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lindsayt

Wammer
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lindsayt last won the day on January 1 2011

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About lindsayt

  • Rank
    Wammer
    Experienced Wammer
  • Birthday 12/02/1966

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  • Location
    Huddersfield, , Unit

Wigwam Info

  • Turn Table
    EMT
  • Digital Source 1
    Denon
  • Power Amp/s
    Coincident, Korneff
  • My Speakers
    EV, Bozak

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  1. From what I've seen, his videos are sound enough. Although he does seem to be into the small / slimline speakers paradigm. Which is OK. But not my cup of tea for content...
  2. Idler drives. Best explained by looking at an example or two. Here's a photo of an EMT 930 with the platter removed. The platter is a very substantial bell shaped thing. Similar in shape to the LP12 platter, but with a bigger main bearing and thicker, deeper rim. The motor is the black thing with the thin silver spindle coming out the top, to the bottom left of the platter bearing. The idler wheel is the silver and black wheel. A lever moves the idler wheel into place so that it presses against the motor spindle and the rim of the platter at the same time. When the turntable is switched off the idler wheel retracts from the motor spindle to prevent the rubber from getting deformed. Here's a close up photo of the motor spindle and idler wheel: In order for good sonic results, the idler wheel needs to have good bearings and to be clean and to have a precise, ground finish on the rubber. A good quality motor with good bearings helps too. The idler wheel provides the gearing ratio required for the motor to the platter speed. You can see 3 different diameters on the motor spindle, for 33, 45 and 78 rpm. Moving the idler wheel up or down determines which part of the spindle it is pushed against. Motor and idler wheel have vertical rotating axes in the EMT. In the Lenco's I've seen, the idler wheel is much narrower and has a horizontal rotating axis. The idler wheel on the EMT is easily replaceable, via the circlip.
  3. Your ears would love it. You eyes might not be too impressed if you're of the school of thought that speakers should be heard but not seen...
  4. There's a paper that features that chart: https://www.bksv.com/media/doc/17-197.pdf The paper is mildly interesting reading. In reference to that "optimum" curve, the paper said that for recordings made using farfield microphone positioning, it should be absolutely flat. For recordings made with a mixture of nearfield and farfield microphone positioning, the curve should be as per that diagram. That's fine for acoustic live recordings. Classical concerts. What about rock and pop studio recordings? Where we are talking about very nearfield microphone positioning? Or electronic instruments plugged straight into the recording equipment. And where multi-track recordings are mixed down to 2 channel. Also what about Fletcher Munson? Different playback volumes resulting in different perceived frequency responses. I have no idea if my optimum curve is flatter than the B&K one, or if it is more steeply sloped, or if it is a more complex curve. I have a feeling that a lot of pop music is mixed with a B&K curve built in. And it therefore seems daft to apply this curve a 2nd time.
  5. Challenge accepted! . . . How much did you pay for them, by the way?
  6. Have you auditioned the 2 way horned plus bass bin Altec Model 19's? Or the 2 way co-axial horn plus bass binned Altec 604's? Or any other variations on the 2 way horn plus bass bin theme? If so, what did you think? If not, on what are you basing your assertion that horns should be at least 3 way?
  7. My EV Sentry III speakers have ports. Most people would regard them as huge speakers. I see them as large speakers. I can understand why they have ports. To get the 15" woofer up towards the efficiency of the compression driver and horned squawkers and tweeters. But the downside is that these speakers only have "average" bass - on my scale. The negative sonic effects of the ports in this speaker are clearly audible.
  8. Low efficiency slimline ported 2 way speakers are the work of the devil, sound quality wise. I've also heard tiny 2 way low efficiency acoustic suspension speakers that sounded pants - relatively speaking. When it comes to which is least worse out of tiny low efficiency 2 ways: sealed or ported? What a Hobson's choice! With this genre of speakers it's a case of aiming for something that fits with your lifestyle, that is affordable and listenable. For a cunnning plan, go for 12" or larger woofers and then you can go 1, 2, 3, 4 or 5 ways with a chance of good sonic results for the money...
  9. I find most - but not all - belt drive turntables boring to listen to. Or in the case of the LP12, overly coloured with a woolly bass and a small hand-bell ringing, hypnotic upper midrange. Plasticky DD's will be rubbish. The heavier metallic DD's in good condition are excellent with no hint of audible hunting / flutter / motor noise. But then once you get to a turntable of the level of a well fettled Garrard 301 / 401, Lenco, Thorens TD124, Pioneer PL71, Sony PSX6750, Nottingham Dais, etc, the turntable and whether it's idler, DD or belt drive becomes academic and the quality of the arm, cart, phono amp, turntable support and location take over as more important in determining what will sound best.
  10. I use Cisco AP's to extend the wireless network in my home. They seem to do the job reliably for the money you can buy them - used - off ebay. However they do need to be configured to work in a home network. Configuring them requires the right console cable and adapter (mine cost me about £15) and following some technical instruction - available off youtube. There are differences between Ethernet cables. Different standards. Different construction. Cat 5e being a basic minimum standard of cable and one used in the vast majority of in-wall cabling in offices in the UK. As you go up from Cat5e to Cat6, 7, and 8 you get higher maximum data transmission speeds, or lengths for a given speed. And then you have fibre cables that can offer mind boggling data transmission speeds over kilometre lengths. There have been reports of different Ethernet cables resulting in improvement to sound quality. My suggestion in the context of a multi thousand pound audio system is to try a £16 Farnells Cat 8 cable and use that as a baseline to compare against any fancy audiophile patch cables. For the more adventurous, there's fibre. Last time I looked a basic 1 gbps fibre home network could be put together for about £100ish upwards and 10 gbps fibre for £250ish upwards.
  11. I give 5 metre lengths of Cat 5e cables away for free to friends and clients. For longer lengths I buy reels / boxes of cables and put the ends on myself. You can go fancier than Cat 5e. For example, Farnells do 5m lengths of Cat 8 cables for £16.19. https://uk.farnell.com/c/cable-wire-cable-assemblies/cable-assemblies/ethernet-cables?lan-category=cat8 If you go on ebay, you can get 100 mbps 8 port Cisco business switches for £25 and 1000 mbps (gigabit) 8 port switches for £70. At those sort of prices in the context of a Naim system it's worth taking a punt.
  12. I'm trying to get my head round what you are actually asking for advice on? Are you looking for recommendations on Ethernet cables? If you're running out of power sockets, why not put more in? Through whichever safe method is best for you. When it comes to home networking hardware, I like Cisco and HP Procurve business grade equipment. Because that's the stuff I've worked with for 20 years. And they are well engineered and you can buy them used for peanuts compared to the original cost. When it comes to home IT networks, I'd be very wary of taking any advice from hi-fi dealers. They're hi-fi dealers, not certified network engineers!
  13. lindsayt

    DSP

    Is the rest of the sound really unchanged? Or does passing the signal through the DSP circuit result in changes to the sound? Such as introducing some transistorised hash?
  14. How wide a front baffle would you be willing to put up with on your next speakers? The wider it is, the easier it will be to come up with options that will give you extended bass in quantity and quality.
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