I have a pair of Fane 12-250TC's in a sealed cabinet and they sound great.
The only criticism I have is the Fane 15-300TC has better low end.
Member
Joined 2009
Paid Member
I have the 2 by 12-250TC in a sealed box.
The 15-300TC is in a W bin.
The 300 has better bass.
Hi Scott, I always follow your posts with interest, even if I have little technical knowledge. I'd like to do your project but I have 15-300TC. Do we need to make changes? I would be grateful if you could give me directions.
SubSoniks is using the 12-250TC with melamine foam lenses sandwiched between metal grills, I will borrow some inspiration from that on my vacation project.
Edit:
Mauri99, if you're using the 15-300TC solo, then look at Ivo's stuff in the 15" FR thread, just a few pages back.
Last edited:
Ok so I also ordered a 12-250TC
It arrived today, Just had a first listening, no baffle just on the table.
Now this is an interesting speaker....
Nice highs, not harsh like other full ranges.
Very nice mids.
The vocals......so natural.
I was going to use them for an allround PA cab with build in amplifier. Mainly for when I play keyboard in a larger room.
But I think it would work very well for vocals as well. Small PA etc....You don't always need extreme subs..... sometimes the only thing that needs to be amplified is the Vocal.
I wonder how the lowend is gonna sound once it is in a box. I want to go as portable as possible but don't wan't to sacrifice to much. Was thinking around 40L closed box with a lot of damping material inside.
Or should I go ported?
It arrived today, Just had a first listening, no baffle just on the table.
Now this is an interesting speaker....
Nice highs, not harsh like other full ranges.
Very nice mids.
The vocals......so natural.I was going to use them for an allround PA cab with build in amplifier. Mainly for when I play keyboard in a larger room.
But I think it would work very well for vocals as well. Small PA etc....You don't always need extreme subs..... sometimes the only thing that needs to be amplified is the Vocal.
I wonder how the lowend is gonna sound once it is in a box. I want to go as portable as possible but don't wan't to sacrifice to much. Was thinking around 40L closed box with a lot of damping material inside.
Or should I go ported?
Hello there, and welcome to the club!
It is interesting how this thing works without much design effort. I dare say it has changed the way I listen to (recorded) music.
Scottmoose has designed a reflex box for the 12-250TC, but it's huge. See this post: New 12" Full-Range: Fane 12-250TC
Enjoy!
Nice design but a little bit to big....
I tried modeling some things.
When I use 50L in a closed box there is a little peaking around 100Hz, Group delay looks very nice but Displacement can get high....
If I use the same 50L with a reflex tuned around 70Hz there will be a big peak.
But then again I was thinking to make the speaker active so I could easely add some Active EQ to tame the peak and add a highpass around 50Hz or something
Group delay still looks decent. Benefit is that you can get some lowend without having displacement troubles.
50L is good portable speaker I think
I tried modeling some things.
When I use 50L in a closed box there is a little peaking around 100Hz, Group delay looks very nice but Displacement can get high....
If I use the same 50L with a reflex tuned around 70Hz there will be a big peak.
But then again I was thinking to make the speaker active so I could easely add some Active EQ to tame the peak and add a highpass around 50Hz or something
Group delay still looks decent. Benefit is that you can get some lowend without having displacement troubles.
50L is good portable speaker I think
Member
Joined 2009
Paid Member
not too big at all, given that this is a 12" driver the box needs to be in proportion - I think Scott's design would look nice on a low stand, somewhat of a traditional appearance. You want to have enough wood to get decent bass. Now I'm tempted - but the FR just looks so ragged. I recently reviewed information on a Sonido driver and the FR looks pretty good.
That's a good idea, thank you! I was thinking of a closed box, but this looks much better. I took it further with HornResponse and reduced it to 25 listers, 100Hz tuned, then active EQd for a good response down to 100Hz (-6dB). Group delay is 8,4ms there.
HP is 85Hz 24dB Butterworth, EQ 130Hz -11dB Q1,8
That in a small-ish floorstander, and subs below...Attachments
Last edited:
It will probably be just large enough to house the driver, possibly a cube.
I was just looking back at Scott's draings and i realized the proportions on the drawing he provided were a bit misleading (to be totally fair Scott has stated clearly that they were not to scale in any way, so it is only my neglecting to read the numbers on the side that had me not realizing its size until now). In case anyone is curious, here is a side-by-side of the Pensil 10p (i used them as comparison as i have a pair in my living room so i know how big they are). Huge is the right word That said, if i had the right room for it i would definitely build it...
That said, if i had the right room for it i would definitely build it...Attachments
Yes, my apologies, I have no CAD skills at all, and I didn't have time to get the old ruler out with Windows Paint (old version) to approximate the proportions more thoroughly. Many thanks for the comparison above, gives a better comparative idea. TBH, acoustically speaking, that box isn't huge, although physically larger than most people are willing to put up with these days, unlike the '60s when it would have been relatively par for the course for a hifi fan. Different times. I suppose I should add that I don't personally like this driver. No reflection on Fane at all, I'm an admirer of their products / engineering. It just isn't what I'd use for home audio. Ideal for its intended purpose, but the upper mids & top end melt my ears, even well off-axis & with amplifiers & wire that don't exactly meet the definition of 'aggressive'. YMMV as always; we all of us have different requirements & conditions.
Be that as it may, as an observation, I'd be a bit wary of dropping Vb to 25 litres with the Fane, even with active EQ. There are all kinds of compression effects & potential internal reflections that can spoil your day by mass-loading the moving components under dynamic load conditions. You may get away with it, but it's something to keep in mind. Granted, I'm a brontosaurus.
Be that as it may, as an observation, I'd be a bit wary of dropping Vb to 25 litres with the Fane, even with active EQ. There are all kinds of compression effects & potential internal reflections that can spoil your day by mass-loading the moving components under dynamic load conditions. You may get away with it, but it's something to keep in mind. Granted, I'm a brontosaurus.
Attachments
Last edited:
What I simulated is very small, but possible. A small floorstander, 900mm high, 320 wide, and 200 deep with trapezoid shape has about that volume and can house that driver. It may be better to make some more room around the driver for more damping material.
You can always add bracing, though...
Attachments
Agreed, this 25 liters is only a simulation, I merely wanted to show myself how much volume would be required to get down to 80...100Hz.
There are many cone midranges and tweeters with closed back, like a regular steel basket but with no openings, so my puny example here may be even not as bad as these.
Without other means of EQ? I don't know the 12" Fane, only the 15". It is bright and blowtorchy unfiltered, but perfectly fine with selective and precise EQ. It doesn't do much wrong, it doesn't distort or colour at the bright frequencies, they are just too loud. Probably a similar story with the 12" driver.
I consulted my wife about some mathematics, which gave me enough ideas to create a spreadsheet for designing derivatives of the Voigt Home Constructors' Cornerhorn. That should kill/balance out the rising treble...
Might be worse...I just revamped an old three-way with a plastic pot fitted tightly to the 4.5"/11 cm midrange with an enclosure of the same volume but which allows for an inch/2.54cm of damping close to the diaphragm, where there was none before. Big improvement. Internal reflections in the midrange are an issue.