sprocket
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Posts posted by sprocket
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maybe this will help........
htt://www.tubeaudio.ca/
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Also good.................
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Maybe this will help............
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Did anyone attend the Rocky Mountain Audio Fest last weekend?
I went last year but missed it this year.
Here's the link to coverage by Six Moons...
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GREAT DISCUSSION ..
thank you all...
Good to see Erik back
RB
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Last year I attended the Rocky Mountian Audio Fest. This audio show is devoted to 2 channel audio reproduction
and my intention at the show was to track down some tube equipment that I have not had the opportunity to listen to.
At that time Rogue Audio was looking good to me.
Anyway my big surprise was a solid state system by Odyssey Audio. This
equipment was very tube-like in it's presentation. The Rogue equipment
was ok but the Odyssey ended up much higher on my list . I've
been wondering if
anyone here has listened to the Odyssey amp and if you were as impressed as I was.
I found this auction on e-bay ....
and others on Audigon... http://cls.audiogon.com/cgi-bin/cls.pl?ampstran&1131756053
Here's the link to this years R.M. Audio Fest (highly recommended).... http://www.audiofest.net/
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Leok
I use the coin trick also.. I reason that the penny works best. The copper is soft and I help the spike a little on the speaker side of the penny. A little hammer work does nicely. This results with in blunt bulge on the floor side of the penny. The bulge is very slight so the penny still looks to be flat on the floor but the mass of the speaker is well concentrated on the small contact area of the bulge.
The color of the penny coordinates well with the color of my floors.
Besides I'm a tightwad so a nickel is out.
Reg
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Correct..
If the speaker box remains in place, then the speaker cone housed in it also remains motionless .
The speaker cone moving against the air, can therefore move more air molecules. This results in a sound wave more consistent in magnitude and frequency to the electrical signal sent to the speaker by the amplifier. Energy loss by way of kinetic energy applied to the speaker box is eliminated.
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Here is a humble attempt at the physics behind coupling the speakers to the floor.
Air has mass and therefore when the speaker cone pushes against it the air pushes back. Newton explained it this way: For each force applied to an object an equal and opposite force is applied.
The cone applies force to the air molecules and the air molecules apply and equal force in the reverse direction. Now its true that the combined mass of the speaker and the box it is housed in is much greater than the air so the speaker remains in place. Ok so far. Well in theory the speaker may move a little in response the opposing force of the air. Especially if the speaker box is sitting on a rug. You can apply force with your hand (large mass) to the speaker and push it along the surface of the rug with ease. It would be of course be a very small a movement when the force is applied by the air (small mass). So small is the movement, it would be difficult to measure. However the movement of the speaker box small as it is would be subtracted from the extension of the speaker come.
So.... if the speaker box is anchored to the floor by its own mass pushing 3 or 4 pointed spikes through the rug and into the wooden floor it would even resist moving if you applied force with your hand. Now when the speaker cone is moving against the air there can be no cone extension loss due to speaker box movement.
That's the best I can do toward explaining. Others can take it from here.
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They remind me of these;
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Big reviews for this new to market integrated tube amp.
http://www.upscaleaudio.com/view_category.asp?cat=36
Has anyone tried it or planing to? Avalible in 2 tube flavors, EL and KT
Reg B
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Jhawk92 may be the most successful transporter of Khorns in a light duty truck.
He reports he made a three state trip with 2 Khorns packed into a Ford Explorer.
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I had forgotten the link.........
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I'd think an "outstanding" pair of Chorus II's might go for 900.00
Here's a link to a pair with photos rated 7 out of 10.
Bag them babies... Listen to em .... Then sell them to someone on the
forum if you don't like. I'll bet a paycheck you'll keep them.
Reg B
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Way to go JR. Glad a forum member got them
Reg B.
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Very good looking Chorus II speakers, Palm Beach local pickup only.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5739333304&fromMakeTrack=true
Wish I lived close by.
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The switch went back together easily. Erik I greatly appreciate your offer.
