Search results

  1. J

    What are the Top Horn Speakers in the World Today? Vox Olympian vs Avantgarde Trio vs ???

    Hell Björn, looks very interesting.... my apologies! Any more detailed info... Greatings
  2. J

    SET amp owners thread

    This does not solve the prblem of the amps.... the caps are too high and the rectifiers failed, even the CV371. I owned such an amp and I know what I'm writing of. Lokk at the tube data sheets of the rectifiers and than compare the max. cap value in cap-input mode (firrst cap directly at the...
  3. J

    SET amp owners thread

    Yes it does.... I owned one 300B amp from Cary (first series) and many rectifiers failded. Lowering the caps to, for example 8uF, solved the problem.
  4. J

    SET amp owners thread

    The biggest mistake in the Cary amps is that the first capacitor direct after the rectifier tube is too high - especially when using a 274a rectiver. It should be lowered to my opinion.
  5. J

    EMT JPA66

    The ECC99 is an exceptional tube and I'd recommend to use it (very low plate resistance)... EMT is not any "garage" manufacture and has a reputation paired with deep know how. The advantage of variable adjustment of the cutting curves is, imho, the heart of listening to vinyl and a journey...
  6. J

    SET amp owners thread

    David, good luck... I'll cross my fingers, the 45, hard to beat, and owns a fresh sound and when it matches you will enjoy it
  7. J

    SET amp owners thread

    Is the 45 ac-filaments, and if yes can you adjust the hum with the pot? BTW, I prefer the 45 over a 2A3 & 50.
  8. J

    SET amp owners thread

    Typing error, thanks for the correction
  9. J

    SET amp owners thread

    David, you're loosing 6dB in power when using a single 2A3 instead of PSE. I think you'll not be happier with a "50" instead of the 2A3 and you should try out some NOS 2A3 before swapping the amp. The PHY-drivers don't go so much deep in the low frequency range but your brain needs only the...
  10. J

    Diesis dipole

    Hello Ked, thanks for the like and that you understanding the choke - sorry, I couldn't resist :)
  11. J

    Diesis dipole

    You should pay us that we are looking to this....
  12. J

    SET amp owners thread

    I have same in my mind to try it out, especially for the HF but using an input transformer instead of a volume control....
  13. J

    SET amp owners thread

    Thx for your reply, I have no experience with your cables you mention so it's not easy to give a recommendation. But I think the best is to try it out and listen (take some time for this)... and maybe you don't like both cables. Important is first the set-up of your XO and then look to the...
  14. J

    SET amp owners thread

    yes, and it's a continous work because we are learning with our experience.... still in progress because I will see how it works as 3-way (currently I use the Mid & High on the same amplifier - high with -6dB as well), other point is a line-level with constant impedance and a true active-xo.
  15. J

    SET amp owners thread

    Yes, that's correct - I forgot to mention but I thought this is the clear and must not be mentioned. BTW, nice horn setup you have :)
  16. J

    SET amp owners thread

    My xo-frequncies makes no sence for your system.... important is to know how it works, or better how to find the correct xo-frequency. You have to measure your drivers / horns without a xo by using pink noise! Then look at the curves (slope etc.), store the curve (mid-high for example) as...
  17. J

    SET amp owners thread

    No problem.... for the Mid-High is use a simple 6dB high-pass and calculated the cap by using the input impedance from the amplifier for the bass it's a 6dB low pass, calculated that the resistor is very low that I have less decrease of the signal both corner frequencies are layed at -6dB for...
  18. J

    SET amp owners thread

    320Hz xo-frequency is ok for Solid State amp in the bass and a SE-amp for the MID-Highs. In my system I cross at 250Hz with a line-level XO, several SE-amps (low power 0.25 to 3W) for the MH-section (108dB/W/m) and currently an old Marantz amp (from 1974) with 20W for the Bass (99dB/W/m). This...
  19. J

    First trials of active horn speaker

    Hello Rob thanks for the input, yes of course that's correct to measure that as well. My first attempt would be to measure the driver in the PWT and then waht you mentioned :)
  20. J

    First trials of active horn speaker

    When you modify the drivers then you have to measure them in the plane wave tube because it's another driver now and you should know how they're working after the modification (frequency, impedance etc.)
  21. J

    Telefunken AD1 triode

    Thanks for the flowers... Sorry, but I think my statement wasn't clear enough. Reading the datasheets mean that it is not a good idea rolling tubes in the same amplifier / dac by only changing the filament voltage. Everey tube owning it's specific operating points. When you change the tubes this...
  22. J

    Telefunken AD1 triode

    The AD1 from EML are far away from the Original AD1 manufactured in the past, as well as the EMl / KR45 are... speaking for the old production types: the sound is different to the 45s, they can do 2 octaves with exceptional bass and a phantastic midrange (and the Telefunken are wellknown for the...
  23. J

    First trials of active horn speaker

    Hi Brad, from my opinion the horn's level is to loud and I'd recommend trying out another filter than LR - for example BW... anpther thing is to find the right slopes but you have to measure it first. Good luck
  24. J

    SET amp owners thread

    Please let me make one correction: Alesa Vaic and Dr. Kron began her partnership with Vaic Valve (based in North Italy & Prague. Then the rest of the story... EML (EmissionLabs) started as well with Alesa Vaic and then they went her own way, like KR Audio / KR Enterprise (Eunice Kron). But the...
  25. J

    SET amp owners thread

    well that is the lowest explanation I'll accept.... and yes, Tannoy needs power and like push-pull amps. My Eminence woofers I used before needed solid state amplifiers and the problem of them is that the frequency range goes very high (over 1KHz) - some people use to add another magnet and then...
  26. J

    SET amp owners thread

    Please explain your comment, and once more I like to see a technical explanation
  27. J

    Zero Distortion: Altec Assault and the Magic of Misho (Audio Antiquary)

    Be careful, those measurements are done in a plane wave tube and I'd recommend the 350Hz as XO-point like Christoph wrote...
  28. J

    SET amp owners thread

    Send me a PM with your contact info.... :)
  29. J

    SET amp owners thread

    When you are in the country pleas send me a not via PM. But please not articles and pictures on your blog - I'm a littles shy and like to act from "behind the scene"
  30. J

    SET amp owners thread

    Yes I know.... we have already detected this in your thread about your horn trials.

About us

  • What’s Best Forum is THE forum for high end audio, product reviews, advice and sharing experiences on the best of everything else. This is THE place where audiophiles and audio companies discuss vintage, contemporary and new audio products, music servers, music streamers, computer audio, digital-to-analog converters, turntables, phono stages, cartridges, reel-to-reel tape machines, speakers, headphones and tube and solid-state amplification. Founded in 2010 What’s Best Forum invites intelligent and courteous people of all interests and backgrounds to describe and discuss the best of everything. From beginners to life-long hobbyists to industry professionals, we enjoy learning about new things and meeting new people, and participating in spirited debates.

Quick Navigation

Home Forums Contact us

User Menu

Login
Steve Williams
Site Founder | Site Owner | Administrator
Ron Resnick
Site Co-Owner | Administrator
Julian (The Fixer)
Website Build | Marketing Managersing
Top Bottom