--------- Test Bench Equipment ------- SMD / D'Amore Engineering Amp Dyno: goo.gl/sJTcf7 XS Power D1400 Batteries - amzn.to/2BPFCKW XS Power PSC60 Charger - amzn.to/2CHGcfs Fluke 1000A AC/DC Clamp Meter: amzn.to/2Rw5WDA Handheld Dyno: amzn.to/2u2EgKV My Favorite Screwdriver Kit: amzn.to/2x0VzcE DISCLAIMER: This video and description contains affiliate links, which means that if you purchase from one of the product links, I may receive a small commission. As an Amazon Associate I earn from qualifying purchases
Holy blast from the past! I used to run one of these powering two Aura 1808's in the back of a Stratus back in the early 00's. Local dB Drag comp clocked it at 139.6 back then, so it wasn't too bad for what little was apparently going into them. It was just a dumb, but fun setup. I eventually shifted gears to more outdoor adventures, so the whole system eventually made it's way into more dedicated hands.
I remember a guy years ago with those Auras who was a big presence on the old car audio forums. Had them in like an infinite baffle style mount. Always thought that looked like a cool set up.
@@fattytca1 yeah those were pretty cool. been thinking of buying some of the neo radials and doing something with them. currently fixing some broke 3hp neos.
Totally forgot about the second channel big D! Thanks for posting this retro footage. There's a reason tripath topology faded away although there are a few manufacturers that still sell products with similar circuity. As far as I know they're all lumped together as class D these days. In it's time though it was a pretty radical departure from the industry standard A/B and the relatively crude D.
It's cool seeing how you recorded the videos then versus how you do now I have a US amps Bass Mekanik PT-1100 .. I've had it for some time now looks very similar to my JP 23 good video though
Old school US Amps where the bomb. I had 4 Orion XTR 12s in my Blazer back in say 1005 or so on a VLX-200 and it was crazy loud. Poor USA-100 on my fronts was no match to keep up but I didn't care. Crank some DJ Magic Mike. Fuun times,
Derek, I have a old Pioneer GM-X434 that I have owned since brand new. By far one of my favorite 4 channel amps. It is in need of repair and I have never seen one on the channel. I know you have people who fix amps. Sadly noone anywhere near me does.
I had a la sound Catalina classic running mono in my dodge Daytona to 2 -10 inch subs in a bandpass firing back at the hatch. Had 0 gauge wire back in the day. Had Kenwood excelon deck with no speaker outputs. Only had RCA outputs, top of the line deck. Along with a kenwood parametric EQ, excelon components, and tried many amplifiers and many subwoofers brand's.
Seems fairly efficient. But, don't know a lot about Class T topology. Lots of respect for US Amps products from back in the day though. Very solid. Interesting dyno and review.
I worked at a shop in Kentucky when those came out. Remember them well. I would love see some dyno on some amps I used back in the day on a budget like la sounds Malibu, Sherwood 440q and 240q, urban audio works, audio gods, and of course some pyramid amps. Anyway keep up the good work.
very cool. there were a couple companies that came out with tripath car amps. i had a blaupunkt one. a local supermarket had a pretty cool little electronics section and carried them along with stuff like the intel slotket adapters or cyrix 333mhz chips. i really liked it dont remember what ever happened with it but it seemed alright. i still run tripath amps at home
@@wal2 I thought tripath, was the company. Not some new wave. Basically a trademark. Not unlike "class d". Theres also a reason, you don't seem that used anymore, well unless you buy a tripath for 11 dollars online.
@@wal2 A 4 second google..because i remember these when they dropped. Many of us, then, though meh... but hey, to each their own. "A Tripath or Class-T power amplifier is a proprietary version of the Class-D switching amplifier developed by Tripath Technology. Tripath claims its architecture uses “adaptive” processing to improve general switching amplifier design" Again Big D no hate, and again, maybe im high, but, especially in the 2000s, trade marks and new thrown around words sold stuff,...Still works today. Also, everyone talking about efficiency,.. hell the times 10 method, comes into play here. It, to me, isnt earth shattering, .. hell hardly average eh?
