rlawry
Responses from rlawry
| Can an EL34 tube be replaced with a KT88 or 6550? Even if your amp will not allow you to negatively bias a 6550 or KT88, you can significantly improve the sound through tube rolling the EL34 tube family. For NOS tubes, Mullard EL34's and Amperex Double-D getter EL34's are terrific, as are GEC KT7... | |
| Led Zeppelin-newly remastered I hope the half-speed versions by RTI/Stan Ricker are better than other titles they have done. I am not a fan of the MFSL titles SR did and the Steely Dan Aja is a joke. The only one I like is the ZZ Top Tres Hombres. | |
| Amplifier advice for Wilson Sophia speakers There have been a number of posts on driving Sophias, so you may want to do a search or look at the amp/preamp section on this subject. I had a pair of Sophias, now Watt Puppy 7's, and drove them with an ARC VT100 Mark III, which I believe Wilson ... | |
| Name your favorite sax solo. Dunno if you can consider it a solo since it is part of the main melody line, but I can never get Raphael Ravenscroft's sax line in Gerry Rafferty's Baker Street out of my head. | |
| Smallest room dimensions for good bass to 20hz If I am not mistaken, even though the dimensions of your room may be shorter than the wavelengths of bass frequencies, a small room can support low frequencies through pressurization and depressurization of the room. I am in a small room and I can... | |
| How many dbs i will gain with 0,6mv cart.vs 0,3mv? Since your new output voltage is twice your old voltage, the gain is 20 log (V2/V1), which is 20 log (2), which is 6 dB. So you would get an additional 6 dB of gain from switching cartridges. Looking at it another way, you would need 6 fewer dB, o... | |
| How to flatten Vinyl Albums There is a treatise on a company making units to flatten LP's in the October Stereophile. This may be the safest bet to flatten valuable LP's. | |
| Moving Magnet Vs. Moving Coil Thanks for the compliments. I guess I surprise myself every now and then and get one right. Glad I was able to help. | |
| Changed preamps. Seems like less power now? It sounds as if your new preamp has lower voltage gain than your previous one. Yes, the preamp can affect the output of your power amp as it amplifies the signals from your front end so that it can be used to drive your power amp. There is nothing... | |
| Moving Magnet Vs. Moving Coil Inside every phono cartridge you have a working pair of parts: a coil and a magnet. The law of physics says that if you move one in relation to another, an electrical current is produced. This is how moving-coil loudspeakers work. You send a curre... | |
| Conrad Johnson MV60 I had a Premier 140, which is a 140 wpc version of the MV60, but like the MV60SE, uses 6550 output tubes instead of EL34's for the MV60. The MV60 uses circuit boards and the tube sockets are mounted to the board. I think the MV60 and MV60SE have b... | |
| Should I upgrade my Merrill turntable? I had a Merrill Heirloom turntable for 13 years and steadily upgraded my Graham tonearm from an original 1.5t to a 1.5t/c with 2.2 bearing. When I wanted to go to the Graham Phantom tonearm I was told by my dealer that they would have to drill a n... | |
| Polarity on a non-bladed plug? There are ways using a multimeter to measure the current between the chassis of the component a known ground, but I never worried about how to figure it out. Maybe your component does have some way to figure which side of the cord is ground, but i... | |
| Polarity on a non-bladed plug? The correct way to orient a 2-prong plug is to try both ways and see which way sounds better, if indeed one way sounds better. Sometimes it will make a difference, sometimes not. | |
| left speaker is louder than right speaker If your preamp or power amp uses tubes, it could be that one of the tubes is weakening and reducing its output. Have you tried reversing tubes from each channel? It could be a phono cartridge going bad in one channel. Have you tried reversing inte... |