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Southerly

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About Southerly

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    Blaye les Mines
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    Stuart

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  1. For those banging on about electrons, completely irrelevant - Audioreview.com / cables Roger Skoff - The telephone is a lie. He is quoting from Dick Olsher a physicist.
  2. So, chapter and verse on what I have to do to get full value for my 1000 + LPs , theft or fire - I doubt if there is any difference on claims procedures in Oz or France or the UK and no I don't expect something for nothing.
  3. I don't understand your last paragraph at all - (1) firmly held in place wire - just what do you mean - held how and with what and your preference is for multistrand wire which is tightly wrapped in a dialectric, so vibrations on the chamber surface will feed directly into the wiring - really. The Sextets have a separate enclosure for the mid and tweeters exiting into the bass chamber through a very crudely drilled hole, otherwise these speakers are very well made. The bass chamber extends via a downward firing port to the bottom of the enclosure - no horizontal surface here. And as for placing passive x/overs directly in the path of the bass output and the Sextets are not alone in this - this is not good engineering but is par for the course - the inertia effect - we've always done it this way. (2) suspended in free air - that's exactly what the existing wiring does now - conductors tightly wrapped in sub-standard polyethelene dialectric used because it's cheap and 'we've always done it this way. The existing tweeter and mid wiring is the ribbon type - great for sound pressure and vibration to work their 'magic' on. The bass wiring is bare multi-strand copper, tightly wrapped dialectric (of course) hanging down to the x/over. Being aware of the effects of vibration on wiring and x/over were the very reasons I decided to externalise the x/over and change the wiring. It would be great if a tech college could be persuaded to create a programme to test the effects of vibration on speaker wiring with powerful speakers it could well mean the wiring literally vibrating visibly. So how to stop the vibration from contact with the actual wiring - creating an air gap/decoupling. I do that by using over sized dialectric so that very little of the conductor/s actually touches the dialectric but small sections of the conductor/s will still touch. So something must be used to further decouple the dialectric and that can only mean a buffer is needed. Whilst in hospital and needing an oxygen feed I immediately saw the possibility of the soft plastic tubing used, crap as a dialectric but great as a buffer. With the FEP tubing I use there is still a small air space with this tubing. So, when vibration makes contact with this soft plastic material most of the vibration will be dissipated, any remaining vibration will be dissipated in the air gap with the FEP tubing. With the Sextets all three transducers are close together at the top of the cabinet so I have to decide (a) to exit the mid and tweeter wiring separately and seal that chamber completely from the bass chamber ( a good idea) and create another exit for the bass wiring. Or (b) channel all internal wiring via one exit point. The x/over will be suspended at the back of the cabinet inside damped wooden open ended sleeves for good heat dissipation. The external speaker wiring will be damped similar to the internal wiring. As I don't play music at ear splitting levels and use kelims and antique Dutch table carpets on rear and other walls I cannot see airborne vibration as in any way meaningful or damaging in any way. Ittaku check out on ebay - Hi-end 7N ( I doubt it's 7N) copper + pure silver DIY speaker cable - you can choose 4 - 12 core around a FEP core from USD 15.88 + free post, worth a punt.
  4. Oliver Heaviside, well before the end of the 19th century did the definitive research on electrical conduction. No one in the scientific world has ever challenged his findings, ever- electricity travels not only within a conductor but around it as well. If you have multiple conductors woven together then the electricity/signal is constantly deflecting from one conductor to the others. anything that interferes with the speed and path of the signal is going to corrupt/distort the signal. This is called the skin effect. To overcome this stranded conductors are often enamelled. This does indeed stop the inter reaction but interferes with the propogation of said signal - don't forget ,to quote Heaviside - that the electricity/signal travels not only within but 'around' the conductor as well. This affects the mid and especially treble. When a copper or silver conductor is wrapped in a dialectric, any dialectric the same thing is happening, effectively constricting the signal. Most commercial cables use polyethelene because it is cheap but research has shown that this material chemically reacts with copper to hasten the formation of oxides - this is not an opinion but a stone cold fact. That is why many become unhappy with what they are hearing after a couple of years and so begins the search 'for something better. pwstereo - your first paragraph amply illustrated - the inertia effect - we've always done it this way - weight of numbers only illustrates that a lot of audio is the lemming effect. Even so lots of inter/connect and speaker cable companies have abandoned stranded for solid core for the reasons I have stated above. Sadly your coming from the past. Why hospital tubing - because I saw the possibilities when I was in hospital, as simple as that. No way would I use this as a dialectric as it is far inferior to TEFLON or FEP but it is soft as in absorbent got that? You seem to have no understanding of vibration issues at all. Many are attracted to OBs - aka open baffles for the very good reason that the vibration issues within a sealed or ported enclosure are non existent and the baffle, it's construction/materials and dimensions become very important this makes life a bit easier for the O/B constructor. As to your assertion that cables laying on the floor would be less susceptible to vibration than speaker cables suspended in air is - laughable. Remember we are not talking stadium concerts but music played in peoples' homes. I remember the Reggae concerts of 78 - 9 incredible gigs every Friday night in the autumn and winter of that year - Third world (before they went commercial) , Burning Spear, Dennis Bovell, Steel Pulse etc. etc. and then in 79 at a different venue Black Uhuru ( I think, it was a long time ago) and the reggae bass was physically abusive, it was like being punched in the stomach - I left. Now I don't think that anyone listens to bass of that intensity and remember your talking about a domestic sound system not a P.A. If you use vinyl then you would know that eliminating floor borne vibration is an absolute must. As to floor contact would be a 'damping factor' - no comment. .
