eldartford

Responses from eldartford

Effects of magnetic fields
There are very accurate meters to measure magnetic field. We used them to investigate the effect of fields on our inertial missile guidance system, and it is a fact that the earth's magnetic field affected instrument performance (Gyro drift, Accel... 
what is star grounding?
For audio frequency equipment a "single point" ground is best. This can be done by "daisy chaining" the grounds around to the single point, or by connecting multiple conductors directly from different parts of the circuitry to the single point. Th... 
Living Stereo SACD Releases
Fatparrot...I can't cite the particular disc, but in at least one case the original 30ips tape was unplayable, but an excellent 7.5ips copy of the master was used. (From liner notes).The original analog tapes probably used dbx noise reduction proc... 
How to see if there's DC at my AC outlets?
What's with the Variac? In my experience, all Variacs buzz, but some buzz more than others. 
Purpose of a DAC and Redbook Presentation
Yioryos...Still equally good, perhaps, but at what cost? 
Purpose of a DAC and Redbook Presentation
Purpose...The DACs you see are "outboard" units that can be substituted for the DACs that you already have inside your disc player. In the bad old days, players often had inferior DACs, and sonic quality would be improved by using the outboard uni... 
Top Ten Speakers of All Time?
rdiiorio@nyc.rr.com...Yes. Check my post of 5/13/03. I'm glad there is someone out there. 
"The Law of Diminishing Returns"???
Sean is correct this time. 
Living Stereo SACD Releases
Theaudiotweak...Center was always driven by a L+R mix signal. I did that for about 30 years, but what we have now is much better.Regardless of how you make the master tape, compression/peak limiting is necessary when you cut an LP, along with LF b... 
Living Stereo SACD Releases
Fatparrot...Sorry to tell you, but compression and peak limiting can and was implemented with tube equipment. It is almost manditory when cutting an LP. You are right that early multitrack mixing was not the greatest idea, but it made the recordin... 
Living Stereo SACD Releases
Let's keep the hype about these recordings under control! These were, in their time, state of the art recordings, but that was about fifty years ago. Folks should know that they will hear tape/tube hiss and/or AC rumble on many of the discs (all I... 
Best way to ship small value items--US to Canada??
Everyone seems to dislike UPS, but I recently shipped my Denon 2900 player to Canada via UPS, insured for $800, and it only cost twenty-some dollars, and got there in two days. It came back by FedEx, also in a few days. 
VTL Tetrode/Triode
Zaikesman...Very interesting indeed. Thanks. 
Your First System
1954. Garrard manual TT, GE phono pickup (mono with "flip over" 33 and 78 rpm stylii), Heathkit 20 watt integrated amplifier, Wharfedale 8" driver (full range, with floppy flannel cloth surround and strong magnet) in homemade corner enclosure. Tha... 
Does the power of an amplifier really matter?
As the owner/operator of Magnepanar speakers, I have learned a thing or two about amp power. I have used various amps from 100 to 600 watts/channel (4 ohms) and for every step of increased power the sound quality has improved. This has little to d...