Chassis for Sachiko

Type25 · 8th July 2007, 09:44 AM

Hello,

I want to build an Sachiko. But which would be the best chassis for this cabinet (I don't like the fostex fe206e because of it's frame-style

).

So have searched for this alternatives:
Audio Nirvana Super 8 (maybe the cast frame)
Fostex FE206ES-R
Hemp FR810HQ
Lyeco LY802F
Supravox HP215RFT64

So, are these alternatives equal for the Sachiko or are there some "no goes"?

Thanks
Armin

Scottmoose · 8th July 2007, 07:02 PM

You are obviopusly a man of taste and decency.

OK, the Lyeco & Supravox are out -Q is too high for this cabinet. The Hemp is borderline, though again Q is a little high, and it wouldn't be my first choice.

The FE206ES-R works very well: there's already a pair of Sachiko's using them to good effect. And the Audio Nirvana Super8 cast-frame should work fine too. For myself, I never found the FE206E as unattractive as all that though...

Hope this helps
Scott

Type25 · 9th July 2007, 02:33 AM

... it helps (but I don't like the result). So I must build a blind/faceplate for the chassis.

Is only the Qts is relevant for the cabinet (<0,4)?

Thanks
Armin

Scottmoose · 9th July 2007, 07:40 AM

I thought you liked the ANS8 cast frame & 206ES-R? As I say, those will work fine. The FE208ESigma (you'd need to add a tweeter to that -the FT17 is a nice unit, and not particularly expensive) should do a decent job too.

Q is not the only factor, but it's one of the most significant ones. Vas and Re are also important. As a rule, the higher the Vas, the larger the cabinet you'll need. Re also affects the shape of the response.

Best
Scott

Type25 · 22nd July 2007, 04:53 PM

Hello,

so I had finished my Sachiko's with the Audio Nirvana Cast Frame

Greetings
Armin

francorovereto · 22nd July 2007, 10:13 PM

Very beautiful!

I' m beginning to build an identical project: AN super8 cast frame in an sachiko enclosure!!!!... but how it sound? Can you indicate me perks/flaws of this combination?

Thanks

Scottmoose · 23rd July 2007, 03:27 PM

Very nice indeed. How do you find they sound?

Best
Scott

francorovereto · 23rd July 2007, 03:52 PM

DOH!

Today I was in a wood store.... i asked for finnish birch plywood and they want 450 euros....

Definitely to much for my money. Sad, but true.

Anybody can say me wich kind of wood could I use for a good sonic performance at a more human cost?

(ps: I find mdf not so actrattive.... veneered, more cheap alternatives?)

Could I alternate birch with other wood in the same cabinet?

Thank anybody for answers

Scottmoose · 23rd July 2007, 05:14 PM

You could try a mixture of birch ply & ordinary, cheap chipboard (particleboard), with the ply for the side panels, and, if there's sufficient, the rear panel, and the chipboard for the rest. That should cut cost somewhat & work pretty well.

francorovereto · 23rd July 2007, 06:28 PM

That's could be an idea.... but the side/rear panels are big and I could save only a few money.

What's the result using mdf for side-rear panels (obviously less fashionable, but I must wait the day that I become rich!

)
and russian birch ply for baffle / horn panels?

BUT

I've read that mdf can sound harder and harsher.... (but particleboard is to horrible outside the cabinet!!)
Isn't true?

Ps:Thanks Scott

8th July 2007, 09:44 AM	#1
Type25 diyAudio Member Join Date: Jun 2006	Chassis for Sachiko Hello, I want to build an Sachiko. But which would be the best chassis for this cabinet (I don't like the fostex fe206e because of it's frame-style ). So have searched for this alternatives: Audio Nirvana Super 8 (maybe the cast frame) Fostex FE206ES-R Hemp FR810HQ Lyeco LY802F Supravox HP215RFT64 So, are these alternatives equal for the Sachiko or are there some "no goes"? Thanks Armin

22nd July 2007, 04:53 PM	#5
Type25 diyAudio Member Join Date: Jun 2006	finished Hello, so I had finished my Sachiko's with the Audio Nirvana Cast Frame Greetings Armin

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8th July 2007, 07:02 PM	#2
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	You are obviopusly a man of taste and decency. OK, the Lyeco & Supravox are out -Q is too high for this cabinet. The Hemp is borderline, though again Q is a little high, and it wouldn't be my first choice. The FE206ES-R works very well: there's already a pair of Sachiko's using them to good effect. And the Audio Nirvana Super8 cast-frame should work fine too. For myself, I never found the FE206E as unattractive as all that though... Hope this helps Scott

9th July 2007, 02:33 AM	#3
Type25 diyAudio Member Join Date: Jun 2006	... it helps (but I don't like the result). So I must build a blind/faceplate for the chassis. Is only the Qts is relevant for the cabinet (<0,4)? Thanks Armin

9th July 2007, 07:40 AM	#4
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	I thought you liked the ANS8 cast frame & 206ES-R? As I say, those will work fine. The FE208ESigma (you'd need to add a tweeter to that -the FT17 is a nice unit, and not particularly expensive) should do a decent job too. Q is not the only factor, but it's one of the most significant ones. Vas and Re are also important. As a rule, the higher the Vas, the larger the cabinet you'll need. Re also affects the shape of the response. Best Scott

22nd July 2007, 10:13 PM	#6
francorovereto diyAudio Member Join Date: Jul 2007	Very beautiful! I' m beginning to build an identical project: AN super8 cast frame in an sachiko enclosure!!!!... but how it sound? Can you indicate me perks/flaws of this combination? Thanks

23rd July 2007, 03:27 PM	#7
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	Very nice indeed. How do you find they sound? Best Scott

23rd July 2007, 03:52 PM	#8
francorovereto diyAudio Member Join Date: Jul 2007	DOH! Today I was in a wood store.... i asked for finnish birch plywood and they want 450 euros.... Definitely to much for my money. Sad, but true. Anybody can say me wich kind of wood could I use for a good sonic performance at a more human cost? (ps: I find mdf not so actrattive.... veneered, more cheap alternatives?) Could I alternate birch with other wood in the same cabinet? Thank anybody for answers

23rd July 2007, 05:14 PM	#9
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	You could try a mixture of birch ply & ordinary, cheap chipboard (particleboard), with the ply for the side panels, and, if there's sufficient, the rear panel, and the chipboard for the rest. That should cut cost somewhat & work pretty well.

23rd July 2007, 06:28 PM	#10
francorovereto diyAudio Member Join Date: Jul 2007	That's could be an idea.... but the side/rear panels are big and I could save only a few money. What's the result using mdf for side-rear panels (obviously less fashionable, but I must wait the day that I become rich! ) and russian birch ply for baffle / horn panels? BUT I've read that mdf can sound harder and harsher.... (but particleboard is to horrible outside the cabinet!!) Isn't true? Ps:Thanks Scott

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