So I'm wondering because the numbers were so close between certified and uncertified does that mean it has a regulated power supply? Great content, two videos today! Your a boss, D!
Dirk eckard still hand builds amps I believe for special projects I've watched videos of him building boards from scratch pretty impressive he knows his stuff
Cool amp back In the day. Was wondering if you ever got your hands on to test US acoustics amps? Like the USX 4065? I rocked one back in the early 2000s and still have it to this day. Was a very clean amp for price
It did more than rated power, which is typical old school quality amplifier. However I was a little shocked it fell flat on the 40Hz dynamic tests VS the higher certified and uncertified tests.
@@wal2 yeah, everything changed in the late 90s to early 2000s. I had some good old school equipment back in the day, wish I kept my Crunch 50SHC, Phoenix Gold ZX250, PPI PC650 and Rockford Punch 150HD, they were all great amps .. they don't make them like the used to!
@@wal2 I was a US Amps dealer back in the day. I loved them, rarely ever had a defect and the USX 2 and 3 were my favorite Xovers of all. Ah, the good old days. Cheers
My stupid ass traded an Autotek mm1700 for a US amps VLX 25 back in 99. It was a very stupid trade and I regret it to this day. That MM1700 was a high current 2 channel amp that ran 1 ohm stereo. It was a beast
Windows 95 98 is only we’re 3.5 inch floppy could be use . They had a lot of usage up till not long ago . Floppy 3.5 was also required to install windows xp. Was very annoying. Just want to point that out .the 5 1/4 floppy yes windows 95/98
![Old School HiFonics vs Orion Amp Dyno and SPL Testing [4K]](http://i.ytimg.com/vi/sDZhWJ8Aj58/mqdefault.jpg)
![This is NOT a 6300 watt Amplifier! Down4Sound JP63 Subwoofer Amp Dyno Test [4K]](/img/1.gif)
--------- Test Bench Equipment -------
SMD / D'Amore Engineering Amp Dyno: goo.gl/sJTcf7
XS Power D1400 Batteries - amzn.to/2BPFCKW
XS Power PSC60 Charger - amzn.to/2CHGcfs
Fluke 1000A AC/DC Clamp Meter: amzn.to/2Rw5WDA
Handheld Dyno: amzn.to/2u2EgKV
My Favorite Screwdriver Kit: amzn.to/2x0VzcE
DISCLAIMER: This video and description contains affiliate links, which means that if you purchase from one of the product links, I may receive a small commission. As an Amazon Associate I earn from qualifying purchases
Holy blast from the past! I used to run one of these powering two Aura 1808's in the back of a Stratus back in the early 00's. Local dB Drag comp clocked it at 139.6 back then, so it wasn't too bad for what little was apparently going into them. It was just a dumb, but fun setup. I eventually shifted gears to more outdoor adventures, so the whole system eventually made it's way into more dedicated hands.
Awesome 👏
I remember a guy years ago with those Auras who was a big presence on the old car audio forums. Had them in like an infinite baffle style mount. Always thought that looked like a cool set up.
@@fattytca1 Yep, that was me. :D
@@fattytca1 yeah those were pretty cool. been thinking of buying some of the neo radials and doing something with them. currently fixing some broke 3hp neos.
U.S. Amps 4ever. I still run RE Audio in all three of my vehicles. Thank you for this!
Great dyno testing keep up the good work sir
Totally forgot about the second channel big D! Thanks for posting this retro footage. There's a reason tripath topology faded away although there are a few manufacturers that still sell products with similar circuity. As far as I know they're all lumped together as class D these days. In it's time though it was a pretty radical departure from the industry standard A/B and the relatively crude D.
Trying to keep the ball rolling and less edited stuff goes here
That amp is a strait beauty.
Man, I'd love to hold one of those in my collection, very nice indeed
You can contact Brad at LegendsOfCarAudio.com to see if he still has this
I didn’t even know US Amps made a tripath!
