Alpair 10 wide bass driver and Alpair 10 Fullrange - Page 4

spedmetal · 4th January 2009, 08:30 PM

Hi,

I just got my Alpair 10 FR drivers and im burning them in on the floor. Ive been searching for some info on BLH cabinets, but as my knowledge on this subject is very limited, its been needles in hay. So if anyone can tell me is it possible to get good sound out of that combo, id be very happy. And if someone could suggest a cabinet desing to use, that would be just awesome!

Henkjan · 4th January 2009, 08:46 PM

won't fit in a normal Needle

or do you plan to widen them?

spedmetal · 6th January 2009, 03:00 PM

Hmm, well.. I still havent found a horn that convinced me, so Im thinking on building a Bruce BVR. One thing that worries me, is the X-max of the Aplair compared to the Fostex. So is there a possibility that the alpair will sound boomy in a Bruce? Of course the alpair is much smaller, but still, is this a real concern?

planet10 · 6th January 2009, 05:40 PM

Quote:

Originally posted by spedmetal
Hmm, well.. I still havent found a horn that convinced me, so Im thinking on building a Bruce BVR. One thing that worries me, is the X-max of the Aplair compared to the Fostex. So is there a possibility that the alpair will sound boomy in a Bruce? Of course the alpair is much smaller, but still, is this a real concern?

Isn't the Alpair 10 a 4" driver? Bruce was designed for the 8" Fostex. Harvey might work, but a cabinet is designed for a driver, just plopping in another one is a gamble.

dave

Henkjan · 6th January 2009, 07:56 PM

the alpair10 is more like a 5". is there no Fostex horn that would suite?

planet10 · 6th January 2009, 08:19 PM

Quote:

Originally posted by Henkjan
the alpair10 is more like a 5". is there no Fostex horn that would suite?

The Fostex horns are designed for specific Fostex drivers.

If you want to try boxes other than those designed for the Alpair 10, take it's T/S parameters (in particular, Fs, Vas, Qt) and find a driver with similar specs then go looking for boxes for it (complicated by factory data seldom being what we find when we measure them).

Keep in mind that BVRs (like Harvey/Bruce) & ML-TLs are probably more tolerant of differences.

dave

alspe · 7th January 2009, 09:43 AM

Quote:

Originally posted by planet10

If you want to try boxes other than those designed for the Alpair 10, take it's T/S parameters (in particular, Fs, Vas, Qt) and find a driver with similar specs then go looking for boxes for it (complicated by factory data seldom being what we find when we measure them).

Keep in mind that BVRs (like Harvey/Bruce) & ML-TLs are probably more tolerant of differences.

dave

What boxes are desingned for Alpair 10 FR? I haven't found anything. I am considering Konus Essence clone, the one used with Jordan JX92s. Very nice looking speaker.

Spedmetal, have you wrote here?

CSS/XBL · 7th January 2009, 02:09 PM

Hi,

I'm currently building them ported in 13 litres tuned to 45Hz and will report later. For higher power handling an 8 litre design was suggested but I'm not aware of that being built.
Dr Jim Griffin is also working on a MLTL design which will be published later this month.

Bob

_henry_ · 7th January 2009, 02:59 PM

its nice to hear Dr Jim Griffin is doing ML-TL for Alpair, we know he had a big success for the JX92S with this mini monitor and mltl.

can't wait to hear the result.

cheers

planet10 · 7th January 2009, 05:12 PM

Quote:

Originally posted by alspe
What boxes are desingned for Alpair 10 FR?

Like any new drivewr, it takes some time to get them out into the field and get some designs going.

dave

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4th January 2009, 08:30 PM	#31
spedmetal diyAudio Member Join Date: Jul 2004 Location: Kokkola	Hi, I just got my Alpair 10 FR drivers and im burning them in on the floor. Ive been searching for some info on BLH cabinets, but as my knowledge on this subject is very limited, its been needles in hay. So if anyone can tell me is it possible to get good sound out of that combo, id be very happy. And if someone could suggest a cabinet desing to use, that would be just awesome!

4th January 2009, 08:46 PM	#32
Henkjan diyAudio Member Join Date: Jan 2006 Location: Berkel en Rodenrijs	won't fit in a normal Needle or do you plan to widen them?

6th January 2009, 03:00 PM	#33
spedmetal diyAudio Member Join Date: Jul 2004 Location: Kokkola	Hmm, well.. I still havent found a horn that convinced me, so Im thinking on building a Bruce BVR. One thing that worries me, is the X-max of the Aplair compared to the Fostex. So is there a possibility that the alpair will sound boomy in a Bruce? Of course the alpair is much smaller, but still, is this a real concern?

6th January 2009, 07:56 PM	#35
Henkjan diyAudio Member Join Date: Jan 2006 Location: Berkel en Rodenrijs	the alpair10 is more like a 5". is there no Fostex horn that would suite?

7th January 2009, 02:09 PM	#38
CSS/XBL diyAudio Member Join Date: Oct 2003	Hi, I'm currently building them ported in 13 litres tuned to 45Hz and will report later. For higher power handling an 8 litre design was suggested but I'm not aware of that being built. Dr Jim Griffin is also working on a MLTL design which will be published later this month. Bob

7th January 2009, 02:59 PM	#39
_henry_ diyAudio Member Join Date: Jun 2002 Location: Indonesia	its nice to hear Dr Jim Griffin is doing ML-TL for Alpair, we know he had a big success for the JX92S with this mini monitor and mltl. can't wait to hear the result. cheers

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