After the first few little issues with the recessed jacks, the amp is performing wonderfully. It's mating very happily with the Senn HD280s. I finally understood the bass capability on those cans! It's also added better separation and soundstage to them. I am hearing details on "Riders on the...

Quote: Originally Posted by vranswer The 5th gens could also have this problem with ALAC files. Definitely a buffer issue with the larger size of lossless files. Doing a restore which formats the drive in the process eliminated the problem when I had my 5G iPod. Syncing to a defragged...

Quote: Originally Posted by Buitenzorger I thought it's a safety feature to let our ears rest for couple of second every one hour. Priceless! Somebody should add this to the iPod manual..new selling feature "Random, automatic pauses in music playback reduces listener fatigue and...

Haven't been by the forums in a ***long*** time and so many new goodies! Quick question: Is anybody else having a playback problem with their iPod Classic 160 gb? Mine will play a song, and then all of a sudden have a 10-15sec stoppage before loading the rest of the song. This happens...

"Suburbia" by Pet Shop Boys...

Quote: Originally Posted by CookieFactory There is a pentode/triode mode switch on the back as well. To date I haven't fiddled with it. Supposedly the pentode mode is more powerful and has a bigger frequency response but the triode mode is "purer," sounding. Pentode mode gives it...

BTW, you cannot roll the 4P1S power loctal. I spent 3 weeks trying and you can only get them from China or Russia and they are very specific mil-specs that no tube store carries.

Hi Ferbose! What kind of tube power amp would you recommend with the Presonus for speakers? I am considering a set of Energy C3 bookshelves.... Thanks for the info on this unit!

low = HD280PRO med = HD580 high = ?? I think the Portaphile plays very well with Senns, esp. the HD580. Adds some much needed air and open soundstage, as well as clearing up the mids. I have the DT880 and K701s. Works well too, but I just like the HD580/Portaphile synergy better. Have Fun!

I am guessing that unless I need the preamp function I should still get the Ear HD? Actually, how big a set of bookshelves can the new EAR +++ drive? The new Ear +++ is SO tempting though.....And as a Canadian, I can finally buy a great audio product without having to figure out how to beat...

There's always the option of going stag. I forgot about having to show up for my own prom one year until the florist delivered the corsages the afternoon of that day and then I remembered that I did indeed have a prom to attend! Of course, I had no dress to wear..but I did have a corset and...

Quick question: can I still use the 7B5 if the heater voltage is 6.5v, where as the 4P1S is 4.2v or 4.5v? Current is 0.4A which is .05A higher than the original...

Quote: Originally Posted by sacd lover The tube you show has a loctal base; not an octal base. Loctals were usually military tubes. The loctal metal base was designed for high vibration environments. In WW2 when planes flew upside down the vibration, plus gravity, could cause a tube to...

Quote: Originally Posted by edisonwu Is this the little dot 3 amplifier? Why not ask the amp designer for the help? He is a very talking man. He may know such things better than any other people here. I am sure he will provide you better choice on tubes swapping. Yes...

I finally found the specs on the *(*&*^*(^ 4P1S tube: Uf = 4.2V If = 0.325A Ua = 150V Ia= 60 +/- 20mA Ug1 = -3.5v Ug2 = 150V Ig2 less than or equal to 6.5mA Ug3 = 0V S = 6+/- 1.5mA/V PO equal to or greater than 4.2 W Cin = 8.5pF Cout = 9.4pF Cag less than or equal to 0.1pF...