optimationman
Responses from optimationman
| Best caps for updating my VTL 225 mono's ? I am assuming that the input caps are in parallel, and was done to decrease the input impedance or tailor the sound. Some would say that could "blur" the sound, others would claim that it would make it "faster". While I have not experienced these ... | |
| For crying out loud I have a highly modded Arcam alpha 5 NOS, and Philips 963sa with a dimming display. These are directly connected to tube mono amps and dynaudios. I believe that I can hear the difference in strategically changed resistors. There is only two caps i... | |
| What's the oldest piece of gear in your system? Oldest pieces are a match set of mono block tube amps built in feb 1963. Have upgraded them over the last 8 years. Next is a 1986 AI modulus 2a. Newest item, a 2003 Philips 963 bought for $25 and repair/modded. Had an old fisher system turner/pre ... | |
| Running a fan to cool amplifier any ill effects? I have two mono blocks that are fan cooled. Because the design was for rack mounting, and the close proximity of the 8 el34's per amp, this was a must. The fans blow directly across the tubes. The original fans were ac driving, and I replaced them... | |
| Coupling caps, upgrade, similar values Hi,If you know the input impedance of the next piece in the gear lineup, you can calculate the needed value to prevent roll off and possible distortion. Google for this formula. It seems most gear is designed for very low input impedance, one size... | |
| Optimation PA/CA-250 Hi,I presently have a par of PA1002 power amps made by Optimation INC. They are very similar to the PA250 with the same lighting lamps. I have tried to restore these to original operation but have had great difficulty getting information from Henr... | |
| Best path to upgrade my source good to here from all of you. I am a diy moder type and improving what I buy, be it benchmark or dac lite. How about a starting point! How much can a dac lite be improved vs a benchmark, or an older "state of the art cdp? |