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PD1550 in HD15
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JR.junior View Drop Down
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Joined: 14 December 2009
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Points: 1789 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JR.junior Quote  Post ReplyReply Direct Link To This Post Posted: 09 June 2010 at 10:45pm
Originally posted by fat_brstd fat_brstd wrote:

interestingly it does say on the data sheets that the 1550 has a 110oz magnet and a 154 has a 125oz magnet. It also states that they both have the same dimensions but it does not give a messurement for the width of magnet, just depth which is the same 161mm for both drivers.

I havnt actually ever seen a 1550 in the flesh so cant comment on the actual size difference but i was always under the impression that they were massive compaired to the 154. I would have expected it to be the same as the difference between the 186 & th 1850. ie the 50 being much bigger.
 
PD154 is a beast! It has a huge magnet in a 15" range. The magnet is even bigger than at PD186 18" driver.


Edited by JR.junior - 09 June 2010 at 11:10pm
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tv00 View Drop Down
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Joined: 10 August 2009
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Points: 1886 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tv00 Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2010 at 2:04am
strange, pd homepage says xmax 6,5mm:
http://forum.speakerplans.com/topic34629_post404540.html#404540
different from data sheet

How many watts on the SPL?
looks much louder than this rcf l15s800 & pd158 spl print, here the rcf seems to have a more flat response, rcf first:



158:
http://img24.imagevenue.com/img.php?loc=loc1&image=26d_HD15_PD158.jpg
or page 6 in "HD15 driver sims"
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JR.junior View Drop Down
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Joined: 14 December 2009
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Points: 1789 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JR.junior Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2010 at 7:33am
6,5mm is from old datasheet (400watt). In 2005 PD updated all drivers (PD154 has now 500watt, better Xmax) and so all new  PDF datasheets are corect http://www.precision-devices.com/asps/uploads/super/6.pdf .
PD154 and PD1550 uses the same cone and sorroundig. Displacement limit 22mm (peak-peak). The PD158 has smaller cone area.


Edited by JR.junior - 10 June 2010 at 7:46am
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Meat View Drop Down
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Joined: 05 June 2009
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Points: 1514 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Meat Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2010 at 10:29am
So 1550 and 154 simulate the same(ish) but do they sound the same?

Some people complain the 154 sounds 'brutal' or 'hard edged'. Is this less or more or the same with a 1550? SPL isn't the be all and end all.
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tweeter box View Drop Down
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Joined: 21 October 2007
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Points: 6784 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tweeter box Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2010 at 10:48am
I did alot of looking around and testing when i was deciding what to load my boxes with
1550 does have a slightly smaller magnet than the 154
larger x max than the 154 also
played a lil louder than the 154 and also clearer (whilst louder) on the 80hz and 220hz freq ranges
resale value on the 1550 is better than the 154
1550 can be used in other types of cabs also incase you do change your mind at a later date
no prizes for guessing what my boxes are loaded with Tongue
 
btw, my box is ever so slightly different to the HD15 but not alot in it to be fair
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cravings View Drop Down
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Joined: 30 January 2007
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Points: 7442 		Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2010 at 10:56am
do you use old turbos tweeter? i think i remember you interested in some...
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JR.junior View Drop Down
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Joined: 14 December 2009
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Points: 1789 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JR.junior Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2010 at 11:40am
PD154 works awsome in horns.
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tweeter box View Drop Down
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Joined: 21 October 2007
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Points: 6784 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tweeter box Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2010 at 12:07pm
Originally posted by cravings cravings wrote:

do you use old turbos tweeter? i think i remember you interested in some...
 
yes mate, Turbosound TS215 copies, not alot of difference to the HD15 to be honest, internal dims are only a CM or two out, only diff i can see is that they have a 2 piece section instead of the curved section
 
they came loaded with PD154 but after testing i opted for the 1550 beasts
 
running a (2 x 15") box @ 4r of each side of a C Mark mr2650 amp n they love it, can play quite deep aswell if right processing is used Wink


Edited by tweeter box - 10 June 2010 at 12:11pm
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cravings View Drop Down
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Joined: 30 January 2007
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Points: 7442 		Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2010 at 12:14pm
mine have pd154s in them (well the loaded ones do.. i have 4 singles and 2 doubles). they do bang hard. i use them over X1s. fane colossus 15b also sounded really nice in these.
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cravings View Drop Down
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Joined: 30 January 2007
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Points: 7442 		Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2010 at 12:15pm
no i don't.. i have 4 singles and 4 doubles..
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Joined: 11 February 2010
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Points: 56 		Post Options Post Options   Thanks (0) Thanks(0)   Quote LSS Quote  Post ReplyReply Direct Link To This Post Posted: 15 June 2010 at 1:15pm
i have two hds with pd154 a hd215 with pd1550s its still got kick but i can run it down to50 55 just to get a bit more bass and i have two with fane xb i think these sound same as the 1550s but can get a warmer bass hope that helps
LIQUIDSTEELSESSIONs.co.uk
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Joined: 10 August 2009
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Points: 1886 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tv00 Quote  Post ReplyReply Direct Link To This Post Posted: 16 June 2010 at 3:48pm
Thank you
Ths means that you think the xb sounds like the 1550 or even better?
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