Pensil 10.2 or 12 wrt bass extention? - Page 2 - diyAudio
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Old 24th January 2011, 04:44 PM   #11
Swifty is offline Swifty  Netherlands
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Scott,

Could I add a little volume to the Pensil 12 by adding a bit of depth, thus creating something in between the Superpensil and the Pensil 12 volume wise? I'm thinking to extend the internal depth to 39cm, creating about 80 liters of internal volume. Or will this negatively affect the "dampened air coupler" alignment?

BR,
Foppe

Last edited by Swifty; 24th January 2011 at 04:46 PM.
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Old 24th January 2011, 09:16 PM   #12
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You won't get any benefit (it would actually throw the alignment out), so my advice is to leave as is.
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Old 26th January 2011, 06:23 AM   #13
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Originally Posted by Swifty View Post
Thanks for the comment Scott, This is basically what WinISD also hints at and exactly why I'm undecided....Let's see what the feedback from the lstening test will be.
H Swifty and Guys
The guys gathered yesterday afteroon for a listening session (Transformer maker Kenneth, Tony Wong the amp guy, Norio who looks after Markaudio sales in Japan and me on the coffee machine.

I'd already set up the Pencil 10's and 12's side by side and warmed up the Accuphases. Things got a bit more complicated pretty quickly as various bits of kit (amps and CD players) got dragged out my aladin's cave so I'll do my best to summaries. Norio and Tony can chip in if I've missed anything.

Tony and Kenneth initially voted for the Pencil 12 when being fed by the Accuphase amp and CD player (308 integrated and DP67 CD). They liked the extra dynamics that comes with the greater cone acreage. Norio on the other-hand preferred the Pencil 10 with its 10.2 drivers for the lush bass and greater warmth.

After this initial test, various things happened. First off Tony's 300B was connected but we had a few problems with a tube socket so this amp was abandoned. Then we brought a sony CDP 333EX (all Japan model) but this to failed after playing a Chris Botti CD (didn't like Chris Botti so went on skrike - maybe this was a British built Sony CD player). After this, everyone returned to using the DP67 and also a Denon DCD3000. On the amp front, we brought out Tony's SET 6L6 (uses 4 X 6L6) which from memory is chucking out aorund 6 watts per channel. The final amp and and CD player choice drifted back to the Accuphase 803, Tony's 6V6 and the DP67.

The sort of general conclusion was:

Pencil 10 with 10.2 drivers + extra stuffing sounded really good on Tony's 6V6 coupled to the DP67. Tons of warmth and depth, especially in the bass department. Kenneth in particular was impressed although he felt that upgrading the transformers on the 6L6 would add more overall performance.

The Pencil 12 sounded ubber dynamic on the Accuphases (amp and CD). Our studio is big so the 12's really cut the mustard. That cone acreage comes in real handy when filling a larger space.

It was a tough call but in the end, the guys felt on this occasion, the 10's on Tony's 6V6 amp won by a short neck. But they think it will be more interesting to listen to the Pencil 10.2 cabs, arriving hopefully by mid Feb. Just goes to show how challenging it is to chose between these systems and how its important to do as best a total system match as possible. Lets see what happens when we start running the Pencil 10.2's. But in the meantime this might help:

1 - If you got a large space (over 6M X6M say) and your more interested in clarity and dynamics (you want to hear the pin drop from one of the musician's shirt tails onto the stage floor) - Alpair 12. But partner it carefully. Cheap amp, dodgy CD's etc. etc., forget the 12, it will kill anything it dislikes.

2 - If your priorities are more generally spread, the Alp10.2 is a nice all-rounder, particularly when partnered with warm (ish) tube amps. Still lots of detail etc. but is a but more cosy than the 12 on the "warmth" stakes.

This really is personal choice. I personally gravitate to my Pencil 12's when time permits. I just end up really enjoying the dynamics and while they're not quite as warm as I'd like some days, I find the 12's almost addictive. Please bear in mind this is just me. The next audio guy coming to listen might find the 12's too much to handle, or like me, he'll love the devil in the detail. I really need to give the 10.2's some airtime next month. I'll see how I feel then.

Cheers

Mark.

Last edited by markaudio; 27th January 2011 at 10:38 AM. Reason: additional
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Old 26th January 2011, 08:41 AM   #14
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As always, thank you for the inspiring posts, Mark.
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Old 26th January 2011, 10:29 AM   #15
Swifty is offline Swifty  Netherlands
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Thank you Mark for the elaborate feedback. From your description it seems that I would like the 10.2's a lot. How was the low end "texture" on the 10.2? Were the bass lines clearly defined?

BR,
Foppe
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Old 26th January 2011, 10:40 AM   #16
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Originally Posted by Swifty View Post
Thank you Mark for the elaborate feedback. From your description it seems that I would like the 10.2's a lot. How was the low end "texture" on the 10.2? Were the bass lines clearly defined?
BR,
Foppe
Hi Foppe,
Glad to help. That's what won the session yesterday. The 10.2's low to mids in the Pencil boxes on Tony's 6L6 got everyone's vote. Deep, rich and detailed.
Cheers
Mark.
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Old 26th January 2011, 11:19 AM   #17
Swifty is offline Swifty  Netherlands
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That settles it for me then! I will be building a pair of Pencil 10.2's in the near future. I will start a separate thread when the build commences, with a lot of pics of course.

Thanks again for helping me decide Mark, it's interaction like this that really adds a lot of added value to a brand.

BR,
Foppe
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Old 26th January 2011, 01:46 PM   #18
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Originally Posted by Swifty View Post
That settles it for me then! I will be building a pair of Pencil 10.2's in the near future. I will start a separate thread when the build commences, with a lot of pics of course.

Thanks again for helping me decide Mark, it's interaction like this that really adds a lot of added value to a brand.

BR,
Foppe
Glad to help out. Dave's got the Pencil 10.2 plans available for download on his site:

http://homepage.mac.com/tlinespeaker...aps-211010.pdf

Let me know if you need help sourcing the 10.2 drivers.

Cheers

Mark.
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Old 26th January 2011, 03:28 PM   #19
Swifty is offline Swifty  Netherlands
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Originally Posted by markaudio View Post
Glad to help out. Dave's got the Pencil 10.2 plans available for download on his site:

http://homepage.mac.com/tlinespeaker...aps-211010.pdf

Let me know if you need help sourcing the 10.2 drivers.

Cheers

Mark.

Thanks Mark, I won't have trouble sourcing the drivers.
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Old 26th January 2011, 07:01 PM   #20
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Wink One more 10.2

Hi All!

Thanks Mark for your beatiful Driver(alp10.2) I am soon finished with my building - 17-18 liter Ported with the new driver. Must run them in through the weekend - and then I will know the sound. Last autumn I built a Fonken with fr125sr/ert26 - and I wonder how can anything be better than this revealing couple(Fonken). Very excited about this new project.
Have lots of pics if it is of any interest!

Greating

Olav
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