One of the two wiper bits had come off. I took a guess as to where it should be
placed. I drew a little picture of the 12 contacts (6 for each side) and placed the
timing ring in a logical position. Then I repaired one of the 4 claw like fingers
that holds it all together. This could have been the weak point that lets it come
apart (don't know for sure).
Mechanically the switch is working just fine now, however I now need to check it
electrically. My son has misplaced the Fluke meter. Some of you may appreciate that
17 year olds have a knack for misplacing stuff but can alwasy find the refrigerator.
The picture shows a fairly inexpensive switch even the shaft is plastic.
I'll have it operational soon and report back.
Bob, your packing job was flawless. We talked about how it was to be packed before
it was sent. Your attention in this matter exceeded my expectasions. Thanks again.
Reg B.
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The good news and the bad news.........
Bob's AE-1 has arrived and is far more atractive than is represented by his pictures. Everything about it is was pristine. The finish, the wood, all of it exceptional.... Now the bab news.
The preamp was doubled boxed with a supper abundance of bubble wrap and air bag protection.
It was sealed tighter than a well loved Pharaoh. The on-off-standby switch was, as you may have
guessed, come apart. Although it may be simple to reassemble, I just want to be sure how
it operates. I have found two metal ball bearing like parts and expect there is also a spring
wandering about inside. Am I correct that the spring with a ball at each end is placed through
the hole in the shaft that is at 90 degrees to the shaft's axis? Can this be done with the switch
still installed in the chassis? The 2 contact wipes must go opposite each other inside the housing
just before I snap the assembly back together. Have I missed anything?
Thanks in advance for the help.
Reg B
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I'm a happy Guy....
This week Bob's AE-1 should arrive at my door.
I've been using a Bottlehead Forplay for some time. I anticipate a reasonable
improvement is audio performance and also some fun with tube roulette, which is
required when a new toy enters the house.
Big thanks to Bob for kindly offering the AE-1 to Klipsch Forum membership first.
Thanks also to Eric for his expert attention to this unit by way of Wolfram. This
always cultivates great confidence when approaching such a purchace. Thanks to
Wolfram for not keeping it too long before turning over to Bob. Also thanks to
Kudret for his help in my preamp search, even if in the end I may have aquired a
preamp of a slightly different flavor.
Reg B.
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Hey Jazman
No on the 6sn7 bias question. I don't know of any Moondogs which require bias adjustments. HUM pot yes, BIAS no. Then again M-dogs seen to come in slightly different flavors in accord with builder tweakage. Anything might happen. I have heard that some manufactures with units that require bias adjustments make an easy and cleaver access point through a headphone socket. You use an adaptor connector to the multimeter into the headphone socket and adjustments are made by way of an external screw adjuster. Simple, no need to open up the box.
Anyway my M-puppies don't have any adjustment requirements and are silent even connected to my 84 Cornwalls, which we all accept to be 100db/m/watt.
I have made some power cables as per Chris VanHaus web instructions. They were fun to make and cheap. I may detect best results with the power cable to the Preamp. Hard to say with confidence. Still fun and cheap works for me.
I have never tried any silver interconects even though the wiring inside is silver.
More money may be used to explore in this direction someday.
Reg
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Jazzman, is the 6 mo tweak you mentioned replacing the AA batteries? If so I may have missed that as a requirement for having amps with a battery bias. The batteries have been in my amps for aprox 2 years. About half a year ago I developed a problem with one of them. I removed the batteries which requires some easy desoldering and tested them. They tested ok and the problem was discovered to be just a poor contact between the input tube socket and the tube pins. The problem was solved and I reinstalled the same batteries.
However maybe I should have replaced them seeing they were out. Eric what do you think? The batteries should be replaced eventually, but don't they get recharged as the amp plays?
Jazzman,I think the picture of my Moondogs was included in this post just to compare wiring skills, not shure. They are not for sale at this time. I like'en too much.
Reg
Looking for a Scott 299c Case
in 2-Channel Home Audio
Posted
I found it as a link on this site............
http://hhscott.com/Default.htm