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Old 25th December 2016, 02:41 AM   #71
zman01 is offline zman01  Bangladesh
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Join Date: Feb 2011
Location: Dhaka
Hugh,

Great for James - reached just in time!

Merry Christmas!
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Old 31st December 2016, 11:27 AM   #72
AKSA is offline AKSA  Australia
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Zia,

James have been listening to the Maya continuously since he got it up and running the next day, and he seems to like it......

Hugh
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Old 31st December 2016, 01:49 PM   #73
zman01 is offline zman01  Bangladesh
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Quote:
Originally Posted by AKSA View Post
Zia,

James have been listening to the Maya continuously since he got it up and running the next day, and he seems to like it......

Hugh
Not surprised Hugh... probably he loves it!

Happy New Year!
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Old 13th January 2017, 03:52 PM   #74
saf is offline saf
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Join Date: Sep 2009
Hi guys,

I have read praises about the Maya, claiming its a power beast, and i am currently thinking of it, to power a dificult pair of speakers (Amati Anniversario)

Click the image to open in full size.

This plot (property of Sterophile magazine by the way) shows that this particular speaker remains most of its audio band under 4 ohms with some phase shifts.

It is in fact a 3 ohm speaker most of the range, with also a combination of 3.8 ohms magnitude and 50 at 68Hz, a frequency where music can have considerable bass energy.

This suggests that in order to perform adequately a high current amplifier design would be a must, one that should be capable to double its power down to 3 ohms. This does not necessarily translate into a 1000W amp, but one that can provide high current with difficult loads.

What are your experiences / insights on this ?
I understand that Hugh may be the person to ask, but i am trusting all you other audio techs out there.

All the best,
Filipe
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Old 14th January 2017, 03:44 AM   #75
AKSA is offline AKSA  Australia
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Location: Melbourne, Australia
Felipe,

I believe this speaker would be easy for the Maya.
It will easily drive an ESL63 to high levels and that is close to 8R//2uF.
There is a huge phase margin on the Maya so reactive loads are accommodated easily with no hint of instability.

You mention current capacity. One of the outputs on the Maya is rated at 69A/480W, and the other is at 48A/462W. These are both around 0.05R Zout, and with around 30dB of feedback the drive is magnified by around 25 times taking account of the source resistors too, giving a Zout of 25 milliohms. With a 3R reactance, you would still be driving 99% of the amp output into the speaker and crossover, with minimal losses in the amp and no shortage of current. Theoretically you would need 21A plus 30% accounting for the reactance, say 28A total. This is well within the amp which uses a 64V rail.

That is a difficult speaker, not down to 1.8R from an old Apogee, but close.

Hugh
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www.aksaonline.com

Last edited by AKSA; 14th January 2017 at 03:51 AM.
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Old 14th January 2017, 09:46 AM   #76
saf is offline saf
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Hugh,

Those are some impressive specs.
It seems I will be needing some Maya goodness...

Expect an email from me soon
All the best

Filipe
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Old 14th February 2017, 12:32 PM   #77
Jens A. is offline Jens A.  Denmark
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Join Date: Dec 2009
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Default Listening to the Maya

Just wanted to chip in about the Maya, since I had the good fortune of listening to it for quite some time during my recent visit to Hugh's place.

Right from the start, it was very clear that the Maya is something special.

The first thing I noticed was the wonderful spatial information that it conveys.

But the Maya also has an exceptional clarity, and when it comes to pace and rhythm you don't really think about it, because it is just so right. And there is an effortlessness to the amp, even when playing very dynamic tracks (and I have to note that the Maya I listened to was a low power version - I cannot remember the details, but Hugh may be able pitch in). Not at any time was there any hint of distortion, even when driving the VSonics at high volume.

I'll just briefly mention that treble was very clear and airy without any hint of the sibilance you can get with some SS amps, midrange was open and detailed with very good speech recognition and understanding, and bass was powerful (but no overly so), yet very well controlled (although the very deep bass from organs etc. could not be judged, as the VSonics roll off around 40 Hz).

In conclusion, I find the Maya to be a very musical amp with lots of power potential, and yet nothing has been sacrificed in terms of sound quality - on the contrary! This is a fabulous amp!

If I could afford it, I would order two Mayas right away to replace the two NAKSA 80s currently in my multi-amped speaker system - guess I'll just have to start saving

Cheers,

Jens
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Old 14th February 2017, 08:54 PM   #78
AKSA is offline AKSA  Australia
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Wow, Jens, thank you! You are correct, it was a 50V rail, a 125W version. The 65V rail version is a little more dynamic and does over 200W//8R.

You spent a lot of time listening to the Maya and VSonics, and source was Oppo 105, which since I have set up with my HDD is now presenting some wonderful old music I'd laid down on a 500Gb drive ten years back!
You attracted marvellous self-control avoiding the giggle box. I'm addicted to evening TV, although Oz programming is getting worse and worse..... more time listening to music on the horizon!

Thank you for visiting us and thank you for your friendship and wise counsel!
Happy 2017!

Ciao,

Hugh
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