tell difference ?Old School PPI Flat pistons vs PRO class flat pistons

[rezzarect 10+ year member]

how do you tell the difference between the regular and pro class flat piston sub? someone selling a set, but i dont know how to tell what model it is..

Click to read more...

 

[infamous_e46 5,000+ posts]

get a model # and look at the motor and size of voicecoil

 

[rezzarect 10+ year member]

get a model # and look at the motor and size of voicecoil

doesnt have model # on the subwoofer..just a serial #..im thinkin its the pro because heavy subs..

 

[Rich B 5,000+ posts]

Wasnt one a cast basket and the other a steel basket?

 

[rezzarect 10+ year member]

Wasnt one a cast basket and the other a steel basket?

anyone have pictures for comparison?

 

[Beat_Dominator 5,000+ posts]

Yes Pro had spoke cast basket and MUCH larger magnet. Power Class had stamped steel basket.

 

[req 5,000+ posts]

http://www.google.com/images

 

[orangelss 10+ year member]

They also have a new series of them out. Their ok but nothing like the old one.

 

[Vermithrax 10+ year member]

Yep, the pros had a cast spoke basket. The stamped steel baskets are the PC's. Also, if they have a foam gasket on the front they're PC's, Pro series have PPI stamped around the ring. I'm pretty sure the pro's had spring loaded terminals where the PC's have spade terminals.

This is the PC-10's:

 

[rezzarect 10+ year member]

Yep, the pros had a cast spoke basket. The stamped steel baskets are the PC's. Also, if they have a foam gasket on the front they're PC's, Pro series have PPI stamped around the ring. I'm pretty sure the pro's had spring loaded terminals where the PC's have spade terminals.
This is the PC-10's:

then i guess i got me some pro10 then..thanx for all the input..

 

[hayden 10+ year member]

They also have a new series of them out. Their ok but nothing like the old one.

I like old school stuff as much as anyone (heck I am old), but the old PPI flat piston drivers were not known for their output - they were really SQ subs. I know that Alma and others used them in competitions, but they really got loud because they had multiples. While I haven't heard the new flat piston series, the specs would suggest that they have the output (and perhaps SQ) advantage.

JP

 

[FurbiesAndBeans 10+ year member]

Here's what a Flat Piston Pro 12" looks like

 

[audioholic 5,000+ posts]

Here's one of my pro's.