Yeah boi. Some of the Bass Mechanik amps were Tripath too 😲
It's cool seeing how you recorded the videos then versus how you do now I have a US amps Bass Mekanik PT-1100 .. I've had it for some time now looks very similar to my JP 23 good video though
Yeah hopefully they are better now 😬
Very awesome amplifier!!
Love the video Big D!!
Thanks for watching and commenting!
Nice test Derek...looking forward to the d4s amp dynos
Will be a few weeks but they will be coming 👌
Old school US Amps where the bomb. I had 4 Orion XTR 12s in my Blazer back in say 1005 or so on a VLX-200 and it was crazy loud. Poor USA-100 on my fronts was no match to keep up but I didn't care. Crank some DJ Magic Mike. Fuun times,
Awesome 👏
Derek, I have a old Pioneer GM-X434 that I have owned since brand new. By far one of my favorite 4 channel amps. It is in need of repair and I have never seen one on the channel. I know you have people who fix amps. Sadly noone anywhere near me does.
Check with LinearPower.com, they have a TIPS division that repairs amps
I had a la sound Catalina classic running mono in my dodge Daytona to 2 -10 inch subs in a bandpass firing back at the hatch. Had 0 gauge wire back in the day. Had Kenwood excelon deck with no speaker outputs. Only had RCA outputs, top of the line deck. Along with a kenwood parametric EQ, excelon components, and tried many amplifiers and many subwoofers brand's.
Awesome 👏
Would love a much slower and much closer shot of amp internals. That thing looks awesome.
Sorry the amp is long gone and this is all the footage I had
@@wal2 aww ok. Thank you for the reply tho 🙏
What is that website that you showed the amp ratings from? That website has alot of the older amps w/ specs on it. I cannot find that website.
Seems fairly efficient. But, don't know a lot about Class T topology. Lots of respect for US Amps products from back in the day though. Very solid. Interesting dyno and review.
They were trying new stuff. Guess it didn’t work out well for them
I worked at a shop in Kentucky when those came out. Remember them well. I would love see some dyno on some amps I used back in the day on a budget like la sounds Malibu, Sherwood 440q and 240q, urban audio works, audio gods, and of course some pyramid amps. Anyway keep up the good work.
Which shop did you work at? I'm in KY myself and have been into car audio since the late 80's.
Lol I forgot about “urban audio works”. They had the ray screen printed on the purple Amps
I have an l.a. sound Hermosa that works in my collection
Thanks for watching and commenting!
Nic DEB Biggin Dizzle
VERY NICE! STILL GOING STRONG!
💪😬👍
very cool. there were a couple companies that came out with tripath car amps. i had a blaupunkt one. a local supermarket had a pretty cool little electronics section and carried them along with stuff like the intel slotket adapters or cyrix 333mhz chips. i really liked it dont remember what ever happened with it but it seemed alright.
i still run tripath amps at home
Sounds like another "class d" BS trade mark (marketing) to me...
Interesting !
@@wal2 I thought tripath, was the company. Not some new wave. Basically a trademark. Not unlike "class d". Theres also a reason, you don't seem that used anymore, well unless you buy a tripath for 11 dollars online.
@@wal2
A 4 second google..because i remember these when they dropped. Many of us, then, though meh... but hey, to each their own.
"A Tripath or Class-T power amplifier is a proprietary version of the Class-D switching amplifier developed by Tripath Technology. Tripath claims its architecture uses “adaptive” processing to improve general switching amplifier design"
Again Big D no hate, and again, maybe im high, but, especially in the 2000s, trade marks and new thrown around words sold stuff,...Still works today. Also, everyone talking about efficiency,.. hell the times 10 method, comes into play here. It, to me, isnt earth shattering, .. hell hardly average eh?
@@96kylar not quite.
So I'm wondering because the numbers were so close between certified and uncertified does that mean it has a regulated power supply? Great content, two videos today! Your a boss, D!
If so it’s the only US Amps I’m aware of with regulated supply. It could just be the chip hit it’s limit and gave up
Dirk eckard still hand builds amps I believe for special projects I've watched videos of him building boards from scratch pretty impressive he knows his stuff
Man that's awesome!
