Eminence legend BP102

[Catalin]

Hey guy have you tried this speakers?
I wanna make a 4x10 sealed cab. I am looking for a vintage(SVT-ish) tone, i dont like a mid scooped, hi fi tone.
I have a warwick streamer lx5, ampeg svp pro preamp, tube power amp 250W.
I play metal music
Do you think those speaker will be strong enough for my set-up?

Here is the link:
http://www.eminence.com/guitar_speaker_detail.asp?model=LEGENDBP102&speaker_size=10&SUB_CAT_ID=5

 

[billfitzmaurice]

The drivers used in the SVT are similar to the Alpha 10.

 

[Catalin]

So alpha10 is the most svt-ish speaker from eminence?

 

[joelb79]

I'm not so sure about that.

The speakers in an SVT Cab handle 100w each. Alpha 10's handle 150w. That goes to say that the voice coil and suspension would be entirely different from from the Ampeg OEM drivers.

That being said, Alpha 10's sound like Eminence 10's. They seem to loose headroom quickly. My Fender 210 is sealed and it seems to give-up at 1/2 the volume. That being said, it sounds like a mini-svt (after i killed the tweeter and bypassed the crossover).

 

[Catalin]

 

[greenboy]

Over the past few years RMS ratings and minor shifts in T-S parameters took place on some models anyway.

Catalin, if it's all Greek to you you might be better off relying on factory cabs. Either that, or download WinISD and do some reading and plug some T-S specs in and see what's going on with various cabinet tunings/sizes.

If you are bound and determined in picking a speaker for a sealed cab and hope that the guy you say will build the cabs actually has a clue, I suggest you look at some of Eminence's cab pdfs for each of the speakers and download as well some datasheets on specific speaker models.

A good place to start might be the BASSLITE CA2010, which is one that's actually recommended for sealed enclosures.

Myself, I think you'd ultimately be happier with a properly ported cab and having those 3 or so free dB of lower end that you get when doing ported designs. The 810 has a lot of speakers so it gives one a feeling that there's enough low end anyway - but with a 410 I don't think I'd be satisfied with the same response graph.

 

[bgavin]

The easiest way to find out for sure, is ask Ampeg for the T/S specs for the driver. They will most likely refuse to provide that info, claiming "trade secret" or some silly nonsense.

The next easiest way is do the T/S measurements on a working SVT driver, then post the results all over the internet for everybody to see. It is easy to compare T/S between the Ampeg driver and various Eminence to see what comes close.

For the OP question, the BP102 is a good driver, but requires a fair amount of cabinet volume. The new style (Polyimide) driver requires 2.7 to 4.0 cubic feet per driver for optimal tuning. You can stuff it into a smaller box, and get the resulting mid-bass hump at 100 Hz, and steep rolloff below that.

The EBP for this driver is 74, placing it midway between Sealed and Vented. You can use this driver in a sealed cab of 1.9 to 4.0 cubic feet per driver. The 1.9 cubic feet is the B2 sealed alignment with maximum bass extension. The 4.0 cubic feet is the D2 sealed alignment for tightest transients, but a more rolled off bass (like SVT). Four drivers in 16 cubic feet is a very large cab (24x24x48).

 

[Catalin]

. The 810 has a lot of speakers so it gives one a feeling that there's enough low end anyway - but with a 410 I don't think I'd be satisfied with the same response graph.

I wanna make 2 cabs 4x10 and 1x15. First will be 4x10.

 

[billfitzmaurice]

The easiest way to find out for sure, is ask Ampeg for the T/S specs for the driver.

I have them. The stock Eminence driver that comes closest to it is the Alpha 10. Aside from the 32 ohm impedance the rest of the specs are extremely close.

 

[Catalin]

Wow those alpha10 are so cheap !

 

[greenboy]

Some might say there's a reason for that ; }

 

[Catalin]

I know: you get what you pay for right ?

 

[Catalin]

No one have legend bp102 speakers on his cab or at least tried a cab with those speakers ?

 

[bgavin]

I have them. The stock Eminence driver that comes closest to it is the Alpha 10. Aside from the 32 ohm impedance the rest of the specs are extremely close.

If you are not restricted by non-disclosure, please email to me.

 

[bgavin]

No one have legend bp102 speakers on his cab or at least tried a cab with those speakers ?

Only the DIY builders. These drivers require require 2.7 to 4.0 cubic feet, each, for optimal tuning. They are still direct radiators with a low sensitivity around 91 SPL. Two BP102 require 8 cubic feet for optimal low bass response. That is a very large cabinet size for a pair of 10s facing you. This is not visually appealing in a 2x10. Two BP102 in a bass horn of similar size has a lot more output.

The BP102 also requires a mid range driver. It is a very nice driver for what it does, but it does not do full range. It is my favorite 10" bass driver. I hope Eminence releases it in Neo, because none of the current 10" Neo offerings has the Xmax or Xlim of the BP102.

 

[Goingdownslow]

I'm not so sure about that.

The speakers in an SVT Cab handle 100w each. Alpha 10's handle 150w. That goes to say that the voice coil and suspension would be entirely different from from the Ampeg OEM drivers.

The specs on the 800 watt 8x10 say it contains "8 Custom Designed 150 watt 10" speakers"

 

[A9X]

If you are not restricted by non-disclosure, please email to me.

Ditto please. I have a pair and would like to find an application for them.

The specs on the 800 watt 8x10 say it contains "8 Custom Designed 150 watt 10" speakers"

This is what's known as "Marketing Mathematics"; no matter how you look at it, it doesn't add up.

 

[kj.bass]

Is it possible that not all 150 watts can be used due to thermal limits on the driver in a cabinet that is not designed optimally? Specs from manufacturers are often an overgeneralized detail. Hi.