gregm

Responses from gregm

PleaseĀ…I need help setting up sub-integration
The frequency response of the S40 is -2dB at 62Hz.1) Check what the S40's response is at ~35Hz assuming 70Hz is ~0dB If not, find the closest ~0dB frequency on the S40 & check the loss 1octave lower. This will give you an idea of the slope (i.... 
Sonus Faber Amati Homage vs Thiel 7.2
Henry_chinaski: I set them up myself. I should've made it clear that I bought them used here in New Zealand. I have tried different positions, but hasn't helped.Adjust speakers according to midbass energy (if you haven't already). Start by bringin... 
hi sensitivity lower power with b&w
No, no... You need Watts at the OUTPUT of the amp to drive the speakers. Amp "sensitivity" has to do with how much input energy/volts is needed for the amp to reach full output. This is usually very low 1-2 v.Watts: the amount of energy the amp ou... 
DIY speaker enclosure, maybe TL?
Speaker building is very exciting and rewarding (IMO). Please don't misunderstand me however, if I say that designing can be a bit tricky for an "entry level" builder. TL is particularly difficult and until King & other came up with modelling ... 
How do tube Watts compare to SS Watts?
Bartok, the KT 88 (similar to 6550), etc aren't push-pull. They're pentodes. Push pull is an amp circuit config.Cheers 
Can you imagine a world without vinyl?
Zaike: you could hit a Lenco & refurbish it a la Nantais. It's great fun -- really! 
Experiments with VTF
Where did you set the VTA when you started? Default parallel? 
Break in period
Shadorne -- that mustn't be what I'm referring to. I distinctly remember them comparing distortion figures (3%) I think between two ATC models at specific spl levels...Oh well.the higher output impedance of a tube (with ouput transformer) coupled ... 
Quirky British Audio
Why else would 8watt SET's work better in some cases than a 200watt SSBecause at least the following apply?*speaker is very sensitive*speaker equivalent circuit interfaces optimally with valve output characteristics (small phase swings, hi impedan... 
Break in period
PaulyDid you measure distortion levels and how do you know it is harmonic distortionsActually there is -or used to be- some ATC measurements available s/where re, linear & nonlinear distortion on their models. Unfortunately haven't found it-so... 
SET for 88 dB 4 ohm loadspeaker
Which loudspeaker?? Judging by yr info, go for any 40+W rms /4ohm, spec'd amp fm any reputable manufacturer (Wavac, Nagra, Kr Enterprises, ??). 8 series tubes or 211 tubes or 610 tubes. That's quite a choice... whether they'll play music with yr p... 
Break in period
Jeff sez If the results are audible, shouldn't they also be measurableShould be, I guess. BUT what would one measure? Once measured a diy phono equaliser with a friend (for other purposes) at ~2month intervals with a scope. Zilch. Note however, th... 
bi wiring
I am confused that speaker cable companies would take the time and effort to produce cables that employ different metalurgy and guages of wire in one cable run, if they didn't believe it could make a difference in frequency and time delivery??? Th... 
Dyscoveries on Dyna, Denon, Supex, Technics,FR,Ik
Raul: very interesting and informative reference postings.Maybe we should keep this thread up for quick reference.BTW, my limited experience coincide with yours in:Denon 103 (the basic 103): not superlative sound, but yes, better when securely scr... 
What tube amp to drive Guarneri's?
I remembered the KR enterprises amp model: It's a KR-"Kronzilla" using of course a 1610 tube (not 1611).It's a SE with ~25W/ channel. They also have monos (~40W/channel SE) which the Guarneri owner ultimately ended up with.Since you asked -- albei...