Slim Amps = *** /// Helix

[dragnix 5,000+ posts]

Both the PDX and the JLs use full range Class D topology and make the same power regardless of load. They have the same basic chassis layout and same stackable chassis design. Coincidence? I don't believe in it.

Exactly the point i was getting at //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I just hope all the JL fanboys doesn't jump on this and say JL is the first to have done this, or if they do it better //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[helotaxi 5,000+ posts]

I wouldn't be surprised if there are some small (crossover or input stage) differences or if JL was in on the design with Alpine, but from everything I've seen I can't see how these are significantly different amps.

 

[dragnix 5,000+ posts]

me neither, perhaps JL may have developed the same features or perhaps better ones than the slash series, considering they'll be placed above them. Sheesh, wonder what is the cost gonna be if it's gonna be above the slash series //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

 

[helotaxi 5,000+ posts]

I don't think that the Slash series are all that expensive, honestly. Look at retail on the PDX amps and that should give you an idea. They retail for big coin, but Alpine doesn't hold any dealers to retail...except their F#1 Status dealers.

 

[Telegon80 10+ year member]

Both the PDX and the JLs use full range Class D topology and make the same power regardless of load. They have the same basic chassis layout and same stackable chassis design. Coincidence? I don't believe in it.

okay so JL Audio Engineering and Alpine Engineering Departments are developing the amps together. Dude please entertain me more, I am ROLFING here. What's next an JLPINE TYPE Rv3

I bet you a paycheck that you open both amps and they will be NOTHING alike, at all.

 

[James Bang 5,000+ posts]

i wonder what's the actual height of those JL and PDX amps..

i know these are 35mm, though. = slimness

http://picasaweb.google.com/mobster909/SunStarAffinity/photo#5145973107991462322

 

[helotaxi 5,000+ posts]

okay so JL Audio Engineering and Alpine Engineering Departments are developing the amps together. Dude please entertain me more, I am ROLFING here. What's next an JLPINE TYPE Rv3
I bet you a paycheck that you open both amps and they will be NOTHING alike, at all.

Could be they just both bought the design from the real developer. It wouldn't be the first time, or the last, that a car audio company used an off-the-shelf design. Ever heard of an OEM contract? You think that every component out there is an independent effort of the company selling it? You think that Optima makes batteries? You think that JL makes their component speakers in house or even did the R&D on them? JL designs and builds their subs and other than the Slash series amps, they outsourced everything else. Chances are good that Alpine, or rather their Chinese manufacturer, is the OEM for those amps.

 

[Telegon80 10+ year member]

Could be they just both bought the design from the real developer. It wouldn't be the first time, or the last, that a car audio company used an off-the-shelf design. Ever heard of an OEM contract? You think that every component out there is an independent effort of the company selling it? You think that Optima makes batteries? You think that JL makes their component speakers in house or even did the R&D on them? JL designs and builds their subs and other than the Slash series amps, they outsourced everything else. Chances are good that Alpine, or rather their Chinese manufacturer, is the OEM for those amps.

when the HD amps are released i'll bump this thread with pictures of the internals as well as the alpine's internals and prove you wrong. but as of right now both of us cannot backup our statements.

 

[flakko 5,000+ posts]

i wonder what's the actual height of those JL and PDX amps..
i know these are 35mm, though. = slimness

http://picasaweb.google.com/mobster909/SunStarAffinity/photo#5145973107991462322

the helix's are a good inch thinner than the pdx's

 

[flakko 5,000+ posts]

when the HD amps are released i'll bump this thread with pictures of the internals as well as the alpine's internals and prove you wrong. but as of right now both of us cannot backup our statements.

or prove YOU wrong //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[dragnix 5,000+ posts]

ROFL, the JL fanboi is here!!

Did u know that the JL class D is actually a patent that JL licensed from an inventor over at UCI? Tho i have to specify that whether or not it's regular class D or there's something special about it. This same patent also had something about PWM in it tho //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Telegon80 10+ year member]

or prove YOU wrong //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

chance of JL amp being ANYWHERE near resembling the Alpine: 0.000%

dont ask me how i know, but you guys are making idiots out of yourselves saying two audio giants are sharing amplifier designs. seriously you guys must be joking.

 

[perfecxionX 10+ year member]

dont fuck with helotaxi mang , he knows his shat

 

[audiolife 5,000+ posts]

chance of JL amp being ANYWHERE near resembling the Alpine: 0.000%
dont ask me how i know, but you guys are making idiots out of yourselves saying two audio giants are sharing amplifier designs. seriously you guys must be joking.

depends...its not like some dont share woofer baskets lol...back in the 80's and 90's with amps i would say no as ppi (think until the sedona?),mtx,rf, soundstream and orion all built their own in house..but since crossfire has shown you could get decent quality from asia i wouldnt be suprised....a build house is just that and if it is a low to mid line amp at a good price the oem/buildhouse might have designed it and offered the design to all...its not like there isnt any 5000-7000 watt amps like that now is there? lol for a while there were 2 or 3 pretty good sized amp build houses in the us but those pretty well died down (size wise) since 2001-2002 and are now over seas.

 

[helotaxi 5,000+ posts]

Would it surprise you that when CD changers first came out that the CD transports were all made by one of two companies? Sony and Kenwood and a few other companies used the same changers. Only the control bus was different. I'd say that they qualify much more as giants than either JL or Alpine.

You seem to think that you have some sort of insight to the workings of the world. Economics are the workings of the world. There is no sound business reason to duplicate effort in the realm of high tech. You actually think that all the flat panel brands out there make their own panels in house. Last I checked there are a whole 2 makers of the actual panels for plasma TVs. All the name brands, from cheapest to most expensive, buy from them. LCDs are the same way. Stuff gets outsourced. Welcome to the global market. That doesn't mean that stuff doesn't get tweaked by the company marketing the product. Spec changes to some resistors here, transistor specs there, cap values and tolerances massaged a bit and the result is a different amp in either power output, load stability or reliability, but at its heart it's still the same amp. Same circuit layout, design topology and driving philosophy. Built on the same mainboard. Precious few electronic components are built in the US anymore, it just isn't cost effective. Whine all you want about jobs lost overseas, but most people whine more when they see the pricetag of a Made in USA amp. Even overseas where labor is cheap, tooling costs for a new product are not. If you can share that tooling cost with another company and each get a new and differently spec'd product out of the deal, you'd be a business fool not to. JL has proven for years that their leadership is anything but business fools. They may be very different amps, we'll see; but I would be more than highly surprised if this were the case. The similarities will far outnumber the differences.