  5. I'm in the process of externalising the x/overs of my Heybrook Sextet Mk 4s. The existing internal wiring is OK but knowing what a stunning improvement is obtained with inter/connects using conductors inside over sized dialectric is, I must replicate this with both the external and internal speaker cables. I could'nt disagree more, multi-strand flies in the face of sound science. I'm about to use copper 2 mm solid core for bass and 1 mm for mid and treble inside over sized FEP tubing. Over this I'm going to use hospital oxygen tubing which is soft, this should deal with vibration issues. There are advocates for using single large gauge conductors ie. 1 x 2 mm and for using 4 x 0.5 mm. I shall try both. Only by trying both will I know which yields the best results. Indeed speaker manufacturers seem to completely disregard the effect of vibration on internal wiring - why? As it is all the internal wiring exits via the passive x/over which is placed directly in the bass downward firing port, seems unbelievable but I reckon this is true of most commercial speakers. Where is the most 'air turbulence'/sound pressure, it has to be in the bass chamber. So all the internal wiring is going to exit via the mid/treble chamber and the x/over will be suspended via a wooden bracket on flexible cable (for bike handlebar bags). This also means that the external speaker cables will be suspended off the floor to the amps, one for bass and the other for mid/treble ergo this means no vibration affecting these external cables. Sadly most commercial wiring is made using polyethelene as dialectric because it is cheap but tests have shown that this material has a truly bad effect on copper causing oxidisation.
  6. Timely thread this. On another thread someone mentioned they were going to sell a cartridge that I have been looking to buy for some time. So I PMed him but when he found out I live in France it was a no-go. Reason he gave was that so many parcels are lost or damaged. This simply is'nt true - the only no-show for me was a s/hand CD from Germany, that was 18 years ago and I have bought items literally from all over the world online for over 23 years. I did buy a s/hand Kenwood TT from a hi-fi shop in Germany that was very badly packed, that in itself is very unusual but when I contacted the seller I renegotiated the price down to the equivalent of £120 and apart from a damaged corner to the plinth worked perfectly, so got a KD990 for a song. Sadly once a myth get's started it just keeps getting regurgitated. My biggest beef is how expensive shipping has become. The reason often is that virtually all shipping is'nt shipping but is airfrieght. OK shipping is slow but for heavy objects the cost would be a fraction of airfreight. I love living in France but La Poste is really expensive, same as the Netherlands. Germany is without doubt the cheapest post in the EU and that is with DHL which was bought by Deutsche Post. Your lucky in OZ re. import duties but the EU imposes a 20% tax on anything over €30 and that tax is levied on the shipping costs as well - so it goes.
  7. Some good advice here about equipment but here's the bugger - LPs. No one has mentioned these and my vinyl is worth an awful lot more than my audio gear. I was lucky enough to buy lots of excellent vinyl at car boots in the UK at the end of the 80s and into the 90s'. Obviously no receipts, I only have receipts for vinyl I bought at the beginning of the 90s and through to 2001. I can't remember now how much I paid for Santana - Supernatural but it's initial cost is nothing like it's replacement value now. I bought an unplayed 6LP Decca box set by two famous pianists for €2 at a street market where I used to live in the Aveyron SW France, mint it's value is up to £250. With over 1000 LPs. In the UK I was told I would need to use someone the insurance company 'accepted' to value the collection. Taking photos - how could I show the condition of each LP, I worry about house fires, theft. There are three reasons I would seriously like to digitise my collection - advancing decreptitude, a hell of a lot work cleaning,storing, replacing cartridges etc. and the ease of using external SSD and copies of the same, so in the event of theft or fire etc. my lifetime collection of music is safe and guaranteed and a lot of money in the bank to boot. As someone mentioned the insurance companies like to take your premiums but paying out that's another matter.
  8. And no one mentioned the glaring problem with this construction as with so much construction in the USA - an obsession with building flimsy fire traps. This building is surrounded by woodland and will go up like a big bonfire. Obviously the owners are loaded so why not use fireproof materials for the external construction. The internal works are excellent no doubt about that but why this obsession with flimsy wooden construction, time for America to change - check out what happened in California or like in the South - lots of food for termites.
