I hope you guys can chime in on this issue I am having. I'm curious if my hearing is damaged... well, I think it's highly likely that my hearing is damaged in some way considering my entire working life has revolved primarily around restoring cars in a bodyshop, while disregarding hearing...

In all these years, I've seen a lot of ridiculous threads, and even more ridiculous users with ludicrous ideas on what they think they can hear when they make some strange change. Everyone hears differently, but I'm confident everyone will agree that they have seen this hilarious pattern pop up...

In the manual for my Son of Ampzilla, it says it can work with any headphones. This amplifier has no headphone jack so I can only assume one is meant to make an adapter which works with the binding posts--perhaps with banana plugs? It states something about the efficiency of headphones, and...

I acquired a pair of these speakers at a surplus store for $5 with no power adapter.  The Apple specific power plug quickly became a non-issue when I tested the speaker suspensions, which ended up being rotten.  But I found a re-foam kit for them on eBay for next to nothing so that wont be an...

Did anyone else see the valve amps in the scene where Kirk is screwing around with those cat-girls? Just wondering if that is commercial stuff or custom built hardware. Looked neat in any case.

What I have is an old P3TDEi if I recall correctly.  It's a dual-Tualatin board and I have two matched 1.4GHz Server CPU's for it.  It has a single PCI-X slot and USB 1.0 as well as dual-100base-TX.  Since the on-board video is absolutely unacceptable I want to put a new PCI video card in the...

from Nuforce and the earphones themselves are in great condition, but the cover broke off the microphone portion, and the plug is sort of chewed up from being run over. So I think I should recable these babies. I have no interest in the mic portion so I can go with a normal 3.5mm stereo plug...

Yay, I finished the full polymer recap on my P4PE! I was very happy with the results as it did in fact increase the responsiveness of my system. I was really becoming frustrated while surfing sites with heavy flash integration, such as MySpace, because the system would be thinking too hard...

I have this old set of desktop speakers which are run by a TDA2007 based amplifier. The design is a little different than other tiny amps I've seen because it includes potentiometers not only for Volume, but also for Bass and Treble. I was wondering what the transistors in the design may be for...

Hey, guys! I'm just posting to let you know that I made the most delicious banana bread, just now. I swear the banana bread somehow improved my listening setup because while listening I had a much more pleasant experience. All thanks to baked goods; can you believe it?!

So I was looking at the power supply crash course on TnT, and he calculates the required voltage this way: Sq. Root of: (power * 2) * load impedance = peak voltage Power being in Watts multiplied by two channels, and the impedance is 8 Ohms. How did he get the following result? Sq. Root...

This pertains to an amplifier I'm building, but the question relates more to headphone listening than DIY amp building. Since the output capacitor will affect my low frequency cut-off, I'm wondering what an actual reasonable frequency to settle on is. I could use the suggested value in the...

I was going through my old URL's and I remember on one occasion I was searching for something cooler than your typical Altoids tin, but I never thought to mention anything about it... and, after searching, it doesn't appear anyone else ever has, either. Check it out...

I was thinking about using an entirely seperate tin to store the batteries so that I could use more batteries, and keep them out of the amplifiers tin; even if just for the sake of having more room to put other parts in the main tin. What would be a good way to patch the power from the battery...

As some of you may remember, I have been piecing together parts to build a project system for headphone listening. The idea is to recap the PSU, the Motherboard and the Sound Blaster 16 with low impedance, high ripple capacitors in an attempt to achieve better all-around sound. Headphones...

IIRC, things such as iPod's are not quite powerful enough to give a good, let alone adequate, signal strength when used as a source for something like an automotive power amplifier. Could a cMoy be used as a line-driver between an MP3 player and the amp? Any suggestions for a different OpAmp...

I've heard of this trick being done on large woofers, where additional magnets were added to increase the magnetic field strength (not bucking magnets to cancel it) thereby increasing efficiency of the driver. Although, a read online shows that this usually betters the mid-range and worsens...

What really is the voltage running through a powered signal? For instance, in a cMoy, if you wanted to use cheap electrolytic caps in the output path rather than films, what voltage would they need to be rated at? In general, does this depend on the wattage at the output? For instance, if you...

I have to wonder about alot of headphone comparisons I see because someone will say, "oh yeah these have way more bass" or simply sound better, but I wonder if people are just mismatching equipment. For example, the old TEA2025 which was used on SB16's and like cards to power 4Ohm-32Ohm...