, you reach the same cost as typical big-name amps with internal power guts.
Still lots of people buying this type of amp for various uses. Would be interested in seeing some tests of perhaps some other similar items. Lots of RUclips reviews of this type of product with no real value, would be great to see actual real tests vs the hey look it makes noise.
These amps are almost always limited by the voltage and current available from the power supply. Also, power for these commodity chips is normally rated at 10% THD. Class-D chips tend to have very low THD up to a "knee" where the onset of clipping occurs, then they rise rapidly, but the benefit of this is that the 1% or 0.1% THD power output is not very much less than the rated power rating. Also, your speakers are usually generating much more THD than the amplifier, even at the amplifier's full rated power.
Thank you BigD for testing this. This is going in my next boom box build. Crazy efficient, good power and Bluetooth? Boo yah!
I agree! Just wish it had preamp outs, otherwise almost perfect
When do those Nike Big D Force One’s drop?
What's in da boxxxxx? 😱
Always top notch videos BigD!
Thanks bud 👌
Always click fast over when I get a Notification from bid d wiz. Fo sho
Anthony Stinnett 😂 same
10%THD = not for anyone who actually cares about sound quality.
The distortion is much less (> 1%) at lower levels so it should sound decent.
Raay Communications lol my onkyo amp from 95’ is 80W at 8Ω but has 0.008% THD
@@gerasimger15 yes but this is a cheap amp that pushes alot of watts, it takes shortcuts to get more watts, even if that means 10%THD... Plus, you have to take other things into consideration with amplifiers. A amps sound quality is not JUST determined by its THD
@@cameronbrown8288 I also have a power amplifier (2000 watt), but it has a THD of
@Stimpy&Ren Plenty of people do enjoy the sound of an amplifier turned up one notch too high. ;)
If you have a way to test thermals you should try OEM Vs. High Quality non-conductive Thermal Paste on the Amplifier Chip to see if any real gains could be made in the thermal department to more effectively dissipate heat into the Heat Sink since it is passively cooled.
I can tell you one thing about these class T amps. I have bought and used maybe 10 in my family of different types and brands including a yamaha based board and they don't seem to last very long. All but one where chinese diy boards but one was an expensive designer amp. The big tripath chips have been the best as opposed to the surface mount amps. They work very well with vintage speakers designed for tubes.
The question is why do you expect chinese crap to last long in the first place.
Awesome video looking foward to the next one!!
Thanks for watching and commenting 🤙
Yeah man can you do more home audio stuff??
Lack of current is what I first suspected. Over current protection kicked in on the supplied power supply. The pop you hear seems to be common with these small blue tooth capable amplifiers. It's a delayed muting function that come out of the module. Sometimes you can smooth out the pop by adding capacitors on the mute pin of the amp IC or even just cut the trace and disable the auto mute function completely.
Lepai should’ve worked out the BT issue IMO
Agreed! I mean, I know they like to keep manufacturing costs to an absolute minimum, but if they just spent a few fractions of a penny more, they'd have a so much better performing piece of equipment. It's OK though...fixing silly glitches like that puts $$$ in my pocket.
Big D Wiz
You know I’m a frequent viewer and I truly like your channel & video’s although I truly doubt this thing does anywhere near 200-300 Watts. Also,
Yes I’m responding before finishing the video because I will be truly dumbfounded if this tiny amp makes almost double the power of my Denon 5803 that is 10x the size of this and it makes 170 watts per channel. Also have you ever heard of the pioneer 1980 ? It is a silver face receiver from late 1970’s and it was like the king of power receivers with 270 watts per channel at less than 0.03 distortion.
So I guess you already get where I’m going with this, why would these home receivers that cost $5000+ that are considered flagship put out less power than this tiny “pocket” sized amp ???
Maybe you know more about this than I do.
Great video btw 👍
I have the same click/knock upon pausing when my Android phone hooked on my semi truck. Most audible when radio is at higher volume. This is most likely caused by the BT radio transceiver going between drive and suspend modes.
Thank you I am a new viewer of your show really love it wasn’t a believer in the small ham I’m going to try it I hope I like it even if I don’t it’s pretty cheap thank you for your video
Looks like it could be TDA7498e chip, they both deliver similar power with same voltage
I believe you are correct 👍
Nice lil power house, right there. Great video BigD
Wow!! Gotta get me one! Great Vid man!! 👍
Thanks for watching and commenting
Chip looks like something similar to a TDA8920. Not much of a surprise to see it there. They seem to be the bog standard chip in a lot of newer class-D amps.
Would’ve loved to see what the cap values are. It could be 32v because of the caps.
