Any A12P owners out there? - Page 4

planet10 · 30th October 2012, 02:30 AM

Quote:

Originally Posted by soundaatma

... but for BLH as is recommended on the Madisound site.

That would be for the FE166, FE167 is designed for vented enclosures.

dave

soundaatma · 30th October 2012, 02:43 AM

Quote:

Originally Posted by planet10

That would be for the FE166, FE167 is designed for vented enclosures.

dave

Thanks for pointing out the typo Dave. I was always referring to the Fe166EN. The FE167 does not even come up when searched on the Madisound site. I have edited my previous post

Scottmoose · 09:15 AM

The FE167E is from the old FExxxE model range, and has been defunct for several years. The 6 1/2in Fostex units in independent measurements frequenly come out at a lower efficiency than the manufacturer claims, placing them at around 1/2dB - 1dB greater sensitivity than the A12P for a given input. There isn't a great deal in it in practice, if anything, and since the A12P has substantially greater linear travel (however you like to measure it), it can handle LF dynamic peaks more effectively than the Fostex. I've had both through here, and like both for different reasons, but the checks & balance sheet generally comes down in favour of the Alpair.

GM · 30th October 2012, 01:55 PM

Quote:

Originally Posted by planet10

That would be for the FE166, FE167 is designed for vented enclosures.

dave

It's designed to be either vented or BH loaded since these are two sides of the same 'coin'.

GM

Scottmoose · 30th October 2012, 02:27 PM

My fault for not being clearer on that earlier. Fostex had vented boxes in mind with the shielded units, but as you say, they can be used either way.

GM · 30th October 2012, 02:42 PM

Learn something new everyday, Never noticed on the spec sheet that it was shielded.

GM

Scottmoose · 30th October 2012, 03:26 PM

Yeah, presumably that's what did for the FExx7E range in general, what with the decline of CRT screens etc. I get the feeling more were bought for their higher Q than their shielding though.

Bob Brines · 30th October 2012, 03:27 PM

Right! The FE line was advertised as AV drivers. The advent of LED/LCD/plasma displays made shielding moot.

Bob

30th October 2012, 09:03 AM	#33
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	The FE167E is from the old FExxxE model range, and has been defunct for several years. The 6 1/2in Fostex units in independent measurements frequenly come out at a lower efficiency than the manufacturer claims, placing them at around 1/2dB - 1dB greater sensitivity than the A12P for a given input. There isn't a great deal in it in practice, if anything, and since the A12P has substantially greater linear travel (however you like to measure it), it can handle LF dynamic peaks more effectively than the Fostex. I've had both through here, and like both for different reasons, but the checks & balance sheet generally comes down in favour of the Alpair. Last edited by Scottmoose; 30th October 2012 at 09:15 AM.

30th October 2012, 02:42 PM	#36
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	Learn something new everyday, Never noticed on the spec sheet that it was shielded. GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

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30th October 2012, 02:27 PM	#35
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	My fault for not being clearer on that earlier. Fostex had vented boxes in mind with the shielded units, but as you say, they can be used either way.

30th October 2012, 03:26 PM	#37
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	Yeah, presumably that's what did for the FExx7E range in general, what with the decline of CRT screens etc. I get the feeling more were bought for their higher Q than their shielding though.

30th October 2012, 03:27 PM	#38
Bob Brines diyAudio Member Join Date: Jan 2003 Location: Hot Spring Village AR	Right! The FE line was advertised as AV drivers. The advent of LED/LCD/plasma displays made shielding moot. Bob