Cool amp back In the day. Was wondering if you ever got your hands on to test US acoustics amps? Like the USX 4065? I rocked one back in the early 2000s and still have it to this day. Was a very clean amp for price
Not an old one, not yet
@@wal2 well I hope you get your hands on a old one to test. Would be interesting. Do they still make them?? Cause you said not an older one.
Nice power. Definitely interesting power hookup location
Thanks for watching and commenting!
Very impressive efficiency!
😬👍
Can you get one of the new amps from U.S amps sent to you?
It did more than rated power, which is typical old school quality amplifier. However I was a little shocked it fell flat on the 40Hz dynamic tests VS the higher certified and uncertified tests.
The chip in these is known to fail so I didn’t want to push it too hard
@@wal2 yeah, everything changed in the late 90s to early 2000s. I had some good old school equipment back in the day, wish I kept my Crunch 50SHC, Phoenix Gold ZX250, PPI PC650 and Rockford Punch 150HD, they were all great amps .. they don't make them like the used to!
Totally cool video D thank you so much.
Thanks for watching and commenting!
It's about time 🤗😲
😬👍
Sweet amp.
Yessir!
@@wal2 I was a US Amps dealer back in the day. I loved them, rarely ever had a defect and the USX 2 and 3 were my favorite Xovers of all. Ah, the good old days. Cheers
mmmm US Amps.... would love to see some old school PPI or MMATS!!!
I’ve tested both on my main channel. Just search the brand and amp Dyno and you should find them
CLASST Tripath is indina technology Which is modified version of class D because it runs of much higher frequency
👌😬👍
Got any old Clif Designs tests?
Not yet
I remember when these were brand new.
👌😬👍
yeahhhhh boiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Thanks for watching and commenting!
Very cool 😎
Thanks for watching and commenting!
I remember the preview but you never show it I been watching for long time
Sorry sometimes I have to move on to different vids
@@wal2 it's all good just remember you got video you forgot about haha
I was liking the amplifier a lot until… the speaker and power shared on the same terminal… ouch!
Yeah that’s a bit scary for big dummies who can’t read 🤣
Great amps
Thanks for watching and commenting!
My stupid ass traded an Autotek mm1700 for a US amps VLX 25 back in 99. It was a very stupid trade and I regret it to this day. That MM1700 was a high current 2 channel amp that ran 1 ohm stereo. It was a beast
I don’t think it was a bad trade. Maybe more power from the Autotek, but I’m betting the VLX is more valuable today
You need to track down their long boards, you know the ones that held the world record for a bit
Every jL and Orion sold these amps for a reason
Like this? ruclips.net/video/_3kN5mBTBpA/видео.html
The white chalkboard is a nice touch, but did you know YT has closed captions for the hard of hearing? I guess the chalkboard covers the dummies! lol
Yes, great point. I did the board for me, makes it easier to find the clips
These were nice amps. Whatever happened to them?
US Amps was acquired by RE Audio 20 plus years ago
Hell ya
Boom shocka locka!
Signal to noise ratio is 100db, not to bad
👌😬👍
Love it
Thanks for watching and commenting!
Windows 95 98 is only we’re 3.5 inch floppy could be use . They had a lot of usage up till not long ago . Floppy 3.5 was also required to install windows xp. Was very annoying. Just want to point that out .the 5 1/4 floppy yes windows 95/98
This whole class T is named after Mr tripathi .
Mount Everest please.
🤷♂️
Tru power 🔋
Yessir!
It would take 6 boss Ava650/700 ( what I used in in 1991) to make that same power. That’s 6 x $100 🤣
😝👍
Never buy electronics that says hand crafted. You are buying kludged garbage. Reliability comes from a well-run production line running at 100% yield.
It was stated as pride back in the 80’s and 90’s but I know what you mean
Gainesville, Florida not far from me. Well not there anymore now owned by RE Audio now they are junk.
All good things must come to an end, at least that’s what they say
They were still designed by Dirk Ecker as recent as a few years ago. Not sure of the status now but thats a broad statement with little basis in fact.
@@envisionelectronics The facts are the two amps I bought were crap and died soon after purchase. So gfy