Lii Audio 15" full range

[bobikdartanan]

We're going back in time, but getting a little bigger.
TWOGOODEARS - トゥーグッドイアーズ: Klangfilm Bionor
Horns+Tubes+Vinyl and digital too - Showroom/Listening Room 1 -

Audionirvana.org
One Amigo Visits Utah To Hear 5 Reference Turntables-My Step Beyond | What's Best Audio and Video Forum. The Best High End Audio Forum on the planet!
sizes:
2.5m x 1.82m x 1m Weight 110kg Frequency recponse 50...15000hz crossover 500hz

 

[Soundhappy]

Klangfilm Bionor = mixture of open baffle with horn Interesting

 

[scottjoplin]

Thanks Craigtone
After open baffles demonstration with 12"Full Range PHY/HP
what was my conclusion : only high and large dimensions size can produce more realistic double bass
like in jazz music etc. and room acoustic conditions are importent

I would worry about those large baffles resonating and also blocking the reflection from the wall behind them.

 

[Soundhappy]

I don't noticed strange resonances or such..
Can write about the long music session in the past with this large open baffles and 12" PHY/HP drivers + PHY/HP tweeter.
Baffles was made with high quality wood and sand filled inside.
The OTL Audiomat amp and passive preamplifier were playing
London Symphony Orchestra with Ravi Shankar and Yehudi Menuhin album
this was an extraordinary sound stage and beautiful emotional music experience subtile and powerful at the same time
Can be interesting with F-15 to try or reducted size Klangfilm Bionor for me..

 

[planet10]

I heard those in a couple different rooms (the big PHY OBs, not the FE166 box — it really wants to be in a horn) and was not impressed, but that was before the hifi shop discovered SE amps which i think would be a better match.

dave

 

[planet10]

Klangfilm Bionor = mixture of open baffle with horn Interesting

They are beauties

dave

 

[bobikdartanan]

I heard PHY/HP in these cases, they resonated a little.Amplifier PP 845

 

[Soundhappy]

I mean the use of PHY/HP sand filled baffle plan design can be adapted to LiiAudio F-15 etc.
Lii Audio 15" full range
With large dimensions they can reproduce much better low frequencys , so less urge to add the woofer.

 

[planet10]

Indeed. A large baffle can make a big difference.

We got amazing bottom out of a pair of OB specific unobtainium Korean 6.5” FR on a 17’ wide baffle produced better bottom then the 15” Eminence on a 30” wide baffle (1,1m high).

dave

 

[Soundhappy]

I also just got a pair of F15.

Do you have pay F-15 importation customs fees ? If yes how much € in France ? Thanks

 

[mikey_audiogeek]

Indeed. A large baffle can make a big difference.

We got amazing bottom out of a pair of OB specific unobtainium Korean 6.5” FR on a 17’ wide baffle produced better bottom then the 15” Eminence on a 30” wide baffle (1,1m high).



dave

How did you end up with a 17' wide baffle Dave? Like this?
Spinal Tap - Stonehenge, funniest clip ever. - YouTube

 

[planet10]

Existing 1.3 m wide baffles were extended with a number of sheets of (Mercedes) floor plywood.

dave

 

[luc777]

F12

Hi guys,
I wanted to order the F15 model but after reading your comments I'm now thinking about the F12 (deeper bass)...any thoughts on this?
Thanks.

 

[jjasniew]

Depends on what you want to do. My F15s are assisted in the bass. I found the 15s lacking in bass by themselves.

You could always do that at a later time with the 12's, should their performance there be not to your liking. They seem to be a better design / shot at covering bass frequencies with one driver. So does their 18". Both appear to be an evolutionary step by Lii above and beyond their F15, which is on sale...

 

[Soundhappy]

F-15 pair can be interesting to try with very big large open baffles
not small for good bass guitar , orgue sound etc.
Horn enclosure can be interesting..Voice of Theatre for example
Edit: no need altec ,....use just wide rage F-15

 

[Soundhappy]

Full ,wide range speaker in the place of the woofer in Voice of the Theatre..horn speakers for F-15 (18) driver..

 

[Scottmoose]

Sounds like a good way of wrecking a perfectly innocent VOTT...

 

[Soundhappy]

Sounds like nothing in practice..
but the idea is use the full range F-15" driver with horn
instead of very short open baffle for all and low frequencies

 

[bobikdartanan]

IMHO ,F15 has a weak motor for the horn. I've wanted to do horn for a long time, but I don't have room for a big one, and I don't want a little one.
Some make it very big:
The best horn loudspeakers in the world! Version 1 | eBay

The best horn loudspeakers in the world! Version 1

Size ~ 4x4x8 meters. Weight one ~ 2 tones!

 

[GM]

Full ,wide range speaker in the place of the woofer in Voice of the Theatre..horn speakers for F-15 (18) driver..

'Funny' you should mention this since I noticed something familiar when I looked at craigtone's measurements last night, just couldn't 'put my finger on it', so thanks for the 'nudge'!

The small VoTT is a 110 Hz 1/4 WL expo flare that loads from ~150 - 342 Hz, so based on craigtone's red trace and knowing how much 'over the top' enthusiasm the Asian audio community has for W.E./Lansing/Altec in general and the small format A5/7 series in particular, one could reasonably deduce that the F15 was designed specifically to work in it: https://www.diyaudio.com/forums/att...nge-229b3dda-0dd7-4eb1-9c91-2a901167bee0-jpeg

With the early 825 cab's ~12.56 ft^3 back chamber/~62 Hz Fb [the 828 is a bit smaller due to blocked off horn flares], then tuned lower or just made somewhat aperiodic even its super high Qt probably would pose no problems, further making me wonder if this is [one of] the prime performance goals.