Search found 1351 matches

by Geoff.R.G
Sat Apr 15, 2023 10:02 am
Forum: General Audio
Topic: Power cables and fuses
Replies: 16
Views: 3744
Great Britain

Re: Power cables and fuses

The Richard Dunn stance of having captive power leads makes a lot of sense. What's the point of having the World's best power lead only for it to go through an IEC plug and socket at the back of your amp / source? And then there's the UK ring type mains layout... And UK type wall sockets and plugs....
by Geoff.R.G
Fri Apr 14, 2023 12:51 pm
Forum: General Audio
Topic: 'Real' bass - ported vs sealed speakers
Replies: 55
Views: 7765
Great Britain

Re: 'Real' bass - ported vs sealed speakers

Some years ago a violinist friend brought her violin around and played it in my lounge. The first thing to say was that it was loud, very loud. This was just one violin in a relatively small room. Real (live) music is much louder than most Hi-Fi systems are played at. Another observation is that som...
by Geoff.R.G
Thu Apr 13, 2023 11:05 pm
Forum: General Audio
Topic: 'Real' bass - ported vs sealed speakers
Replies: 55
Views: 7765
Great Britain

Re: 'Real' bass - ported vs sealed speakers

I have absolutely no doubt that there are ported speakers that cannot be tamed whatever one does with placement. Equally I expect that there are IBs that are just as bad. If we were to identify those products and discount them I think many people would have difficulty determining, in a blind compari...
by Geoff.R.G
Wed Apr 12, 2023 7:39 pm
Forum: General Audio
Topic: 'Real' bass - ported vs sealed speakers
Replies: 55
Views: 7765
Great Britain

Re: 'Real' bass - ported vs sealed speakers

The issue however isn't the port but the resonant frequency, if the port resonates at a frequency within the range of human hearing there is every possibility that it will "honk". I am not aware of any ported speakers in the history of the known universe that have a port resonant frequenc...
by Geoff.R.G
Wed Apr 12, 2023 1:10 pm
Forum: General Audio
Topic: 'Real' bass - ported vs sealed speakers
Replies: 55
Views: 7765
Great Britain

Re: 'Real' bass - ported vs sealed speakers

The way I see it is this: Every enclosure has a resonant frequency, or several because we have holes containing resonant devices, and adding a port adds another one, or more. The issue however isn't the port but the resonant frequency, if the port resonates at a frequency within the range of human h...
by Geoff.R.G
Wed Feb 15, 2023 7:44 pm
Forum: ebay highlights
Topic: My latest obsession
Replies: 186
Views: 80742
Great Britain

Re: My latest obsession

Latteman wrote: Wed Feb 15, 2023 6:14 pm Is it not like leek or Lenco returning but u find out their turntables have usb / Bluetooth out😂
I’m not sure I could cope with a drum with a USB output.
by Geoff.R.G
Mon Feb 13, 2023 2:24 pm
Forum: Admin-Intro-Chitchat
Topic: Software Defined Radio (SDR)
Replies: 12
Views: 8019
Great Britain

Re: Software Defined Radio (SDR)

From my, very abbreviated, research on the subject it would appear that you may already be using SDR as it has uses in 3G communications. As you will be aware, 3G is old hat these days.
by Geoff.R.G
Sat Feb 11, 2023 10:10 pm
Forum: General Audio
Topic: I've done my own head in.........again
Replies: 58
Views: 9115
Great Britain

Re: I've done my own head in.........again

I know nothing about streamers Stu, except the BBC. As you know I have little time for Hi-Fi and more for live sound. It is my involvement with the latter that makes me cynical about Hi-Fi, all that effort to reproduce something that often isn’t what the band actually played. Some recordings can mak...
by Geoff.R.G
Sat Feb 11, 2023 8:18 pm
Forum: ebay highlights
Topic: NVA turntable
Replies: 15
Views: 14109
Great Britain

Re: NVA turntable

Roll up roll up. https://www.ebay.co.uk/itm/225412557818?mkevt=1&mkpid=0&emsid=e11021.m43.l3160&mkcid=7&ch=osgood&euid=35aed40740b7417cb333e34ba7cbb511&bu=43284132412&ut=RU&exe=0&ext=0&osub=-1%7E1&crd=20230211065950&segname=11021 So where are Richards...
by Geoff.R.G
Thu Feb 09, 2023 10:14 am
Forum: DIY
Topic: Building a DIY amp with NVA amplifier boards
Replies: 346
Views: 210698
Great Britain

Re: Building a DIY amp with NVA amplifier boards

A page on the screening of audio cabling and noise. Thus is from a manufacturer although a usually foo free and modestly priced one. J don't have thd knowledge to argue with it. https://www.bluejeanscable.com/articles/humrejection.htm I need to buy some coax it would seem. Stu, that very short arti...