Me150hs

[Guido]

Giskard,
I did a search for the ME150HSand it seems that you once posted the ThieleSmall Parameters and then deleted it again.

Why you always do that? Is there so much problems with copyrights to expect?

Anyway, could you please post again or PM me?

Thanks

[4313B]

Fs = 38 Hz
Qms = 6.4
Vas = 130.3 liters
Cms = 0.116 mm/N
Mms = 0.153 kg
Rms = 5.708 mohms
Xmax = ?
Xmech = ?
P-Dia = 337.5 mm
Sd = 0.089 sq.m
Vd = ?
Qes = 0.35
Re = 5.6 ohms
Le = 1.12 mH
Z = 6.72 ohms
BL = 24.2 N/A
Pe = ?
Qts = 0.33
no = 1.969 %
1-W SPL = 95.09 dB
2.83-V SPL = 96.64 dB

[Guido]

THANKS ;)

[Guido]

I did not expect this:eek:

Red is ME150HS in 4343 Cabinet with original X-Over
Blue is 2235H/2231A in 4343 Cabinet with original X-Over

[Guido]

Would there be any sense to try a ME150HS instead of 2235H?

Is it the superior Transducer?

Not much is written about it.

[Alex Lancaster]

Wouldn't the 2235 put out more than the 2231 at 20Hz?, at least according to JBL they do.

Alex.

[4313B]

"I did not expect this"

What enclosure size and tuning frequency are you using?
5.6 cubic feet and two 4.125" ID ports x 8.25" ducts for an Fb of ~ 32 Hz right?

What is the DCR of that stock LF inductor or do you have a stock one?

"Would there be any sense to try a ME150HS instead of 2235H?"

If you have them then try them :)

[4313B]

"Wouldn't the 2235 put out more than the 2231 at 20Hz?"

Only if you spank it :p

[Guido]

Originally posted by Giskard
"I did not expect this"

What enclosure size and tuning frequency are you using?
5.6 cubic feet and two 4.125" ID ports x 8.25" ducts for an Fb of ~ 32 Hz right?

How you know?;) ;)


What is the DCR of that stock LF inductor or do you have a stock one?
I use the original 4343 network except the 2012 modification :blah: :blah:

"Would there be any sense to try a ME150HS instead of 2235H?"

If you have them then use them :)

I just fiddle around:p
I think they are hard to get.

[Guido]

Originally posted by Giskard
What is the DCR of that stock LF inductor or do you have a stock one?



I can measure all DCRs of 4343 network as soon as I'm ready to take them out again.

I had them out for the 2012 mod. and bypassed the 2405 section right then and guess what...
I did not measure the DCR of the coils to help everyone here :banghead: :banghead:

[Jan Daugaard]

Hi Giskard,

thanks for providing more detailed parameters for the ME150H than in your reply from 7-23-2003.

However, there are some parameters that I don't know, namely "Rms = 5.708 mohms" and "Pe = ?". Would you explain their significance?

And at which frequency is Z measured?

Jan D.

[Rudy Kleimann]

What is the core of the ME150H?
I'm guessing it's the 2227 / 2242 motor...
I'm hoping it's the 2227 basket, as I have 3 2227H that need to be reconed


1audiohack once showed me a 15 in high-end JBL woofer that looked very similar, but I don't remember what it was...
I had just visited another LHS member and seeing his ME150H woofers, but I can't remember which was which.
I recall that one of the woofers had an odd vent space through the side of the frame between the spider mounting pad
and the magnet mounting flange that was unique to the other 15" frames with the huge spokes, a la 18" frame.

Can someone post relevant pictures identifying the ME150H to this thread, especially a side view showing the thickness
of the magnet top plate and the cast shspe of the basket?

[HCSGuy]

Yes, same ME150H uses the same frame as the 2227. If you look in the for sale thread, Cooky is selling a pair of 2227's reconed as ME150H's. Guido has also posted on doing this in the past. I do not know the availability of recone kits, however.

[Rudy Kleimann]

Yes, same ME150H uses the same frame as the 2227. If you look in the for sale thread, Cooky is selling a pair of 2227's reconed as ME150H's. Guido has also posted on doing this in the past. I do not know the availability of recone kits, however.

I saw the poss about Guido's reconing 2227 into ME150H


What frames am I thinking of that I've seen with the side vents near the magnet and under the spider?

[Earl K]

I saw the poss about Guido's reconing 2227 into ME150H


What frames am I thinking of that I've seen with the side vents near the magnet and under the spider?

The frame ( that was similar looking to the 2227 but with the foamed vents under the spider area ) belonged to the sub1500.

https://www.parts-express.com/data/default/images/catalog/500/299-750_ALT_0.jpg (https://www.parts-express.com/jbl-sub1500-15-subwoofer-4-ohm--299-750)
BTW, the 2227 cannot be reconed into a sub1500 due to a bunch of mechanical differences ( > I'm pretty sure Giskard laid all this out many years back ).

:)

[Rudy Kleimann]

The frame ( that was similar looking to the 2227 but with the foamed vents under the spider area ) belonged to the sub1500.

https://www.parts-express.com/data/default/images/catalog/500/299-750_ALT_0.jpg (https://www.parts-express.com/jbl-sub1500-15-subwoofer-4-ohm--299-750)
BTW, the 2227 cannot be reconed into a sub1500 due to a bunch of mechanical differences ( > I'm pretty sure Giskard laid all this out many years back ).

:)


Earl, thanks for pisting the picture!

Makes perfect sense... An ultra long excursion subwoofer would benefit from the vents to relieve the pressure & vacuum built up between The Spider and the top plate during long Excursion where the 2227 is a mid-woofer with relatively short excursion.
I would've thought the ME150H also would be built with the vented frame.:blink:

[cooky1257]

ME150/2227 SIDE VIEW.

https://live.staticflickr.com/65535/48985526458_5ea9e3a627_z.jpg

[Earl K]

More sub1500 info here, from the catacombs! (http://www.audioheritage.org/vbulletin/showthread.php?4573-Can-something-become-a-Sub1500)

:)

[spirou38]

I just fiddle around:p
I think they are hard to get.

Hi Guido,

Here are some pics of one of my two ME150H :

85261
85262
85263
85264
85265

Pascal from France

[spirou38]

I just fiddle around:p
I think they are hard to get.

Hi Guido,

Last pic of one of my two ME150H :

85266

Pascal from France