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Multi-Way Conventional loudspeakers with crossovers

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Old 28th October 2011, 02:15 AM   #511
vaughn is offline vaughn  United States
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Thanks John, that is very enlightening I guess I had it stuck in my head from earlier in the thread that the standard Manzanita really sucked up the juice. I built the original version but I had a higher power class D amp at the time.
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Old 28th October 2011, 03:23 AM   #512
Pano is online now Pano  United States
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Agree with John. The original Manzantia will do OK at modest levels with low power. But to really rock out, you need power. 60 WPC was plenty for me in a small room. More would be better.

These are down in Magnapan sensitivity territory.
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Old 28th October 2011, 03:46 AM   #513
vaughn is offline vaughn  United States
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Hey John, a little off topic but what SE KT88 amp are you using?

I've been looking at that Mikael Abdellah amp as a possible project for a while.
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Old 28th October 2011, 03:54 AM   #514
Pano is online now Pano  United States
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The one I fixed for him.
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Old 29th October 2011, 02:29 AM   #515
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Default That Pano guy, you got to watch him every Minute!!

The amp in question is an ASL 15 DT.

ANTIQUE SOUNDLAB

This particular amp was purchased for use at LSAF in June, but, unfortunately had some problems.

So, off to that Pano guy for evaluation and repair after the supplier, Divertech could not seem to find the problem.

After a couple of part upgrades and god only knows what else Pano did, the thing now sings like it should.

As for the efficiency of the Manzanita as currently configured. It is still an inefficient speaker. Low to mid 80's DBW. Of course the dirty little secrete is that a surprising number of small two way closed box systems with similar bass extention are not any more efficient and when you try to power most of them to the levels the Manzanita will play at, they, well, just can't keep up.

A good inexpensive little amp solution would be the PE (Dayton) 50 WPC "T" amp. Dayton Audio DTA-100a Class-T Digital Amplifier 50 WPC Provides Power To Computer Speakers, Bookshelf Speakers, Headphones, And More! 300-383

Not a world beater by any means, nore is it close to the musical ability of the ASL, but for an inexpensive throw down amp to get on started, it's not all that bad. Delivers around 35 WPC in to 8 ohms which is enought to get the Manzanita going.
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Old 13th November 2011, 02:56 PM   #516
Pano is online now Pano  United States
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Default Floor Stander

For those of you who really want a floor stander, John is finishing one up this weekend. It will appear soon. Much bigger baffle, different (15") woofer. Still inexpensive.

Stay tuned.
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Old 14th November 2011, 02:17 AM   #517
Dagwood is offline Dagwood  New Zealand
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Thanks Pano / John

I have been lurking quietly waiting for a FS design !! great news
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Old 14th November 2011, 04:56 PM   #518
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I'm lurking quietly waiting for the new high efficiency design

Can anyone post a link to details of the old (high efficiency) design ?

I'd like to see about "borrowing" some ideas to experiment with the design of my current open baffles which use vintage drivers
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Old 14th November 2011, 05:26 PM   #519
rvsixer is offline rvsixer  United States
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Looks like details on the new floorstander are elsewhere:
The best affordable DIY open baffle loudspeaker I've listened to so far.
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Old 14th November 2011, 05:45 PM   #520
vaughn is offline vaughn  United States
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Quote:
Originally Posted by richardcooper2k View Post
I'm lurking quietly waiting for the new high efficiency design

Can anyone post a link to details of the old (high efficiency) design ?

I'd like to see about "borrowing" some ideas to experiment with the design of my current open baffles which use vintage drivers
afaik no high efficiency design has been posted yet. John is working on trying to find a current production 18" woofer that works well.
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