Everything is relative.
He apparently thought so.
But that it was 10.2
10.3 might sound better.
He apparently thought so.
But that it was 10.2
10.3 might sound better.
@Wil_NL, As I see if you were stick a Mic to the bass port of the Sibelius you will see usable low frequency of around 36Hz (as measured by Pearl). This information will allow you to tune your clone right up to around 100Hz. Interesting to see how your clone measures later.
For the driver side, beyond 100Hz, with box effects negligible as I understand it, any measurements may not help much as your drivers 10.2 or 10.3 are different from that of the Sibelius.,so best to tune to your liking with your clone. And since you have heard the Sibelius you can make comparisons as to how close your efforts have achieved …
For the driver side, beyond 100Hz, with box effects negligible as I understand it, any measurements may not help much as your drivers 10.2 or 10.3 are different from that of the Sibelius.,so best to tune to your liking with your clone. And since you have heard the Sibelius you can make comparisons as to how close your efforts have achieved …
Off course it did sound awful 😅
I do understand that statement, but to be fair, I don’t believe it
They're totally different drivers; MAOP11.2 is based on Pluvia 11 with a rather different spec. to the Alpair 10 based unit.
As regards the Sibelius being a small scale, almost bespoke, commercial product using a single fullrange driver that has attracted sufficient attention to inspire emulation by DIYers, I can’t help but be reminded and bemused by the adventures some of us here had with a certain small “Horn”, and its self proclaimed Red Necked Jackal progenitor back in the day.
Time for Dave and Scott to flesh out some details from their prospectives, if they dare. 😵
Suffice to say, the entire FH project had an interesting genesis, and the internet never forgets.
Harley could hardly be critiqued for wanting to keep details of his design close to the vest, but I’d be surprised if any sincere discussions with him weren’t be far more civil than those with our friend from SC.
Time for Dave and Scott to flesh out some details from their prospectives, if they dare. 😵
Suffice to say, the entire FH project had an interesting genesis, and the internet never forgets.
Harley could hardly be critiqued for wanting to keep details of his design close to the vest, but I’d be surprised if any sincere discussions with him weren’t be far more civil than those with our friend from SC.
Yikes, my normal attempts at carefully edited verbosity apparently went amok; I blame another day in paradise (Bermuda) with our kids and almost intolerably adorable grandson* for any such oversights the past few days.
‘be’ should be excised from the last sentence in post 1009 above.
Cheers to all from Devonshire Parish.
*your honor, the defence rests
‘be’ should be excised from the last sentence in post 1009 above.
Cheers to all from Devonshire Parish.
*your honor, the defence rests
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I think I sold my 10.2 Pensils for $500-600 a few years ago. Should have listed them as a Sibelius clone and gotten more for them. Still the best speakers I built. YouTube served me up a review of the Sibelius tonight and I was laughing all the way through it, like dude I was here 10-12 years ago, where were you? The reviewer was also over selling it a bit.
Great design guys, I miss them, but I don’t have the room for them anymore. My uFonkens with a sub have been filling the void but I’ve got the itch to build again.
Great design guys, I miss them, but I don’t have the room for them anymore. My uFonkens with a sub have been filling the void but I’ve got the itch to build again.
Running in the 10.2 and 10.3 drivers for the Sibelius cabinet as adviced by Markaudio:
1 - First 100 hours - low volume music only. The music should be general/vocals with modest bass. Please don't use any artificial and/or single tone signal signals this risks creating a memory patten in the outer 7 to 10 micron cone substrate. You can run the drivers in free air or near free air, but pay attention to the physical movement, the driver's power-train should not move more than 1mm.
2 - From 100 hours to 300 hours, gradually increase the load to normal listening levels. Typically and depending on room size, the volumes should be around low 80's dB near constant loads with peak loads not exceeding 86dB. For those without any SPL measuring equipment, set your system to moderate listening levels. You should be able to hold a conversation without raising your voice while the drivers are being run.
3 - From 300 hours out, the driver's power-train will enter its optimal load phase on its suspensions. Markaudio driver suspensions are critical components as they have to cope with long-throw demands of the cone/coil. I recommend some care from 300 to 500 hours as fully optimised suspensions will give you many years of reliable service life. Bass loads are available but go a little easy on the volume until passed 500 hours.
Remember fellas, Markaudio drivers are "long throw" light load units. They will give you allot of wide usable band width but they aren't designed for near constant maxed volume "rock un roll". The latest models have built-in arrestors to help avoid damage from accidental over-load, so this helps but its not a replacement for commence sense operation of these types of drivers, be they Markaudio or other full-rangers.
1 - First 100 hours - low volume music only. The music should be general/vocals with modest bass. Please don't use any artificial and/or single tone signal signals this risks creating a memory patten in the outer 7 to 10 micron cone substrate. You can run the drivers in free air or near free air, but pay attention to the physical movement, the driver's power-train should not move more than 1mm.
2 - From 100 hours to 300 hours, gradually increase the load to normal listening levels. Typically and depending on room size, the volumes should be around low 80's dB near constant loads with peak loads not exceeding 86dB. For those without any SPL measuring equipment, set your system to moderate listening levels. You should be able to hold a conversation without raising your voice while the drivers are being run.
3 - From 300 hours out, the driver's power-train will enter its optimal load phase on its suspensions. Markaudio driver suspensions are critical components as they have to cope with long-throw demands of the cone/coil. I recommend some care from 300 to 500 hours as fully optimised suspensions will give you many years of reliable service life. Bass loads are available but go a little easy on the volume until passed 500 hours.
Remember fellas, Markaudio drivers are "long throw" light load units. They will give you allot of wide usable band width but they aren't designed for near constant maxed volume "rock un roll". The latest models have built-in arrestors to help avoid damage from accidental over-load, so this helps but its not a replacement for commence sense operation of these types of drivers, be they Markaudio or other full-rangers.
Attachments
Any news on a Alpair 10.3 replacement? They to be going out of stock, and I'm torn on whether to pick up a pair, or wait in case Mark has something new, and potentially better in the works.
Pretty sure I've never heard a stock untreated A10.3, only drivers Enabled by Dave. The 11MS drivers I heard years ago were pretty close (at least to my tired old ears) to the treated 10.3 drivers. I think they would be a good alternative when the A10.3 disappear.
jeff
I have my Sibelius clones ready and can reveal that the Alpair 10 series and the Sibelius TQWT cabinet design are perfectly matched. So if you want to make a Sibelius clone, you must also use the A10 series as a driver. If you want to use a different driver, it is better to use a TQWT cabinet that matches it.
A friend has printed the magnetic protective grilles with his 3D printer. I heard that Pearl Acoustics also has these in their range.
A friend has printed the magnetic protective grilles with his 3D printer. I heard that Pearl Acoustics also has these in their range.
@Chemarcelo Thanks for the offer, I'll reach out if I decide to go forward with the 10.3
I assume the folks on this thread are as knowledgable as any about the MA line, maybe someone can help me understand why the 10.3 would be terminated. It was my understanding that it was one of the most popular MA drivers, and regarded slightly better than the 11MS.
I assume the folks on this thread are as knowledgable as any about the MA line, maybe someone can help me understand why the 10.3 would be terminated. It was my understanding that it was one of the most popular MA drivers, and regarded slightly better than the 11MS.