jasonbourne71
Responses from jasonbourne71
| KLH model nine full range speakers The last amp I used with my Nines was the Carver Receiver - 135wpc. Bass impact was enough to shake the floor! | |
| KLH model nine full range speakers I have a pair of KLH Nines. You don't need much power. The difference between 40 watts and 60 watts is miniscule. You say the original owner was using a Marantz tube amp? The 8B? That amp is 35wpc. Doubling the power in watts to 70 will only give ... | |
| Do I Need A SUT You only need an SUT when your phono stage lacks enough gain for a LOMC cartridge. | |
| What was the most expensive record that you ever bought ? The Velvet Underground Banana original pressing with an unpeeled sticker. Mint condition too! These are listed on Discogs for around $1200. I found mine in a bunch of LP's I paid $10 for! | |
| Yamamoto HSA-01 headshell/head amp A + plus for battery power! I have a Marcof PPA-1 head amp with battery power for use with LOMC cartridges. One advantage a SS gain stage has over a transformer is extended bandwidth. | |
| Tube preamp topologies and music There's a Jadis Defy 7 for sale now on eBay for $2636 + $105 shipping from The Music Room in Colorado. Six EL34:s per channel for 100 watts. It looks real nice with black transformer covers and gold chassis! | |
| Magnepan 3.7i amp pairing BTW, I also have an older Ed Sanders amp - the TNT 250 from the days when Ed ran Acoustat. I bought it and the Perreaux to drive tough speaker loads. | |
| Magnepan 3.7i amp pairing My Perreaux 2150B can easily drive any Maggie to very loud levels - 340/680/920wpc@8/4/2 ohms! There is one now available on eBay for $590 + shipping. | |
| Tube preamp topologies and music A push-pull 211 can have double the power in watts of a PP KT88/6550 amp. With correspondingly more expensive parts/output transformer. Doubling the watts only gives a 3db increase in volume level. Not much! | |
| Tube preamp topologies and music AudioXpress magazine had a good article on building a single-end 211 amp some years ago. The authors cautioned that such a project was not for the inexperienced! I suggest you track down this article! I no longer have my copy. Another valuable sou... | |
| Tube preamp topologies and music Push-pull can have superior signal-to-noise (SNR) ratio and less harmonic distortion due to the self-canceling effect of a balanced circuit. Also there is no DC current flowing in the output transformer of a push-pull circuit. | |
| Tube preamp topologies and music The radio-transmitter tubes - 211, 805, 845 - require high plate voltages on the order of 1K + volts DC. Building output transformers able to handle a kilo volt without insulation breakdown is difficult. Plus having such a high voltage circuit in ... | |
| Tube preamp topologies and music In my tube amp collection I have several single-end amps: a 45, a 2A3, a 6BG6 and a 6L6GC. The last is the Golden Tube SE40, which uses three 6L6GC beam tetrodes per channel to yield 20 watts. Much more usable than the 45 (1.75 watts), 2A3 (3.5 wa... | |
| Tube preamp topologies and music All single-end tube amps are best used when power levels don’t exceed 25% of maximum wattage. Otherwise distortion climbs rapidly. Plus signal-to-noise (SNR) ratios are poor due to lack of common-mode noise rejection available in push-pull designs. | |
| Tube preamp topologies and music An 8 watt single-end 300B amp would be strained to drive a Klipschorn to adequate levels for hard rock/metal because past 2 watts distortion skyrockets to 5 - 10%. Add the inability to provide enough current for the typical 10 - 12 inch woofer and... |