eldartford
Responses from eldartford
| Cryo-treating CDs? Blueranger....Cryo is just an extreme form of heat treatment which has been, for several thousand years, a technique for modifying the physical properties of metal. What happend to your knife has no relavance to CDs. | |
| Inverting and or non inverting amp? Tbg...Tube gain stages invert polarity, but a "cathode follower" (unity gain) which is usually included to provide low output impedance, does not. So your rule should be to count the gain stages.Yarvis...most test discs deal with "relative polarit... | |
| I'm blown away by the Sonic Impact tripath amp. Amandarae...An audiophile upgrade of the very respectable CarverPro ZR amps will hit the street in a few months. | |
| Cryo-treating CDs? Does anyone have an idea regarding how cryo treatment could affect the sound? There is no sound on the digital disc, just a bunch of ones and zeros. About all you could do would be turn some ones into zeros or vice versa, and it seems that this wo... | |
| Microphonic Amps? All tubes are microphonic to some extent, but the only time that it becomes a real world problem is with high gain amplification stages, such as a phono preamp. Output tubes like EL34 should not be a problem, although the input stage, 12ax7 for ex... | |
| Radio Shack SPL Meter mods corrections Sean...In my old business, where I was responsible for test design (software definition) the problem was like this...1...You must get the software delivered by this date. Don't worry about making it perfect.Then, after the SW is delivered, and som... | |
| Anyone hear the Caravelle speaker and not like it? It is certainly possible to get very low bass (SW range) out of a small box. I happen to have a set of Dynaudio Gemini speakers which are MTM configuration using woofers with cones that are only 3.75 inches in diameter. (The voice coils are 3 inch... | |
| am/fm tube tuners The "best" tuner depends very much on your location. If you are in a metro area, sensitivity does not matter, but multipath rejection is important. In all cases, a directional antenna on a rotator does more good than any tuner upgrade. With regard... | |
| noise ..noise..noise.. Gmood1...1...While the power capability (watts) of the amp has no direct relationship to its noise level, it does affect how the noise level is spec'd. Noise is spec'd relative to full power output. So a 60 watt amp rated at -100dB will be quieter... | |
| Can all amps drive a 4 ohm load? Tfkaudio....The tube amp will not work harder. In fact you need to use a lower tap on the transformer output just to have it work equally hard. This is like shifting to a lower gear in a car. You can go up a steeper hill, but you can't go as fast ... | |
| what is a ground loop? In an airplane, it's a maneuver you do when your brakes fail and you are about to go off the end of the runway. You put a wingtip in contact with the ground and the plane spins out and stops quite quickly with little damage.In audio, it refers to ... | |
| the 4 ohm rating Phasecorrect...One of my sons did in fact drive a 4 ohm low efficiency speaker (KLH 5) with a clock radio. I told him it wouldn't work, but it did! Not a great deal of volume, but what there was sounded loads better than the clock radio speaker. | |
| Switch from SACD to redbook layer on front panel? Denon 2900 does it. It can be done "on the fly" but there will be a pause in the sound while the player locates the new program on another area/layer of the disc. | |
| am/fm tube tuners AM radio is for talk, and ball games. In fifty years I never had AM in my audio system, and never missed it.The only time that AM radio had anything to do with serious audio was back in the 50s, when WQXR, AM and FM, in NY, broadcast experimental ... | |
| tube amplifier auto bias- accurate? Ed_sawyer...Actually, you can use a scope to measure voltage if you are too lazy to go to the cabinet and dig out a voltmeter. Or, if you want to impress an audiophile.I also know how to add on a slide rule (remember those).And count to 35 on my f... |