Spawn of Frugel-Horn

olivia

Back to my question: Olivia or chili.
The fr-sim shows almost the same lf extension. If olivia is really able to reproduce 50hz without loss, olivia will be the one. I have build the Fostex fe168ez rec. These roll off at 50 Hz, too. Bass was quite impressive. not very deep, but very clear. I think Chili must be similar. The moving mass of the fe127e is just 3,5 gramm, so the bass must follow very easy.
I buils a TQWT, too. Martin Kings Project 5. Bass was much deeper, but not so clear.

Hmmm......
 
Re: olivia

Spassgeneral said:
Back to my question: Olivia or chili.
The fr-sim shows almost the same lf extension. If olivia is really able to reproduce 50hz without loss, olivia will be the one. I have build the Fostex fe168ez rec. These roll off at 50 Hz, too. Bass was quite impressive. not very deep, but very clear. I think Chili must be similar. The moving mass of the fe127e is just 3,5 gramm, so the bass must follow very easy.
I buils a TQWT, too. Martin Kings Project 5. Bass was much deeper, but not so clear.

Hmmm......

Don't get fixated on simulated FR graphs. You have to know how to properly interpret them before they're any more than nominal use. A small cone simply cannot shift a large amount of air, even with the vent coupled to a large quantity of the stuff. Power handling simply isn't great enough. The object with these is not bass extension and power. Good for 70 - 80Hz is the object, & easy to match to supporting woofers. If you've still got the 168s, then there's a double box on the way for them, or their perfect for a BIB.
 
olivia vs. chili

I have sold the 168s.

😡 the mids and bass were to die for.
again, the horns don't need to play loud. So olivia might be the better choice. Size of the box dosn't matter.
I don't have ordered the fostex yet. Is there a really alternative using the monacor sph-60x. I heard this one is really good, too
 
two Projects

There are two projects on my list.
1. Martin Kings Project no.2 with fe167e
2. a nice Fostex-horn
My living room is about 50 qm, my listening room in the basement is about 22 qm.
So i think Kings no.2 are mainly for the living room.
For the smaller listening room it would be nice to have the chili, so that I can compare the
different solutions. I am very curious to see wether the chili cabinet gets near to the no2s performance.
I like olivias design very much and I can imagine that olivias fit into my listening room very well. But I also like to swap speakers to my listening room, so the horn has to suite the living room as well. I don't think olivia will fill such a large room.

I think I will go with the chili
 
Greets!

FWIW, there was a short ~critical listening session of a MJK ML-horn (project #2) at a local DIY Meet several years ago and it audibly compressed all the way up through the mid-bass so much that I consider it and most other low tuned/low Xmax 'FR' BR, TL, ML-TL, ML-horn alignments strictly a ~nearfield speaker regardless of room size if not corner loaded, so Caveat Emptor.

GM
 
Re: Re: olivia

Scottmoose said:


Don't get fixated on simulated FR graphs. You have to know how to properly interpret them before they're any more than nominal use. A small cone simply cannot shift a large amount of air, even with the vent coupled to a large quantity of the stuff. Power handling simply isn't great enough. The object with these is not bass extension and power. Good for 70 - 80Hz is the object, & easy to match to supporting woofers. If you've still got the 168s, then there's a double box on the way for them, or their perfect for a BIB.

It would be slick if you guys could design and post a subwoofer design taylored for the Olivia and/or other FE127 speakers. 🙂 🙂 🙂
 
Re: Re: Re: olivia

thoburnse40 said:
It would be slick if you guys could design and post a subwoofer design taylored for the Olivia and/or other FE127 speakers. 🙂 🙂 🙂

Shadow or Shadow SD12 (there might be a few minor changes for optimizing the SDX-7 in Shadow) -- to get maximum integration probably a pair of Shadow with a total of 4 SDX-7.

dave
 
And now for a new variation....

Something for the FE208ESigma should be on the way (once I get my email up & running). Ever lain awake at night, pondering on the lack of a TQWT double waveguide horn hybrid using a traditional reflex venting alignment? I have. So that's what's coming. Minimal damping, no series resistance required, 40Hz tuning, driver excursion well below Xmax down to below Fc. The cabinet's deliberately run over a wider passband than the BVRs; it's closer to most BLHs in this respect -my little nod to Terry Cain & Bruce Edgar, & their pursuit of dynamics.
 
Sunrise over BVR Iris

Sunrise over BVR Iris
 

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Re: Re: Re: olivia

thoburnse40 said:

It would be slick if you guys could design and post a subwoofer design taylored for the Olivia and/or other FE127 speakers.

Well, in theory, a single SD12 channel in a ~226" long x ~37.98"^2 CSA 15 Hz TL/channel will acoustically blend with the Olivia's simmed roll-off once its higher harmonics above its 3rd harmonic dip at ~60 Hz are EQ'd down, then just use a XO point where they sum flattest. The pipe loads the driver at a 2:1 compression ratio though, so a little ingenuity is required to cosmetically blend the driver to the end of it.

GM
 

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So that's what's coming. Minimal damping, no series resistance required, 40Hz tuning, driver excursion well below Xmax down to below Fc. The cabinet's deliberately run over a wider passband than the BVRs; it's closer to most BLHs in this respect -my little nod to Terry Cain & Bruce Edgar, & their pursuit of dynamics.

I'm very much interested in seeing these. How do you think they'll compare to the Sachiko's?

🙂
 
Re: Sunrise over BVR Iris

thoburnse40 said:
Sunrise over BVR Iris


I'm ready to button up the Harvey (did some cosmetic polishing today.)

This isn't the Harvey builder's thread but I'm wondering what treatment you are using in the BR portion ( what I call the compression chamber in the Harvey)?

Initial test gave the impression of The Hardy Boys and the Treasure in
the Cave.

I've been fooling around with other projects and fearful of finishing the last side without knowing something about how to do the stuffing. I normally do very little of that. Keeping clear of the BVR vent looks troubling.

Some pics of the inside would help.