Search found 621 matches

by Geoff.R.G
Thu Oct 25, 2018 10:10 am
Forum: General Audio
Topic: Do phono plugs *really* sound different?
Replies: 13
Views: 779
Great Britain

Re: Do phono plugs *really* sound different?

The only real way to find out would be to make up a set of cables using each of the makes/models you are interested in using the same make/model of cable between them. That way you could quickly change the cable and connector. However I would suggest that the standard of cable preparation and, if ap...
by Geoff.R.G
Fri Oct 12, 2018 3:47 pm
Forum: Elsewhere on the Web
Topic: Uncorrected lies on hi-fi forums
Replies: 40
Views: 2972
Great Britain

Re: Uncorrected lies on hi-fi forums

My Rega Elicit-R is described as having: "a low source Class A driver stage, based around a complementary pair of Darlington output transistors, forming an emulated Class A driver stage". No idea what that means or if it is 'better' than being Class A, Class A/B or anything else, to be honest. Soun...
by Geoff.R.G
Sun Sep 30, 2018 7:54 pm
Forum: Elsewhere on the Web
Topic: Uncorrected lies on hi-fi forums
Replies: 40
Views: 2972
Great Britain

Re: Uncorrected lies on hi-fi forums

Given the huge numbers of op-amps that nearly every album will have been through before it leaves the recording studio I'm not too worried about the effects of another couple in an active crossover. I'm not sure that what happens in the studio or in mastering is relevant. What you are trying to ach...
by Geoff.R.G
Wed Sep 26, 2018 1:19 pm
Forum: General Audio
Topic: (in)FAMOUS SLURPS
Replies: 202
Views: 14268
Great Britain

Re: (in)FAMOUS SLURPS

Anyone who can sell a box containing nothing more than a couple of wires as a mains conditioner should be selling fridges at the North Pole.
by Geoff.R.G
Sat Sep 22, 2018 4:52 pm
Forum: Elsewhere on the Web
Topic: Who is the worst lying marketing arse.
Replies: 23
Views: 1713
Great Britain

Re: Who is the worst lying marketing arse.

Dr Bunsen Honeydew wrote:
Tue Sep 18, 2018 10:17 am
The petrol we don't use will be running generators.
I fear you may be right
by Geoff.R.G
Mon Sep 10, 2018 11:12 am
Forum: General Audio
Topic: How important is a Hi-Fi fuse
Replies: 18
Views: 1137
Great Britain

Re: How important is a Hi-Fi fuse

1/4" copper bar cut to 25.4mm long (exactly 1 inch) Sorted. Wish it was legal, but who is to know. Legal on Radial Circuit, illegal on Ring Circuit, but as I said times are a changing. Trouble is the paranoid stooopidity at Wigwam seems unlikely to change. Interesting! I was doing some electrical s...
by Geoff.R.G
Wed Jul 04, 2018 1:28 pm
Forum: Elsewhere on the Web
Topic: Bye Bye Bagpuss (and Emily)
Replies: 2
Views: 624
Great Britain

Re: Bye Bye Bagpuss (and Emily)

Emily Firmin is still around. She was 8 when she was in Bagpus.
by Geoff.R.G
Tue Jun 12, 2018 8:27 am
Forum: General Audio
Topic: Transformer Hum
Replies: 41
Views: 3036
Great Britain

Re: Transformer Hum

Having noted the enthusiasm for the Tesla Power Wall I did some research into high power conversion systems, basically inverters. The research paper I skimmed covered an AC-DC-AC Variable Speed Constant Frequency generator rated between 40KVA and 250KVA. What I noticed fairly quickly was the amount ...
by Geoff.R.G
Sun Jun 10, 2018 10:58 am
Forum: General Audio
Topic: Transformer Hum
Replies: 41
Views: 3036
Great Britain

Re: Transformer Hum

It may be worth noting that a transformer designed for use at 60Hz may have a smaller core than one designed for 50Hz*. Such a 60Hz transformer may well saturate on 50Hz with DC present. One reason commercial aircraft use 400Hz is to reduce the mass of transformer cores. *The difference will be smal...
by Geoff.R.G
Fri Jun 08, 2018 6:39 pm
Forum: NVA Discussions
Topic: NVA specs
Replies: 29
Views: 2663
Great Britain

Re: NVA specs

There are a couple of specs that are important, even for NVA

Height, Width and Depth to be sure it will fit in the space you have available and Mains Voltage