either that or multiple projects with the budget series - between those 2 choices, does anybody lose?
I've heard both the CHR70 and Alpair 6, in similar (milli-) sized enclosures, and while the latter is unquestionably more refined in many areas, I think Mark's ability to get even near the same level of performance at the CHR70 (or paper cone EL70), speaks volumes as to his skills. Lots more good things to come, no doubt.
Dave & I had a short session this afternoon with 3 models of Mark's drivers (CHR & EL70, Alpair 6), as well as the Maple-nabled 127's, and my new Vaughn Audio custom EL34 amp. They certainly didn't all deliver the same levels of detail or soundstage presentation, and I could see how some might prefer the Marks (particularly the EL70) to the Fostex, but I wouldn't consider them an upgrade.
disclosure - all of the drivers except the Alpair 6 were EnAbled, and the paper cone drivers (EL70 and FE127E) were in the prime sized Fonken enclosure, while the metal cones were in the smaller "milli" size boxes (sealed for the CHR and vented for the A-6)
Not having any experience with the drivers Mark builds, I can only hope for even more information depth than the Fe 127 eN's provide. Everything that is there is beautifully rendered. However, we are not at the last bit of refinement nor the last level of detail , low level coherence or internal gradient to notes and transients. First rate music though!
Have those pesky OPT's settled down?
Bud
Have those pesky OPT's settled down?
Bud
Well, I ran it for about 72hrs straight with KPLU on the radio before my first serious listening session, by which time it was sounding very sweet.
I've yet been able to find any flaw in the overall sound of the amp, which squeezes more detail, harmonic richness and bass extension from the 127s than I've heard in my system to date.
a longer wait than I would have liked, but color me happy
I also showed it in another thread, but I thought I list it here as well, a TQWT floorstander with the CHR70: the Torretta.
design by RumoH Zelfbouw Luidsprekers
It does not need any filter, so full range pure music
here is the plan:
design by RumoH Zelfbouw Luidsprekers
It does not need any filter, so full range pure music
here is the plan:
Banned
Joined 2002
If you haven't heard the CHR70 or Alpair 5 or 6's, you might find you don't need a tweeter, although the smaller drivers could definitely benefit from woofers.
Banned
Joined 2002
Thanks chris,
id like a 5" - 6" driver tho, and my tweeter on top, or in the cabinet really close to the top.The last set of Fostex i listened to i really like, however I had to teach my self to sit still and sit in the exact spot for the driver to sound good, as the ( highs ) were projected in a certain degree, so thus adding a tweeter for me helped.
Hi
another type of enclosure for the CHR70 (BR 8 liter):
look inside (before damping wool)
Inside:
13cmx24cmx28cm (high) about 8,7liters
Minus BR-Chanel etc. it is netto 8 Liter
BR-Channel: 13cmx1,3cm, and 16m long.
Runs down to 50hz, needs lot of damping wool (for BR), all wall covered with "damping10" (felt 10mm)
without any BSC ... just pur music
Try it wtith LINN Classic Music (old stereo-version) LINN K20,
works fine.
another type of enclosure for the CHR70 (BR 8 liter):
An externally hosted image should be here but it was not working when we last tested it.
look inside (before damping wool)
An externally hosted image should be here but it was not working when we last tested it.
Inside:
13cmx24cmx28cm (high) about 8,7liters
Minus BR-Chanel etc. it is netto 8 Liter
BR-Channel: 13cmx1,3cm, and 16m long.
Runs down to 50hz, needs lot of damping wool (for BR), all wall covered with "damping10" (felt 10mm)
without any BSC ... just pur music
Try it wtith LINN Classic Music (old stereo-version) LINN K20,
works fine.
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thanks !
here is a simulation from ajhorn:
An externally hosted image should be here but it was not working when we last tested it.
on first view about 5bd "to much" in the bass.....
this kompensates the baffle step very well.
nice little driver...
Hi
yes, thats my own design.
here is a description and plans:
http://img130.yfrog.com/i/chr70istmasboxtext.pdf/
Allthough its is in german, the simulation-grafs, pics and the plans will speak for itself.
try it... best by interms of "money for value", I agree with ithe discription in this thread:
http://www.diyaudio.com/forums/full...sions-question-alpair7-alpair12-owners-2.html
try this little drive and hve fun !
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