Your next extended range driver? Scan Speak Discovery 10F/4424G00

[ScottG]

Zaph|Audio

The only real disappointment for a driver of this size is that it's a 4 ohm unit. Everything else is per*T*.

Freq. Response:
http://www.zaphaudio.com/temp/Scan-S...5-30-45-60.gif

CSD:
http://www.zaphaudio.com/temp/Scan-S...424G00-CSD.gif

HD:
http://www.zaphaudio.com/temp/Scan-S...4424G00-HD.gif

[wintermute]

Looks very impressive for a high powered high quality 3 way project! I'm not sure it quite cuts it for a full range though... could perhaps act as the mid/high in a two way crossed around 300Hz though

this looks like it is the 8 ohm version --> http://www.scan-speak.dk/datasheet/pdf/10f-8424g00.pdf

Tony.

[ScottG]

Originally Posted by wintermute

..could perhaps act as the mid/high in a two way crossed around 300Hz though


Tony.

That was my thought. It's upper freq. response pretty much "blows away" just about any of the drivers posted here aspiring to "fullrange" status.

I think it would even be viable in a back-loaded horn to about 70 Hz or so.

[planet10]

Originally Posted by ScottG

It's upper freq. response pretty much "blows away" just about any of the drivers posted here aspiring to "fullrange" status.

Except for the FF85 and almost all the 2nd gen Mark Audio. Probably at least a few others.

Competition is a good thing. They are recognizing this is a valid market which can only be good.

dave

[ScottG]

Originally Posted by planet10

Except for the FF85 and almost all the 2nd gen Mark Audio. Probably at least a few others.


dave

I'm including those as well. At least *measurably*..

I also think the 8 ohm & 4 ohm units would do well with 1.5 config.. i.e. baffle step compensation with the 4 ohm driver (connected in series with the 8 ohm unit).

[Scottmoose]

That's a surprise -I thought now John was selling his own drivers he'd stopped reviewing other units. Looks to be a nice midrange.

For the above -not necessarily. It depends how & which measurements are taken, with what equipment & processing, what a driver is designed for, and how it is to be used. For there to be any real relevance, the drivers being compared need to be intended for the same purpose, measured in the same way, with the same equipment, and then the equivalent measures for each then employed for the purposes of comparison.

For e.g.; same driver looking slightly less impressive in the nearfield (courtesy of Mark K).

[Defo]

Originally Posted by ScottG

The only real disappointment for a driver of this size is that it's a 4 ohm unit.

There is an 8 ohm version two... 10F/8424G00

This is my measurement of the 8 ohm unit

[Joachim Gerhard]

I made a dipole with 3 ScanSpeak drivers. One 8 Ohm in the midlle and 2 4 Ohm at top and bottom. See my MPL thread. I think the treble response is just right because it compensates for the falling response on the side. I cross the speakers some centimeters before my ears. Ted Jordan gave a good explanation of this "Difuse Field" equalisation.
It improves 3 dimensional imaging and widens the sweetspot as a by effect.

[Joachim Gerhard]

Here are my on- and off-axis measurements on a baffle ( one unit ).

[Defo]

Originally Posted by planet10

Except for the FF85 and almost all the 2nd gen Mark Audio. Probably at least a few others.

Competition is a good thing. They are recognizing this is a valid market which can only be good.

dave

As far as I can see, most of the Mark Audio units has +/- 10 db wide banwidth ripples in response... Almost as bad as Lowthers Allthough not quite there yet.

An externally hosted image should be here but it is no longer accessible. Please upload images instead of linking to them to prevent this.

An externally hosted image should be here but it is no longer accessible. Please upload images instead of linking to them to prevent this.