[Mmaxed]

I am in the planning stages of an OB system.  Does anyone have experience with 2 or more of these drivers to be able to give a comparison?  Looking at flat baffle with two 15s per side.

[zimmer64]

I am using the Alpha's in the following setup:

Drivers are Fostex FX120 and Eminence Alpha 15
Active crossover using a minidsp 2×4
Asymetrical crossover at 200Hz 2nd order LR and 500 Hz 2nd order Bessel
3DB bass boost; 0.9DB gain high shelve, Q 0.7 @7KHz
Drivers connected in phase
Baffle size is 510 x 950 mm; beech wood 26mm, braced on the back using 40×40 mm beams
Designed using MJK licensed calculation models
Bi-Amplification using my Bob Latino Dynaco ST70 tube amplifier for the extended range driver and my LM3886 chipamp for the bass

http://zimmer64.wordpress.com/2013/12/11/open-baffle-using-fostex-fx120-and-eminence-alpha-15/

The setup sounds really nice, but bass below 40hz is lacking a bit. I read really good stuff about the AE drivers. Different price range though..... http://www.aespeakers.com/drivers.php?driver_id=47

Michael

[FullRangeMan]

Hi,
Iam wonder if this AES LO series are different from the Dipole 15??
IMO they seems similar drivers from the same brand.
In what they differs??

[embty2002]

Hi,
i had a pair of Alpha 15, but my pair of A&D Audio R1524 are much more better than alpha 15, IMHO.
more clear, controlled bass and cheap price like alpha; i'm playing with a AB power amplifier 125watts channel.
i'm using an active 3 ways system, with foobar + allocator plugin into a Motu ultralike mk1 firewire audiocard.
for the mid-high a pair of Focal PC165 coaxial car audio, with focal neomidium tweeter .

[JohnR]

Hi,
Iam wonder if this AES LO series are different from the Dipole 15??
IMO they seems similar drivers from the same brand.
In what they differs??

The T/S specs are different but in a nutshell I understand that they (the LO15) are the TD15M cone and suspension with the underhung Dipole motor. Compared to the dipole15: higher sensitivity, higher FS. Not sure about FR or distortion.

[FullRangeMan]

Thanks pal.