32v caps doesn't mean that they stop charging at 32v. They will take as much voltage as you give them, but at some point, they will explode xD.
@@LeitoAE Ha! Right, exploding caps aren't fun. It would probably be 36V caps for 32V supply source. For 36V input, I would expect to see 40V caps.
This depends on the impedance of the speaker. Please explain to viewers what impedance is. Impedance is the opposition to alternating current. That is different to resistance, though both are measured in ohms
Wow that's not bad for a tiny little thing. 😮 How did you like the sound, BigD? Great video bro!! 👌
I have old ears and this little amp sounds good and surprisingly “full” for its little size and Class D topology
Supplied power supply provides lower power which might extend it's life .
Running it on higher voltage might very likely shorten it's life as it will run hotter .
Also why not add some Vent holes simply remove the covers and drill a series of holes in the sides and top to allow air flow.
Add some fine mesh inside to keep dust out . ( even if your not increasing the voltage )
In a small space this amp is plenty loud Dorm rooms for example you will not likely max it out .
A musician friend uses one and finds it plenty for his small space.
Do the Texas Instruments TPA3116 chips work the same way? I purchased a 100 x 2 Bluetooth 4.2 mini amp with dual TPA3116 chips. Currently, I am running 24v input (I am using a DC-to-DC step up booster from 12v). Works excellent, sounds excellent. There is a guy saying I can run it all the up to 36v voltage input to the amp. What do you think? Thanks...great video!
Hi Chris, yes the TPA3116 are great little amp boards. I’ve tested a few. Let me link you to my Chinese mini amp invasion playlist 👈😜
Chinese Mini Amp Invasion #2 - TPA3116 and more ruclips.net/video/B5jlwSDASvo/видео.html
internally it looks just like the FX-AUDIO FX1602s (FX1002A + bluetooth) these use ST TDA7498E chips so figure 80 WPC into 4 ohms at under 0.1% THD when fed with 36VDC, gain is (usually) switchable internally from 23.6/29.6/33.1/35.6 dB. A 36v 5A supply would be ideal, a good rule of thumb is never go past 50% of a Class D's claimed output if you care about fidelity ;)
Crazy efficient
I have the shiniest meat bicycle
dead
Great video. Would love to see how the NAD C388 performs on the dyno :)
What a cool and interesting and useful test. Thank you for doing this and sharing.
Thanks for watching and commenting!
I have a similar sized amp from fosi audio that also includes a 100 watt subwoofer channel on top of the 2x50 watt stereo channels. It drives 2 dayton audio bookshelf speakers and a ct sounds bio 1.0 10 inch subwoofer
I've been watching your amp dyno's and LOVING it. I'm building a portable Bluetooth boombox with a 12v battery inside with a step-up converter and ratchet strapping that thing to the back seat of my Harley. Looking to use an external BT unit (probably Boss) and 2x6.5" tops, 2x6.5" downfiring subs. Can any of these little bitty amps do a decent job in that environment?
Are the speaker Dayton audio? Great video Yea boi!!!
Speakers are Monoprice
I don't know why i got excited when it did over 100wpch, I have one of these, mine is a shure and it's sitting in a storage drawer lol, but still kinda cool to see
All your content is awesome! Those prenunciations 😂.
It may max power. RMS power may 30~50W usually used as amp power.
The amp dyno only shows rms values.
Great thing, especially for house heating. From 96W power supply it delivers 151W to load. Fantastic.
Underrated power supply!
I think wrong measurements. Take scope, 4 or 8 OHM resistor and take a look then. If you will be fast enough to do it before power supply jack will melt.
Your video is good greetings from L4L BMB from Indonesia
1% THD at 1kHz is unspeakable
32V x 3A = 96W x 80% - 85% eff ~ 80W
if all you can give is $100 get a second hand amp.
All amps are tested to 1% distortion.
So you could say the same about every single amp he tests.
The heat sink in one of the important part of operating an amp, and im glad coz aside from the heat sink inside the bottom of the amp serves as its heat sink to. Coz at first im wondering where the heat will exit coz there's no ventilation. If i own one i would upgrade a little like putting a hole or something for the heat to exit from its cabinet.
that is cool as heck! soundtown plate amp says 700rms. it pounds with sub. but id really like to know fact,,,,, love the channel and the big dummy, lmafo!!
Thanks for watching and commenting!
The clicking sound on the volume/gain attenuator is detents, some potentiometers have detents for a "precise" setting but in volume/gain it's really not needed.
Exactly. Some car audio head units back in the 90’s were this way also. Made no sense to me
When I hear that dyno wind up ❤❤❤
Tell me about it...gives me goose bumps each time 😊
Looks like the speaker output terminals could have been drilled on the back panel in a parallelogram configuration instead of a rectangular one and dual plugs could have been made to work.
