atmasphere
Responses from atmasphere
| What is the best HEAVY METAL speaker? I have a home speaker that will blow away any JBL... for heavy metal...Dual 15" TAD woofers; it uses a JBL horn, although it is driven by a custom built compression driver with powered by a field coil. No alnico here. Later versions of the same sp... | |
| Amp and preamp on same outlet? 50 amps is correct. But we should keep in mind that the amp is likely never going to produce such power, as it would only be possible if the load were one ohm. I remember the Apogee Full-Range speaker approached that value, but the speaker cables ... | |
| Cartridge impedance loading question Pkoegz, its a good idea to try the loading at least. If it improves the sound (reduces brightness without affecting speed or bandwidth) then it tells you that despite low noise, the preamp is sensitive to Radio Frequency Interference (RFI). This i... | |
| Cartridge impedance loading question The MP-1 has loading strips mounted on the rear panel by the phono input. It might be one of the easier preamps to set cartridge loading. | |
| EL34 & 6L6 characteristics Triode power tubes do that easily. | |
| Need Audio Tech who knows tubes - Chicago area "gridding to the heater voltage" is a new one on me and I have been at this for over 40 years. Something does not sound right with this... FWIW to any technician that can use a voltmeter, measuring the heater voltage will have a lot in common with... | |
| Pickup SRA - starting from a 500x microscope Something to keep in mind is that all LPs are different- so the 92 degree SRA should be considered an approximation.The simple fact of the matter is that the cutting stylus only lasts about 10 hours before replacement is required to continue doing... | |
| Cartridge impedance loading question ^^ this is how prevalent the cartridge loading mythology is!Here is an explanation of why this cartridge may not have sounded bright in Lew's system:http://www.whatsbestforum.com/showthread.php?14815-Best-phono-stage&p=307116&viewfull=1#po... | |
| MR71 Tube Tuner alignment One channel not coming up when cold is not an alignment issue!The first thing I would do would be to test the tubes in the multiplex section to see if any are weak or shorted. Alignment will affect stereo separation, alignment of the discriminator... | |
| Cartridge impedance loading question The larger you make an air coil, the lower its inductance. https://en.wikipedia.org/wiki/InductorThe noise that a phono section has is usually not a function of loading. There are a lot of factors that have to do with noise- it is an immense topic... | |
| Cartridge impedance loading question A LOMC cartridge without a core is going to have a lower inductance value as compared to one that does have a core. A core has a way of increasing the inductance, all other variables being equal.As Jcarr points out in one of the links I provided, ... | |
| Anything as " fast" as SPECTRAL gear? We've had a polarity switch on our preamps since 1989. Its only audible if the recording uses a minimalist microphone technique, like two mics to record everything. | |
| Amp and preamp on same outlet? A well regarded equipment manufacturer told me having everything on the same line is optimum. I suspect this is related to the ground loop considerations Al posted.This has nothing to do with ground loops which are an entirely separate matter (FWI... | |
| Anything as " fast" as SPECTRAL gear? ^^ Noise can obscure low level detail, which includes minor soundstage cues. So getting rid of noise should reveal more detail and more depth. | |
| Cartridge impedance loading question Fleib, I recommend you do some design work and see if you still say that. You might also do a search on some of the comments by the Jonathan Carr (Jcarr) who is active on this forum. If a circuit does not have RFI problems then loading can still h... |