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Post by MikeMusic on Apr 9, 2019 11:13:18 GMT
Into our Pilates session this morning, Pirates if you are the Boss's dyslexic mate.... Something said about the music our man runs in the background I didn't fully catch. I said don't bother as the usual choice is grim. A delay then on come The Beatles. Different mix to previous....? After 30 minutes or so I work out this is the same mix and wonder what is going on. It sounds better. My imagination. No, it sounds better. More detail, dynamic range, more music !, nicer to listen to Have to ask Have you done something to the music box ? No. Oh. That's me stymied then. Then Er yes I suppose so, but only plugging into the mains as the battery is flat. Asked the rest of the punters if they can hear a difference. Yes. Investigate Looks like one of these jobbies  BUsually plays from internal battery now using a very thin mains plugged into HDMI port Source is his Apple iTunes via his phone. Mains makes a difference ! Then I had to laugh Our man says "I find it sounds better when plugged into the left hand socket" Assumed he was taking the mickey out of me as I may well have said that in conversation about systems No, dead serious. Left hand socket is usually the one with the earth connected directly and I have found that best What odd mains stories have you ? |
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Post by mikeyb on Apr 9, 2019 12:26:58 GMT
Sticking a screwdriver in the mains socket at 3 year old gave me a surprise too, not sure about the audio improvement but my right ear rang a bit after my mum clouted me for being so stupid 😂
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Post by MartinT on Apr 9, 2019 13:07:58 GMT
Similarly, pushing a chassis back home into its case while having forgotten to unplug the bloody thing and allowing my finger to slip underside and touch the mains switch connections caused me to do the dance-of-imminent-destruction for a couple of seconds. It must have looked funny but I was kinda busy at the time.
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Post by Deleted on Apr 9, 2019 13:55:09 GMT
Being struck by lightening twice tends to focus all of your senses not just your hearing!
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Post by Slinger on Apr 9, 2019 15:31:39 GMT
Being struck by lightening twice tends to focus all of your senses not just your hearing! But it never strikes tw... OK. Never mind. |
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Post by Deleted on Apr 9, 2019 16:03:50 GMT
Hi Paul
I am the anti thesis to this old saying, I genuinely have been struck twice, I might add it did smart a bit!
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Post by mattspl on Jul 27, 2019 8:04:06 GMT
When I was 6, we had an extension built on our house. While the builder was doing the work he had sockets and their metal back boxes hanging by the cables in the exposed stud walls. I found a used jigsaw blade on the floor and decided to start sticking it in the back of the socket and metal box. There was a bang and a flash and I was now standing about 2 meters from the socket, the jigsaw blade was welded to the metal box and the power had gone in the house. The builder came running In, relieved to see me alive. I’m now an Electrician  |
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Post by Deleted on Jul 27, 2019 8:29:05 GMT
I once touched a heat sink inside my dac - this was when I discovered that unlike heat sinks on the outside of amps, these have current running through them.
It hurt.
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Post by zippy on Jul 27, 2019 9:56:34 GMT
For us oldies - I remember the old 2-round-pin bakelite plugs. The wires were usually just twisted onto the pins and it was extremely easy to get a shock when accidentally touching the pins while plugging in.
Saving grace was that:
a. I think they were only rated for about 6 amps
b. People like me who regularly messed with electrics sort of got used to getting shocked every now and then
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Post by Slinger on Jul 27, 2019 12:09:53 GMT
I've lost track of the number of belts I've had over the years. The one from the HT in an old CRT telly was quite memorable. Teleprinters (I'm old, live with it) were "fun" too. They transmitted using +80v and -80v and when working with one's hands between the tag blocks it was easy to get a shock, which jerked one's hand into another block of pointy metal tags, which repeated the electrocution and threw one's hand back where it had just come from, which meant another shock... repeat (almost) ad infinitum. In those days every jumper cable was soldered to its tags too, so it often meant working with a pair of (metal) pliers and a (metal) soldering iron in a gap a few inches wide. You can see a tag block below. The left-hand side was permanently wired, and the jumpers were run to the tags on the right. Now imagine one of those on each side of your hand, and having your hand batted between them at 75 Baud, or 75 bits/second for the sake of argument. "Tag rash" was a common injury. Engineers were actually issued with a special leather "glove" to wear so as to avoid the shocks. Nobody ever remembered to wear them.  TAG BLOCK  |
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Post by MartinT on Jul 27, 2019 15:18:12 GMT
Teleprinters (I'm old, live with it) were "fun" too. They transmitted using +80v and -80v  Oh yes, I remember them well (I'm old, too). I've had several belts but the worst came from early switched mode power supplies. I quickly learned how to deal with them and my colleagues were a little afraid so I became the repair specialist. Most repairs went well but a jolt from about 350VDC is something to remember. The best entertainment was had when a high voltage reservoir cap blew its top, causing the entire room to snow with white fluff just after the loud crack putting much underwear at risk. |
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Post by Deleted on Jul 27, 2019 21:04:55 GMT
“Putting much underwear at risk” that tickled me!
Isn’t it the amps that kill? Not being a shock connoisseur, does one appreciate the difference in the voltage of a shock?
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Post by MartinT on Jul 28, 2019 0:58:22 GMT
It is current that kills, but the higher the voltage the more the discomfort and, of course, the larger the potential for a high current through your body.
A car battery is capable of hundreds of Amps but only at 12V. So when you put your fingers across the terminals you feel nothing.
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Post by Deleted on Jul 28, 2019 2:22:38 GMT
Is that because the amps are delivered so ‘gently’?
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Post by MartinT on Jul 28, 2019 9:13:48 GMT
Yes, with 12V potential across you and a relatively high body resistance, the current through you will be tiny.
Conversely, put a very low resistance across the battery like a screwdriver shaft, and watch it arc, go red and melt from the very high current.
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Post by MikeMusic on Dec 11, 2019 19:32:16 GMT
Another improvement in sound quality evident in the system in the bedroom
Pioneer PD-S703 CD player, SMSL Q5 Amp, Linn Saras
I done nuffink to it honest.
Back to the CD from tape deck for the first time in months with well known CDs
Better all round sound with a massively increased bass delivery. Better dynamic range
The only difference I can fathom is the extra mains filters and conditioners in the room immediately below on a separate ring.
Thought I noticed a gradual improvement in the kitchen system. Put that down to a vivid imagination, but must again be the mains improvements in the main system.
Even better VFM.
I'll take all the improvements thanks
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Post by MartinT on Dec 11, 2019 20:37:44 GMT
A Q5 driving Saras! |
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Post by julesd68 on Dec 11, 2019 21:15:30 GMT
Love my Q5, even if I only use it for TV duties.
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Post by MikeMusic on Dec 12, 2019 10:00:06 GMT
The Q5 is a stunningly good amp for the price. To hear it performing so well left me speechless. Much confused thought
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