BigD, is there any way you can get a hold of and try some tube amplifiers on this dyno and make a video? I see a lot of those DIY kits on eBay, and I would like to run tube amps on my (soon to be) sound system in my '84 Holiday Rambler trailer I will be living in. I've never listened to them, but I have heard tube amplifiers have a lot of headroom, are very robust quality wise, but are a little more pricey compared to their solid state/transistor counterparts. Because of this, I believe seeing them tested here would help in choosing an amplifier.
Those are cool for sure! Check my buddy Vintage Stereo Buff on RUclips, he is getting one of those to test
32V x 3A of the power supply should only be capable of 96W total, so it's interesting to see that it does 75Wx2.
LEE PAY :) Ok, so that is a neat little desktop amp. I'd like to see it run full tilt for a while and see how hot it gets.
Hey, D, I'm not sure about this:
You used really thick wires on your banana plugs and connected them via the sides, but when you use small wires, do you put them through the back opening like you probably should? It's cleaner and gives you more room. :)
Some banana plugs are designed for connecting wires on the side, other's through the back. I prefer the side so you can fit larger gauge wire, but yeah, with this amp, getting the other banana plugs and wiring through the back would be preferable! Nice catch!!
My Marantz stereo amp is rated 80 watts /channel at .08% THD driven from 20-20,000 Hz with both channels driven. By your measuring methods my amp should be around 3000 watts.
I’m afraid the power output difference between 0.08% and 1% is not as much as you’d think. Many magazines (home and car) test amplifier power to clipping...more than 1%, but again, not a big difference
@@wal No your specs are 10%, and no reliable electronics use a 10% THD.
I am in the market for one of these super appreciate the info
Hi! Could you test someday the SMSL SA 98E? it looks veeeery similar to this Lepai. I had one 98E and im wondering how many watts per channel it can make, but i dont have any equipment to test this out :(
I really would love to see some comparisons. I am looking to pick up an SA 98E.
would you ever consider doing a standardized sound quality test, possibly using an oscilloscope to compare the signal in vs signal out. using pure sine wave signals, comparing some high end gear vs low end to see the difference. i would consider sending a few pieces from my zapco stash (z600 z100 ag1000). also if you were using a scope you could compare signals in and out of some popular head units or dsp units. look for digital noise or noise floor, hiss etc.
That is a cool suggestion 🤙
BIG D, That's a nice little amp but it would have been even better if it would have put up its rated power on the Dyno machine don't you think???
Yeah, and less confusion about the ratings too 🤔
Please explain how you measure the watts, peak power does not count, watts are in RMS. To get true watts use an external wattmeter, also tell us the current that is in the speaker wires powering a 8 ohm speaker.
Up the Amps, Rough Standard 12v 10a , = 24v 5a , so by upping the volts 32-36w 2.5a - 3a you divide the amp's to = Same Power
A PSU thats 24v 5 Amp will get you the 100 watts per Channel making it a 200w
I was wondering when you would test another one of these. 😊
I still have a stack of the amp boards I need to test as well
You should do a review of this amp now,after 3 years if they still kicking that is.
Fo sho
@@wal I watch all your stuff. I second a comment higher up where a guy said he likes the home audio stuff. I watch the car amp videos for fun but have no use for it. Honestly, all your content is great including setup vids and your old stuff too.
BigDWiz did you by chance ever bridge this thing? I was curious to know if it would react well to bridging at 8 ohms. I realize this is an old video, but I'm thinking about making a lil bluetooth speaker and figured you might know a bit about it
Buy the Lepai LP1601S here: amzn.to/2yKBHLT
My favorite Precision Screwdriver Kit - amzn.to/2kAQhQZ
Banana Plugs - Open Screw Type - amzn.to/2yJLUbh
1200 watt voltage Booster - amzn.to/2Byvvw4
Keyko 12v 12ah batteries - amzn.to/2yK3Brh
See a great review on this amp by 123Toid here: ruclips.net/video/lMGuFUcIoe0/видео.html
Full disclosure: I purchased this amp, it was not provided by the manufacturer. All of the opinions in this video are my own and the content wasn't reviewed by anyone prior to posting. Affiliate links are provided for your convenience. I receive a portion of the sales from these links, which help me bring you more unbiased content for this channel.
Impressive power to say the least from such a small chip.
I agree sir, quite an amazing feat!!
Awesome vids. Can you review the 1Mii08?
