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FR 4-6.5" comparison: 4FE32, Alpair-10P, SPH-60X, W4-1337SDF, FE166En
FR 4-6.5" comparison: 4FE32, Alpair-10P, SPH-60X, W4-1337SDF, FE166En
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Old 13th September 2017, 12:31 PM   #1
zgtc is offline zgtc
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Default FR 4-6.5" comparison: 4FE32, Alpair-10P, SPH-60X, W4-1337SDF, FE166En

Hi,

I want to build a ported BR box up to 7 maybe 7.5 liters, as simple as possible. Yes, I know it's small and I might sacrifice a bit of low end. Still not sure if FR or 2way, but doubt now is for the main driver. These will output sound from 2xModulus-86 by tomchr, but most likely using the SMPS86, so capped at 28W per channel. Room size: 4.5 x 3.5m, o around 15 sq m, but an open space (total size might be 21 sq m). Room height 2.5m

I've been looking for options and I like these:

Faital Pro 4FE32 (91 dB),
Markaudio Alpair-10P (89.6 dB),
Monacor/Celestion SPH-60X (89 dB).
Tang Band W4-1337SDF (89 dB),
Fostex FE166En (94 dB),

Anyone has listened to these can share a comparative opinion? Any other small-yet-good alternative?

Thank you

Note: this thread deviated from here but we agreed it was better to start a fresh one with more specific question (my approach changed with the replies).

Last edited by zgtc; 13th September 2017 at 08:19 PM. Reason: adding info about room size
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Old 13th September 2017, 01:34 PM   #2
xrk971 is online now xrk971  United States
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FR 4-6.5" comparison: 4FE32, Alpair-10P, SPH-60X, W4-1337SDF, FE166En
If you have a mod86, you have lots of power so why limit yourself to high sensitivity drivers? I have used the bamboo cone variant of the titanium Tang Band and the 3.5in version of the 4FE35 so familiar with their sound and build quality. The MA and Fostex will have less than flat response and FE166eN does not have enough xmax for an effective bass reflex. Fostex route for BR would be FF105WK which is more neutral but a slight peak around 5kHz IIRC. I have the FF105WK and can recommend them as well. I don't have any experience with Monacor. Build quality on Tang Band is very nice and probably the best looking if that's important. The 4FE35 is a good choice for smooth sound and high sensitivity with flat neutral response and no peaky response surprises. It's very industrial looking though - not suitable for a high visibility speaker with an open face. Needs grill cloth.

Which is best for bass reflex and decent extension? The Tang Band should work very well with combination of great looks and deep extension along with highs. Second choice would be FF105WK.
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Old 13th September 2017, 05:55 PM   #3
chrisb is offline chrisb
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Having heard only two of the cited list, I'd nominate the A10P, but if you're truly limited to 7-7.5 liters, you might want to consider a slightly smaller driver - such as either the MA 7cm class ( A7.3 or Pluvia7), or the 105WK.

Hoffman strikes again!

As X noted, the mod86 has sufficient power for the slightly lower sensitivity the smaller drivers may bring to the table, and if it's safe to assume that your enclosure size constraint is due to room size, that both the lower output and reduced LF extension might be moot.
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Old 13th September 2017, 06:32 PM   #4
zgtc is offline zgtc
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Sorry everyone, didn't notice my post lacked some crucial info. Mod86 will be capped at 28W due to the power supply. I just edited first post.

Quote:
Originally Posted by xrk971 View Post
If you have a mod86, you have lots of power so why limit yourself to high sensitivity drivers?
Quote:
Originally Posted by chrisb View Post
As X noted, the mod86 has sufficient power for the slightly lower sensitivity the smaller drivers may bring to the table, and if it's safe to assume that your enclosure size constraint is due to room size, that both the lower output and reduced LF extension might be moot.
Sorry, see just above. And yes, enclosure size dictated by room size, ... and wife

Quote:
Originally Posted by xrk971 View Post
I have used the bamboo cone variant of the titanium Tang Band and the 3.5in version of the 4FE35 so familiar with their sound and build quality. The MA and Fostex will have less than flat response and FE166eN does not have enough xmax for an effective bass reflex. Fostex route for BR would be FF105WK which is more neutral but a slight peak around 5kHz IIRC. I have the FF105WK and can recommend them as well. I don't have any experience with Monacor. Build quality on Tang Band is very nice and probably the best looking if that's important. The 4FE35 is a good choice for smooth sound and high sensitivity with flat neutral response and no peaky response surprises. It's very industrial looking though - not suitable for a high visibility speaker with an open face. Needs grill cloth.

