Is this as good as it gets in 4 " Full range ?

[planet10]

they are only 125 watts per channel into 8 ohms

That is a whole whack of power. For your ap 10w is lots.

dave

 

[Bill poster]

marginally bigger cones but v similar overall diameter to MA

Fostex FX120
http://www.oregondv.com/Fostex36.gif
Fountek FR135
http://www.spectrumaudio.de/breit/fountek/fountekFR135EX_fg.jpg

 

[ani101]

CHR-70 in FAST design with dual ND-105s

Hi

Just posting a build with the CHR-70 (sealed) with helper Woofers.

FAST BUILD - CHR-70 + Dual ND105-8

Thanks
Ani

 

[sdep777]

Those Mark audio drivers look like they are top shelf units ...very nice build !

So how does it sound and what type music are you listening to or maybe a test cd ?

 

[sdep777]

(PS. i hope you are talking Smith & Larson woofertester?)

No never heard of them till now using the one from Dayton

 

[ani101]

Those Mark audio drivers look like they are top shelf units ...very nice build !

So how does it sound and what type music are you listening to or maybe a test cd ?

Actually they are the CHR-70 Mark Audio drivers - sealed in a 4L compartment. The bass is provided by 2 ND-105 woofers in around 25Liters with a 2x2 port. the Mark Audio plays everything till about 300Hz, where it crosses over to the ND105s.

F3 is around 41hz i think. I play all sorts of music on it. CDs and HD recording as well as Blu-ray movies sound really good. Youtube - not so much once you know what it can do with good quality recordings!

follow this thread for the design discussion: FAST build - need suggestions - Page 3

the next page has the crossover schematics.

 

[ani101]

This was taken to Dakota DIY. the house tracks used are given here:
DakotaDIY 2014 - Page 16

 

[planet10]

No never heard of them till now using the one from Dayton

The Dayton is a poor imitation.

dave

 

[sdep777]

glad to know that will have to order one also looking at True RTA Software namely the 1/3 octave for fun learning and rooms.

Should just ask what test equipment I would need to get serious, and what software to get, I have LspCAD 6 professional . I don't know how to run it yet but I will

and been using this

Speaker Box Design Example