That pop is do to the circuit system stoping noise feed back or hum for the Bluetooth speaker
Not available in Australia, typical, but on amazon they can ship here at a decent price, awesome
HDXFH Dont use Amazon, they are behind the big push of ushering in communism in America.
Don Rutter same withHarvey Norman in Australia, A large Electronic retailer with a CEO who wants us all working 2 dollar a day his stores sell overpriced china crap too
Would it be good to run 4 of these as 7 channel surround and .1 go to powered sub. Would to audio be better than all in one 7.1 receiver?
Is it possible that it pops because of it switching the speakers into a standby mode
chip looks like some form of tda from st micro, maybe a tda7498e. the paired pins down one side are a good indicator . little beast
great review. can you tell me please the chip number? i want the chip datasheet
Pretty sure it’s TDA7498e, but not 100% certain
thanks!
Awesome, was also quite interested :D
Hi ! thank you very much for the very interesting demo as always. Personally i would not overestimate the BT issues ... to get decent sound a dedicated receiver can be the best solution. And if wifi is available a Chromecast audio will be on another planete. I would how this amp would sound with a nice Meanwell smps (great quality usually) Moreover i think that not only voltage is important but also the ampere delivered by the power supply. That is very evident also for normal amps. Replacing a small mains transformer with a higher VA one with same voltage the sound comes alive more. At least this is my experience. I think that the power solution adopted can have a decisive impact on sound quality
In the end the amp is like a tap ... if there is no enough "pressure" upstream the flow to the speakers will be scarce Kind regards, gino
Hello big D. I just purchased this amp because your video. It's not a bad product but for sure it needs more of a power supply. I've been looking online for a 36v 10amp power supply and to no avail, I cant seem to find something that will look nice in my setup. I cant exactly hide everything , so I was looking for a similar power supply to the one that came with the amp but I have no luck. I'm wondering if you could find one that is for sale ? Or maybe make a video of making a power supply 36v with 10amps or more ? I have this amp on some dayton t652 and a 12 dayton powered sub. Sounds good but at 3/4 volume or higher it shuts off. Frustrated!
Thanks for your time , hope you comment.
You may need to use a 12v battery and a voltage booster as it’s not going to be easy or cheap to find a 360 watt 36 volt power supply. See my Chinese mini amp invasion video for the voltage booster
32V * 3A = 96W maximum power from the power supply. That's 43W / channel @ 100% efficiency (which I'm not sure even Special Chinesium Amplifiers can get to).
Luckily that poor little power supply has overload protection lol
PMPO sounds more feasible, otherwise the PSU will be out the window in no time. Certainly not a party time amp.
Big D how was the music quality from this little guy most guys use these for vinyl players with a dedicated speakers would it be worth the money quality wise ?? Looks like a great like well built amp
I don’t like to comment too much on SQ as it is subjective, but it sounds good to my ears
Dood just use banana connectors and stuff them into the connectors instead of side loading.
Also a lot of these small amps are tripath (class T) amps... the company that makes the transistors I hear had some issues and the components are limited and other companies haven’t made them either due to materials/patents... not sure but I know there was quite a scare about future availability of these gems.
I don’t mind if they all go true class-d but the tripath design is pretty damn cool. Hope they fixed supply.
I'm amazed, for the price, it looks quite well built! It even has Japanese and German capacitors, Elna, Nippon Chemi-Con, Panasonic and WIMA. There is a lot of excess flux though, I guess it's that "no clean" flux by the looks of it since it is crusty like marks from powder sprinkled over the board.
I HATE black PCBs though (I swear I'm not racist LOL), it makes it difficult to see the PCB traces. (I have good eyes but I can completely understand how someone older than me with word out eyes could have trouble working on boards like that.)
This isn't only an amp, it's a power generator : you put in 96W (32V x 3A) and get 200W (or even 320W ?) at the output. I will buy some of these to power my house :-)
Have you tested the very popular Crown XLS series amps? Would be very interested to see the results.
Just got myself a used xls1002 for 150€. Another league honestly... Its pro stuff that just kills. But its bigger no blietooth... Pro stuff
so power supply it came with did not provide proper voltage? would an external more constant supply burn the unit?
Does this have any noticeable noise with no signal applied? With the bluetooth capability this looks really tempting...
Why you don't try Dynamic rms power test on this amp? I think that on class D amp is the most truthful method.
Have you this amp yet? Can you try an answer me? Thanks
Damn at full tilt the amperage is extremely acceptable. I see this being very usable at home and also for a portable Bluetooth speaker system with rechargeable lipo packs. Nice! I may also use one to replace a burnt up plate amp on an old school Infinity powered sub. Do you know if it is bridgable?
Not bridgeable AFAIK