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Posts by David Pritchard

The Isoclean made a major improvement in the sound of my Zana Deux. It is certainly directional in that the sound is improved in one direction and worsened when installed the other direction. The good news is it is easy to listen to the...
Weccome to the exciting and fun world of tube rolling. Two variables that can be controlled are the quality of the tube pin contacts with the amp and the quality or the A/C power input to the amp. The first can be solved for the price of...
I think the Valvo's are a great choice for the Zana Deux. It is especially pleasing to my ears with the Sennheiser 650 phones. Run your amp for 200 hours before buying any other driver tubes. If you get bored you can change your...
I also have the Ps Audio equipment and it does work and is fairly price. Certainly if you buy the Premier power Regenerator($1499.00 with 1 year warranty direct from PS Audio rebuilt) you will have very good newly created A/C. I great...
AudiogoN has a new listing tonight for a pair of Brimar's 6SL7GT for $150.00. Not a bad price. They are not mine. Good listening. David Pritchard
Yes, The Iso Clean fuse is still allowing the Zana Deux to reach towards it's full potential. If buying a new fuse you can use a 3.3 amp or a 4.0 slow fuse. I just tried two other "system enhancers" that have the ZD...
I thought I has my information correct. In 1911 M.B.L.E. began making incandescent lights with the Mazda brand. In 1924 they began making vacuum tubes with the Adzam brand. Phillips bought the company in 1957. According to Sibley some...
Following tube linage is fun and frustrating. Adzam is indeed Mazda backwards. But , who owned Mazda? Phillips. So is the tube French(Mazda), Belgium(Adzam), or Dutch(Phillips)? It is a good sounding tube that is not often for sale in...
There is a nice Mullard ECC35 (6SL7GT) tube on sale at E-Bay stores. Based in Australia- less than $100.00 including postage. I put the Herbie Isocups under the ZD amp and power box today. The interconect is an Audio Quest silver based...
This week got to thinking about and reading about vibration control. Certainly we headphone users do not have to worry about speaker induced vibrations to our amps like traditional speakers can cause. So I put me hand on the power...
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