Need help identifying MarkAudio drivers

[a3cervo]

Hi everyone!

As the title says, I need help in identifying what exact model these MarkAudio drivers are. The owner said they are prototype MA drivers hence the absence of markings/branding at the back.

Thanks and regards,
Anton

 

[Scottmoose]

You don't provide any dimensions, but they appear to be either 1st generation Alpair 5 or Alpair 6. The former had a 100mm basket diameter, the latter 114mm.

 

[a3cervo]

Hi Scott. I don’t have the drivers on hand,he just sent me the pics via email. I’ve asked him to measure the diameter. Will post his reply here once available.

Thanks for the help,appreciate it.

Regards,
Anton

 

[mondogenerator]

They look rather like Alpair 5 Grey the original model (I have just sold mine!)

 

[Scottmoose]

That would be the most likely option; I'm not sure the 6 was made with a grey cone, although OEM units existed.

 

[chrisb]

And the only 6 I can recall prior to current was probably 10yrs ago? and had a rectangular frame that would have made for some tasty line arrays.

 

[grahamgraham]

Strassacker: Loudspeaker, Coaxial speakers, Driver, Tweeter, Mids, Woofer, Subwoofer, Components Half way down the page.

What these guys said. Doesn't seem to be a retail Alpair 6 in grey.

 

[Scottmoose]

There was, but it was the square basket version. They may have produced an OEM unit that dropped the grey cone in the circular basket, but if so, it wasn't a retail model. It's more likely to be a 1st generation Alpair 5.

 

[a3cervo]

First generation Alpair 5 it is then? Here’s another photo from the owner with a tape measure for reference.

I appreciate the help guys, thanks!

 

[Scottmoose]

No. The Alpair 5 basket was only 100mm diameter; according to that tape measure it's 124mm diameter. That makes it a first generation CHR-70. That's 100%; it's the only driver they produced with that basket diameter and that cone type.

 

[planet10]

That makes it a first generation CHR-70

It could be a 2nd gen CHR-70 as well. They fit pretty much the same boxes.

How that driver got into the wild with another maker’s label would be an interesting story.

How much is being asked for these drivers? I still have 2 pair of EnABLed CHR70 gen 1 (both for sale, but not here).

dave

 

[Scottmoose]

Good call, Dave. The series 2 units had a similar cone profile but went to a slightly lighter brushed aluminium finish. Eyeballing the photographs above, it looks lighter than I first thought. And the series 2 drivers were rated at 20w compared to the 22w of the original. The label looks like it says 20w to me, so that's probably as conclusive as we're likely to get. So much for my 'that's 100%' above. I'll take a leaf out of Dobby's book and iron my hands later.

 

[a3cervo]

Hi Dave,

It isn't for sale, just helping out a fellow countryman with his plan to build new enclosures for them. I decided to seek help here since I don't have any idea on the exact model and he isn't a member here.

He's also not sure how they ended up with different marking/branding since he got them built as bookshelves speakers with dual drivers per enclosure.

Thanks!

It could be a 2nd gen CHR-70 as well. They fit pretty much the same boxes.

How that driver got into the wild with another maker’s label would be an interesting story.

How much is being asked for these drivers? I still have 2 pair of EnABLed CHR70 gen 1 (both for sale, but not here).

dave

 

[a3cervo]

Thanks again Scott for the help.

No. The Alpair 5 basket was only 100mm diameter; according to that tape measure it's 124mm diameter. That makes it a first generation CHR-70. That's 100%; it's the only driver they produced with that basket diameter and that cone type.

Good call, Dave. The series 2 units had a similar cone profile but went to a slightly lighter brushed aluminium finish. Eyeballing the photographs above, it looks lighter than I first thought. And the series 2 drivers were rated at 20w compared to the 22w of the original. The label looks like it says 20w to me, so that's probably as conclusive as we're likely to get. So much for my 'that's 100%' above. I'll take a leaf out of Dobby's book and iron my hands later.