eldartford

Responses from eldartford

Sound Proof???
Get new neighbors. 
Speaker w/F.R. 100hz & Receiver Bass crossover
Both the subwoofer, and the main speakers will produce significant sound beyond their respective crossover points. (The cutoff is gradual). The different LF response specs may just reflect different people writing the spec, and anyway, the differe... 
Equalizers anyone?
My experience with equalizers (none as sophisticated as those mentioned above) is that they can alter (improve) the sound of recordings, and change a speaker's frequency response, but room resonances stubornly persist, regardless of how you push t... 
Capacitor-less amps
A DC-coupled amp is really a DC power supply with analog command input, and a high slew rate. In fact, many years ago a power supply manufacturer demonstrated his product at a trade show by playing music through it. Subsequently, some audio amp ma... 
Capacitor-less amps
Yes. It is also possible to make a crossover for the speaker where the tweeter has no capacitor in series with it. It uses an inductor across the tweeter. The drawback is that such a crossover wastes a lot of power in a resistor needed to avoid a ... 
First time for this, opinions please.
Replacing the power cord while the unit is ON is no different than having the AC power go out (as happens from time to time). If the unit is damaged by such an event, it's a lousy design. 
Is extremely accurate "VTA" adjustment necessary?
Tbg...True...if you run one phono pickup channel with inverted polarity you need to invert other inputs of that channel. I did it with electronics modification, but you could also use a simple "knife type" switch in the speaker circuit. There are ... 
Manufacturer inspection cost
Particularly tube amps degrade very gradually, so that it is difficult for the user, familiar with the sound, to determine when this degradation becomes serious. Objective measurements, which the manufacturer is best qualified to do, are therefore... 
Is extremely accurate "VTA" adjustment necessary?
Having long since gone to a linear tracking arm, it is some time since I had to make all those critical adjustments. However, for most pickup adjustments, the technique of inverting one channel, AT THE PICKUP BY REVERSING WIRES OF ONE CHANNEL, is ... 
Is Spectron Audio "Dead or Alive"?
Audioengr...No, not yet. I have three zr1600 driving the front speakers of a multichannel setup. Each CarverPro serves a MG1.6 and its associated subwoofer.I might be interested in a mod to one channel of each amp, to be used for the MG1.6.I have ... 
Is extremely accurate "VTA" adjustment necessary?
With any pivoting arm, the effect of azimuth variation and skating force variation over the playing area of an LP will swamp out any effect of VTA variation between LPs. If you are serious about vinyl, get a linear tracking arm. 
bridging tube amps for mono
Blakeaudio...One way to think about why the amp sees lower impedance is...when operating normally (not bridged) the amp is driving current through the speaker to ground. However, when bridged, the amp is trying to drive current, not just to ground... 
bridging tube amps for mono
Con...The amps will see a low impedance load, which tube amps are not good at. For example: if the speaker is 4 ohms you ought to be using 2 ohm outputs which most amps don't have.I once modified a stereo tube amp so that it inverted one channel, ... 
What do I look for in used records?
The marketing slogans reflected certain technical features, although the marketing aspect was probably most important.For example: "Dynagroove" (RCA) meant that the signal had been processed so as to compensate for compliance of the vinyl. 
Tube Amp for Magnepan 3.6 - Rogue Zeus/VTL-MB450
And furthermore...I still think that a much simpler mod (that what EA and RAM are doing) would be almost as good. Parts...$200. Labor...$200. Profit...$300. Total cost $700. Maybe I will play around with one of my amps after all.