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BlackUnikorn 12th April 2004 08:27 PM

High efficiency 2 way using Eminence Alpha6 + Horn tweeter
I need some help with a speaker design. Basically I want to build a pair of 2-ways using the Eminence Alpha 6 as a midwoofer. I am interested in high sensitivity and decent fidelity. The problem is I can't find a tweeter to match the Eminence's high sensitivity, which is around 100db/watt. The closest I have found are horn tweeters and some domes with around 95db's efficiency. I need some guidance, here are some spec sheets i have found: - Eminence Alpha 6 data

The tweeters:

sreten 12th April 2004 09:40 PM

A decent horn loaded PA tweeter hits 105dB/W +.

First one I came across :

Whats your problem ?

:) sreten.

till 12th April 2004 09:43 PM


A decent horn loaded PA tweeter hits 105dB/W +.
109 to 110 dB @ 1W :

BlackUnikorn 13th April 2004 12:15 AM

Thanks for the replies.

I am looking at building a high efficiency small monitor type 2 way speaker. The problem is that I would prefer to use a regular tweeter, not a horn. I need help with the cabinet dimensions and crossover design. I know this is very complicated and few people have the time/knowledge to come up with a good design. I am a computer engineer and have taken some electric circuit theory. Where are some good tutorials and software to get started??

sreten 13th April 2004 12:18 AM

After baffle step correction (google or search)
you'll realise you only need a 94dB/W tweeter.

:) sreten.

till 13th April 2004 12:19 AM

no horn, take a ribbon:
95 to 100 dB/1W

454Casull 13th April 2004 12:29 AM

till, check out the power handling.

BlackUnikorn 13th April 2004 03:40 AM


BlackUnikorn 16th April 2004 12:00 AM

bump again

DeonC 16th April 2004 10:19 PM

Have you considered the Fostex FT17H or maybe one of it's bigger (and more expensive) brothers (like the FT96H horn supertweeter @ 100dB/W)? These are horn-loaded, but I do think that they will suit your purpose. The Alpha 6 goes quite high so these should be very compatible. Madisound carries a good range of these.


PS. Are these going to be part of a set of three-way speakers, or are you going to use them with a sub? The Alpha 6 has a very high Fs of 118Hz, so using them alone you won't have much bass.

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