Which is best for bass reflex and decent extension? The Tang Band should work very well with combination of great looks and deep extension along with highs. Second choice would be FF105WK.
Great info on all those drivers. I don't mind the industrial looking anyway. Will have a look at the FF105WK but I think it was less efficient, see last note below.

Quote:
Originally Posted by chrisb View Post
Having heard only two of the cited list, I'd nominate the A10P, but if you're truly limited to 7-7.5 liters, you might want to consider a slightly smaller driver - such as either the MA 7cm class ( A7.3 or Pluvia7), or the 105WK.
Taking note on the A7.3/Pluvia. As with the FF105WK I think they're less efficient though?

Quote:
Originally Posted by chrisb View Post
Hoffman strikes again!
Maybe I just need to be less "demanding" on SPL dB. The idea about getting "efficient" drivers was to compensate "lack of power" (even though 28W is quite enough I guess).

Thank you all and again, sorry for misleading first post.
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Old 13th September 2017, 06:41 PM   #5
IslandPink is offline IslandPink  United Kingdom
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I'm interested in results on the 4FE32 . Looks good on paper ...
The FF105Wk is pretty nice up to the point a nasty spike around 7 or 7.5k comes in. I have found this driver frustrating, relative to the FE103e. The 105 has a better midrange but that HF spike is more aggressive than anything the 103 has.
The best of all the Fostex drivers I have heard ( and that's most of them ) in my opinion is the FX120. I have just bought four for an OB project ( 2x FX120 each side ). They are getting hard to source, though.
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Old 13th September 2017, 06:52 PM   #6
zman01 is offline zman01  Bangladesh
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FR 4-6.5" comparison: 4FE32, Alpair-10P, SPH-60X, W4-1337SDF, FE166En
zgtc,

I use a Mod-86 too; the Connex SMPS I am using gives ~25V, so getting probably around 28 watts also. Has enough juice to drive my speakers to satisfying levels (for me) - I am using a 2 way speaker with sensitivity in the low 80s.
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Old 13th September 2017, 06:55 PM   #7
zgtc is offline zgtc
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Quote:
Originally Posted by IslandPink View Post
I'm interested in results on the 4FE32 . Looks good on paper ...
It does!

Quote:
Originally Posted by zman01 View Post
zgtc,

I use a Mod-86 too; the Connex SMPS I am using gives ~25V, so getting probably around 28 watts also. Has enough juice to drive my speakers to satisfying levels (for me) - I am using a 2 way speaker with sensitivity in the low 80s.
Good then! As I said maybe I'm just being too focused on "high-ish" SPL because of the reduced power and I should just get a nice little speaker without bothering too much.
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Old 13th September 2017, 06:59 PM   #8
planet10 is offline planet10  Canada
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FR 4-6.5" comparison: 4FE32, Alpair-10P, SPH-60X, W4-1337SDF, FE166En
Quote:
Originally Posted by zgtc View Post
Mod86 will be capped at 28W due to the power supply.
That is still sufficient power. For FF105wk and A10p we recommend a minimum 10w.

The peak in the upper range of the FF105wk can be ameriolated with a simple mod (2 coats of Zig 2-way glue at the junction of the cone/surround on the back of the cone)

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Old 13th September 2017, 07:06 PM   #9
zgtc is offline zgtc
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Quote:
Originally Posted by planet10 View Post
That is still sufficient power. For FF105wk and A10p we recommend a minimum 10w.
so, i should not be aiming necessarily to 90-ish SPL but better focus on a driver that has a nice response in small enclosure, right?
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Old 13th September 2017, 07:10 PM   #10
planet10 is offline planet10  Canada
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FR 4-6.5" comparison: 4FE32, Alpair-10P, SPH-60X, W4-1337SDF, FE166En
Yes, focus on sonics. Just as a reference point we have people happily using 2A3 SE amps wth A10p (2.5-3.5 w). I have had this kind of setup in my big room, somewhat limited by how high you can crank the levels, but still surprising.

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