eldartford

Responses from eldartford

Do long interconnects degrade sound?
Albert...0.17 ohms for a line level output!! Are you sure?That sounds like the power amp. 
SPL METER? ATI OR RADIO SHACK
Tbg...For guys like you I promote the DEQ2496 purely as a spectrum analyser (and let nature take its course when they get their hands on it). Actually, if you have digital to input to the DEQ2496, and can take digital out, there is nothing in the ... 
Trying to get back into Lps, I seem to be throwing
Powers55...If you have not used the phono preamp for many years the components in the RIAA equalization network may have changed so that the frequency response is as you describe.Cranking up the volume control is no problem. All it means is that t... 
Trying to get back into Lps, I seem to be throwing
Hi Nrchy. Don't like the message? Trash the messenger. That approach never convinces me of anything. 
SPL METER? ATI OR RADIO SHACK
Tbg...FWIW, the DEQ2496 RTA is 1/6 octave. The graphic equalizer is also 1/6 octave, and there is also capability to do parametric equalization if that turns you on. 
Trying to get back into Lps, I seem to be throwing
Perhaps your expectations regarding vinyl are too high. "Disappointment" is exactly what I try to forestall by my comments to which some guys take great offence. (Hi Albert :-))Its good points are not the same as digital, and take a lot more money... 
Do long interconnects degrade sound?
Albertporter...Do you really think 600 ohms is a low output impedance? 600 was typical of tube preamps (12AU7 cathode follower) but I have heard that some modern tube units are down to 200 ohms or less. Solid state typically runs 50 ohms or less.I... 
Strange thingie in power cord of used Adcom amp
Actually, these loops are often a "retlif" ("filter" backwards) and their main purpose is to prevent your equipment from putting noise on the power line. They are often necessary for the equipment to pass muster with regulators. 
SPL METER? ATI OR RADIO SHACK
I played around with the RS meter and the Rives CD. It was a lot of work, and hard to be sure of results. So I went looking for a spectrum analyser. Couldn't find one for less than two grand...until I stumbled over the Behringer DEQ2496. The spect... 
Are first order crossovers best?
Unsound...We don't separate them. The full range advocates don't like to admit that their drivers break up, and emit different frequencies from different parts of the cone, and this constitutes a mechanical filter. If you think that design of an e... 
Are first order crossovers best?
Bombaywalla...The link you provided looks interesting, and when I have time to spend I will study it. However, I must dispute your suggestion that the phase difference between drivers in higher order X/O does not remain constant at frequencies awa... 
Are first order crossovers best?
Unsound...I had forgotten the Walsh driver...but, I think that even that had a mechanical X/O of sorts. The top part of the cone for a couple of inches (near the voice coil) was made of metal, while the rest of the cone was some other material. 
Haven't played my LP's in 20 years - still good?
I also think that LPs are tougher than most people think. In particular, everyone knows that they should be stored standing up on edge, but I confess to having sometimes left LPs stacked horizontally for a year or more without any bad effect. If t... 
Are first order crossovers best?
Brianmgrarcom...Take a look at the schematics for first and fourth order X/O, and think again about which is more difficult and expensive to design and build. However, your comment about having fewer components in the signal path is very valid. IM... 
rumble, on records or from turntable?
To check TT rumble, test records are made with a "silent groove". I am sure that these test records are not perfect, so the "silent" groove really ought to be called the "as good as it gets" groove. Many LPs do have LF rumble recorded into the gro...