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#421010 - 11/08/16 03:48 PM Re: Room Treatments [Re: 2x6spds]
2x6spds Online   content
connoisseur

Registered: 03/16/02
Posts: 3190
Loc: CA, USA
I got an EP600 subwoofer.

My Yamaha M80 amp is coming home after some upgrades and maintenance.

I am going to triamp these Emerald Physics using the EmPh100.2.SE monoblocks, the Yamaha M80 and the Odyssey Khartago. I would like to get a tube amp into the lineup at some point.

Serenity Now, thanks for the tip!


Edited by 2x6spds (11/08/16 03:49 PM)
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#421166 - 11/23/16 10:06 PM Re: Room Treatments [Re: 2x6spds]
bridgman Offline
axiomite

Registered: 08/25/04
Posts: 6218
Loc: Bowmanville, Ontario, Canada
What I'm struggling with is that 800 Hz corresponds to a pretty short wavelength, eg 1/2 wave is maybe 8-9". Seems too short for the spike to be a room or speaker placement issue unless maybe you have speakers ~1.4 feet from a wall ?

Or your DSP has become self-aware, starting in the 800 Hz band.

Mojo - LOL !!

I don't *think* the skylight dimensions are right for it to contribute to the 800 Hz spike but I would be tempted to temporarily stuff it full of fiberglass or rockwool insulation just to be sure. If your 800 Hz spike becomes a suckout then you just take half the insulation out.

It does sound like the kind of room we would ask for more details about just because it would be fun watching you try to draw it smile


Edited by bridgman (11/23/16 10:13 PM)
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#421167 - 11/23/16 10:33 PM Re: Room Treatments [Re: 2x6spds]
2x6spds Online   content
connoisseur

Registered: 03/16/02
Posts: 3190
Loc: CA, USA
I swapped out the pair of digital amplifiers for the 5 watt per channel SET tube amplifier. The spike is gone. I don't get it as I am running the amps through the same DSP.

I picked up a second Antique Sound Labs MG SI 15DT. This one does not have the V-Caps I used to upgrade my first one of these amps, but it does have a pair of super Svetlana Winged-C 6550 tubes, don't know what 12ax7s it's running.

I figure I'll put my other ASL amp into the Emerald Physics system, and swap the Svetlanas for the Tung Sols. That amp uses some wonderful Mullard 12ax7s.

I just got my Yamaha M-80 (M stands for Monster I think) back from its tweaking at Vintage Audio. I'm going to tri amp the Emerald Physics EP2.8s, using the tube amp for the mids, the Yamaha for the bass driver, and maybe the Odyssey Khartago for the coincident tweeter/driver.

I ended up leaving the EP2.8s in the living room for the parties, no one put an elbow through any of the carbon fiber drivers. The system sounded just great.

Still a difficult room.




[img:center]http://img.photobucket.com/albums/v192/2x6spds/20161122_153757_resized%201.jpg?t=1479872215[/img]



Edited by 2x6spds (11/23/16 10:38 PM)
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#421168 - 11/23/16 10:41 PM Re: Room Treatments [Re: 2x6spds]
2x6spds Online   content
connoisseur

Registered: 03/16/02
Posts: 3190
Loc: CA, USA
The EP2.8s look like Daleks from Dr. Who. You can see the Axiom EP600 peaking out to the left of the left speaker in the picture above.


[img:center]http://img.photobucket.com/albums/v192/2x6spds/20161122_153757_resized%201.jpg?t=1479872215[/img]


Edited by 2x6spds (11/23/16 10:45 PM)
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#421170 - 11/23/16 11:29 PM Re: Room Treatments [Re: 2x6spds]
Mojo Offline
axiomite

Registered: 01/21/07
Posts: 6083
I don't know what to say other than if you live in a restaurant, all bets are off for audio!
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#421171 - 11/24/16 12:42 AM Re: Room Treatments [Re: 2x6spds]
bridgman Offline
axiomite

Registered: 08/25/04
Posts: 6218
Loc: Bowmanville, Ontario, Canada
2x6spds dining room isn't much different from my living room in terms of "interesting" combinations of materials and dimensions. The tiniest change makes a difference:

Sound & imaging are fantastic with this setup (ignore the blur):


but dead and lifeless with this setup (blind on right hand window pulled down, sofa cushion moved down to floor):


BTW I just ordered a pair of M3v4 refurbs so I can do something a bit more like an apples-to-apples speaker comparison. I have always really enjoyed M3's every time I get a chance to listen to them.


Edited by bridgman (11/24/16 12:47 AM)
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#421173 - 11/24/16 01:46 AM Re: Room Treatments [Re: 2x6spds]
2x6spds Online   content
connoisseur

Registered: 03/16/02
Posts: 3190
Loc: CA, USA
Hey Bridgeman, you are my brother! Look at all those speakers!

That's a picture of my living room. I used the dining room for the buffet.

I rent the tables and chairs. I've been doing these pre-Thanksgiving dinners on Mondays and Tuesdays for over 20 years. After all, the turkeys are not getting any younger and nothing good is happening to the turkeys between Monday and Thursday.

Everyday is Thanksgiving!



I agree with you about the M3s. I love listening to them. I think they may be Axiom's best all-around speakers.

[img:center]http://img.photobucket.com/albums/v192/2x6spds/20161121_194017.jpg?t=1479883806[/img]

BTW, those are the magnificent Michaura M65s in the background. Incredibly solid hex shaped Rosewood cabinet and the familiar 6.5" drivers. They use Axiom's 0.75" Titanium tweeters. They are one of the few bookshelf speakers that I prefer to the M3s, although, it is a close call. The left speaker is sitting atop an EP500 subwoofer. The tube amp is the wonderful Antique Sound Labs MG SI 15DT with the V-Cap modification, Tung Sol 6550s and Mullard 12ax7s.


Edited by 2x6spds (11/24/16 02:02 AM)
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#421175 - 11/24/16 04:05 AM Re: Room Treatments [Re: 2x6spds]
AAAA Offline
connoisseur

Registered: 03/28/14
Posts: 1593
Floor center channel. frown

John, top down/bottom up honeycomb cellular shades are a great option for reducing window coincidence effect from near speaker placement. Works great.

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#421179 - 11/24/16 04:08 PM Re: Room Treatments [Re: 2x6spds]
bridgman Offline
axiomite

Registered: 08/25/04
Posts: 6218
Loc: Bowmanville, Ontario, Canada
Originally Posted By 2x6spds
That's a picture of my living room. I used the dining room for the buffet.


I guess that explains the speakers and the fireplace blush
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M60ti, VP180, QS8, M2ti, EP500, PC+ 20-39
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#421180 - 11/24/16 04:19 PM Re: Room Treatments [Re: 2x6spds]
AAAA Offline
connoisseur

Registered: 03/28/14
Posts: 1593
Those are spoiled dinner guests either way. smile

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