1970s Design Indulgence

PMC don't do LS3/5s - their thing is transmission lines.

To err is human.

Main set up? It is my main set up. I already put in around 10 hours a day with the music on. SWMBO would probably divorce me if I then started playing records for the remaining waking hours.

But I get your point.

I remember 'msphil' commenting with words to the effect "I don't know how you get the bass so right for floorstanders when you only have those little monitors". I replied along the lines of "it's down to experience", and actually it is.


Also you have to understand that I cannot mess about with frequency response, it has to be flat as a mill pond 20Hz - 20kHz at least (-0.5dB to -1dB), and is usually flat an extra octave either end (-3dB maybe).

How you then manipulate tonal qualities is down to a great number of other variables, which is learned through a lifetime's experience, and sometimes lessons are forgotten, but to err is human...

The voltage thing comes from research by Walt Jung and Richard Marsh and being able to assimilate it. But then again, if you go too far other factors creep in and are quite destructive.

It also depends on capacitor type: electrolytics are different to film caps in this respect.

Paralleling capacitors is OK if you know where it leads to. It depends on the overall impedance of the circuit or network. Often it can result in a different sound because you've worsened it, and that's because every capacitor has inductance and resistance (wire ends and PCB traces have inductance too), and their interaction has to be understood.

This article is about all I could find on a Google search, and even here there is confusion. One answer didn't take PCB trace inductance into consideration: https://electronics.stackexchange.com/questions/320363/antiresonance-of-multiple-parallel-decoupling-capacitors-use-same-value-or-mult


Edited by Graham Slee - 22 Jun 2019 at 9:48pm

Once again, I ask for forgiveness and understanding - I had completely forgotten that Mr Slee HAS Golden Ear's and also uses them[his LS3/5a's] AS his "listening reference"... I also can't believe some of the recording studio's and THEIR Reference monitors.. It's what you know, I suppose... I too listen to Studio Monitors as my every-day listen. They're also about 9 times the size of the 'to become' Stirling Broadcast LS3/5A. I wasn't having a go at the LS3/5a, I was thinking if "I had to use something as a Reference Monitor" I don't think it would be a small sized monitor. Since bitten by the large format speaker, I find it hard [but not impossible] to go to something smaller. 

Edited by DogBox - 23 Jun 2019 at 3:46am

Graham Slee wrote: so beware of tinkering tweakers who might not have a clue as to where their actions lead.