New Markaudio Drivers

[Xovaan]

Hey everyone,

I was wondering if anyone could help do a sanity check for me-- I seem to have some crackling during female vocals, happening at volumes ranging from low to high in my right speaker (MAOP 11's). An example is in London Grammar - Hey Now, about 2:22 in:

Hey Now - song by London Grammar | Spotify

When testing on my headphones, I also seem to get the same crackle which relieves me a bit and makes me think it's just the recordings I'm listening to.

I did a sweeping frequency test and nothing came up, though I know sound waves can be complex.

Could anyone else check for me?

Thanks in advance!

 

[zman01]

Xovaan,

Listened to this track many times before, but never bothered about the crackles / noise... probably thought it's static being generated by those things in the video. Now that you mention it, there's something at 2:22 and other places too.

Btw, it's a pretty demanding track; keep an eye on the volume knob.

 

[RXV]

Wow! Looks like the new MAOP (7 and 11) drivers are now finally available in the west, via Madisound

Mark Audio MAOP-7 122mm Magnetic Arc Oxidized Full Range Matched Pair

Mark Audio MAOP-11 172m Magnetic Arc Oxidized Full Range Matched Pair

 

[Kev Tank]

I know the 7cm and 11cm sizes are standard, but after seeing the CHR90, I'm actually very hopeful to see Alpair 9 and Pluvia 9 sized drivers too! What I like about such a 9cm sized driver is the 15cm outer frame size which correspond to standard 5.25" midwoofers where our jigs are commonly set up for. I do know about the Alpair 10 of course, but the seeing that the 11 replaces the 10, a new intermediate 9 between the 7 and 11 would be great.

 

[alexrentier]

The crackle is sometimes not because of this track, my column pops often))) And this track agrees gives a crackle!

 

[svwolfpack]

Wow! Looks like the new MAOP (7 and 11) drivers are now finally available in the west, via Madisound

Mark Audio MAOP-7 122mm Magnetic Arc Oxidized Full Range Matched Pair

Mark Audio MAOP-11 172m Magnetic Arc Oxidized Full Range Matched Pair

It looks like they also have a MAOP-10 too. My question is: could I use the MAOP-10 in a CGR cabinet, and if so, should I use the 10P vent arrangement or the 10.3 arrangement?

 

[Scottmoose]

I know the 7cm and 11cm sizes are standard, but after seeing the CHR90, I'm actually very hopeful to see Alpair 9 and Pluvia 9 sized drivers too! What I like about such a 9cm sized driver is the 15cm outer frame size which correspond to standard 5.25" midwoofers where our jigs are commonly set up for. I do know about the Alpair 10 of course, but the seeing that the 11 replaces the 10, a new intermediate 9 between the 7 and 11 would be great.

As a minor note, the Alpair 11 does not actually replace the Alpair 10; the latter are continuing as long as people want to buy them.

 

[Scottmoose]

It looks like they also have a MAOP-10 too. My question is: could I use the MAOP-10 in a CGR cabinet, and if so, should I use the 10P vent arrangement or the 10.3 arrangement?

Dave will be able to confirm, & I'm currently away for my health & on a laptop so limited access to records, but the MAOP10 was historically based on the 10.2, so the 10.3 venting variation may end up working better.

 

[svwolfpack]

Thanks so much! Looks like there's also plans on frugalphile for the 10.2 driver, so perhaps that's the one to go with for the MAOP-10.

 

[planet10]

Link?

There is a CGR for the A10.2.

If MAOP is different a change in vent spacer is usually all that is needed.

dave

 

[svwolfpack]

Here's the driver: Mark Audio MAOP-10 164mm Magnetic Arc Oxidized Full Range Matched Pai

Which CGR design would you recommend for that? Thanks so much!

 

[planet10]

It falls between the 2. I’ll have to work up the change.

dave

 

[JoeyGS]

What's the difference in performance between a CGR and a FHXL if the same driver is used in both boxes, say the MAOP 10 or Alpair 10.3?

 

[planet10]

FHXL extract sthe most bottom out of the driver. CGR is much smaller, less bass extention but what there is is very articualte.

CGR needs to be carefully tuned, in FHXL the box dominates and the stuffing is used for tuning.

dave

 

[StevenZ]

Just purchased a pair of the MAOP 11. Are there any bookshelf enclosure designs that would work with this driver? Is this just a Pluvia 11 with MAOP process done? Would love to get cracking on building a box for them so any help on bookshelf enclosures is appreciated.

Cheers

 

[JoeyGS]

Thanks Dave.

The CGR plans indicates only the internal bracing and the lining of all internal walls inside the box. What can de done for tuning? Stuffing? Wall lining material?

FHXL extract sthe most bottom out of the driver. CGR is much smaller, less bass extention but what there is is very articualte.

CGR needs to be carefully tuned, in FHXL the box dominates and the stuffing is used for tuning.

dave

 

[Kev Tank]

As a minor note, the Alpair 11 does not actually replace the Alpair 10; the latter are continuing as long as people want to buy them.

Thanks for your correction of my errand presumption that the Alpair 11 replaces the Alpair 10. I suppose I came to such a conclusion mainly because I lose interest in the 10 after reading about the 11!

 

[planet10]

Thanks Dave.

The CGR plans indicates only the internal bracing and the lining of all internal walls inside the box. What can de done for tuning? Stuffing? Wall lining material?

miniOnkens are tuned by carefully adjusting the tuning. I will be looking at the MAOP 10 & 11 and coming back with appropriate vent changes.

dave

 

[planet10]

If you take the A10.3/A10p CGR and change the vent spacer to 84mm. This means A10 MAOP goes a bit lower.

https://frugal-phile.com/boxlib/P10free/CGR-103-p-maop-plan-290921.pdf

dave

 

[JoeyGS]

Thanks for the update, Dave.

Joey

If you take the A10.3/A10p CGR and change the vent spacer to 84mm. This means A10 MAOP goes a bit lower.

https://frugal-phile.com/boxlib/P10free/CGR-103-p-maop-plan-290921.pdf

dave