  9. Not another one - talking from theory not practice. Not having heard a UBYTE 11 you know it's weird and sounds awful - give it a rest. The Cat 5 is for the connection tails. Andyr - looked at the specs. - very interesting that it uses FEP but no shielding, for me a no-no in a power cable since I use unshielded i/connects. It is the excellent double shielding of the CT sat. cable that makes it a cheap and very effective basis for a power cable.
  10. Surprised there are no replies to this thread.
  11. The generator supplies the batteries, in no way will it supply directly I thought that was clear in my first post. Unfortunately here in France if EDF refuses to connect to a new property then planning permission will not be granted - how's that for democracy. Factor in the cost of being connected, around €2K, monthly connection charges + TVA (VAT) and around 25-30% of the bill is charges. Take a 10 year account of these costs and a stand-alone system becomes totally viable. You only have to look at all the power hungry A/C units to realise that houses and business premises are built using crap materials that should have been banned decades ago (vested interests). Even when houses are built using the best insulation, air change systems are expensive to buy and to run but they are vital for good health. In houses that don't have an air change system lots of children develop asthma and other serious pulmonary problems. The other reason that a stand-alone system makes sense is very simple - weather or social unrest can remove that supply, so think what that will do to your modern life. I cannot speak for Oz but here in Europe so many refuse to to accept that the elites of any political persuasion have total power to disrupt their lives. To ensure a modern comfortable life people need 2 things - clean water and electricity, I'd like to ensure that I have total control over both of these.
  12. For those who make their own power or speaker cables. TNT is a great audio site with no b/s articles on every aspect of audio. It was on this site that I saw the speaker cable - UBYTE-2 and decided to make a pair. That was about 14 years ago and only now am I about to begin making a couple of alternatives - who knows I might well stay with the originals. The basis of the UBYTE-2 is the CT100/CT125. I decided to use the 125 aka 1.25 mm version. This is a co-axial sat. cable using air celled polypropylene construction with 100%copper foil over 80% copper mesh shielding with a PVC jacket, it is also 75 Ohm. I bought a whole reel of 100 M @ about £1 per metre. Apart from the speaker cables I intended to use this for an FM aerial when I moved to to the mainland (Spain). I also experimented using this material for i/connects - if the air celled structure had been TEFLON or better FEP I might well have persevered. The conductor of solid core copper is centred precisely in the middle, important for the sat. or FM signal. The beauty of this cable is the air celled structure. For something like a DAC or CDP or similar which uses very little juice it is only nec. to introduce another solid core conductor using one of the five air cells for the return and leave the double shielding alone, this is truly effective shielding which all power cables should have and it's only about AUS 2 per metre, I checked it out on RS Australia. It's very flexible which is a bonus. If you have a big power amp - no problem just use the air cells to introduce more solid core conductors, I would have thought that 2 x 100 mm or 2 x 1.25 mm would be fine for the most powerful of amps. If your worried about heat build up, remove the central conductor which is tight wrapped and use one of the air cells as these air cells are big. The overall diameter of the cable is 10 mm. Be nice to see someone A/B a set of these against the big money commercial offerings - at the price a no-brainer. I don't know if it's possible to buy less than a 100 M reel but if a few members get together, if nothing else it's a great sat. cable because of it's construction.
  13. Petrol is a volatile energy source which is what I stated, you hav'nt addressed this issue at all. Once batteries have been charged the system should automatically disengage./disconnect. please explain small generators being 'course'. It's the inverter that determines the quality of power supply and a good inverter will supply a specific voltage within +/- 1%.
  14. Protection from mains surges, protection from over voltage, variable voltage - has the OP thought about the simple but radical idea of storing incoming electricity into batteries and feeding through an invertor. Most good inverters include AVR - automatic voltage regulation. This means no more spikes/surges and all electrical equipment will last longer if fed a clean, correct and steady voltage supply. Batteries are constantly being improved, so don't buy the latest, golf cart types will do. for now. The cost of implementing this plan will pay for itself in time if you 'take' your electrictiy from a power company at the one time it can't sell much - 12-6AM. This is what I intend to do here in France also including a back-up diesel generator. Yes I know diesel is not an environmentally sound form of energy but it has distinct advantages over both petrol and gas, these are both explosive, it only takes one accident. The point about the generator is that if you run out of stored energy you do not have to take more power at a time when you will get screwed by the power company and if for whatever reason the power company cannot supply you,. After some major outages because of storms etc. some places in France have lost power for up to a week or more - the modern world doesn't exist without electricity.
  15. Years ago I had to find a way to secure the RCA plug so I could easily solder the conductors. I had bought some simple aluminium boxes for a project that never happened and by drilling a vertical face to take a chassis RCA plug and securing the box to the bench with a small vice I could then push fit the male RCA making it easy to solder. All you need is a piece of right angled material strong enough to fit chassis RCAs to. it can then be screwed to the rear of the deck near to the arm, that should work well.
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