MF 1000

Super Wammer Plus
  • Content Count

  • Joined

  • Last visited

  • Days Won


MF 1000 last won the day on March 27 2019

MF 1000 had the most liked content!

Community Reputation

1,229 Excellent

About MF 1000

  • Rank
    Now That's What I Call Bass !
  • Birthday 19/02/1961

Personal Info

  • Location
  • Real Name

Wigwam Info

  • Turn Table
    Rega Planar 2
  • Tone Arm & Cartridge
    Rega & AT95
  • SUT / Phono Stage
    Rega Fono
  • Digital Source 1
    Lector Digidrive
  • DAC
    Lector 2.24
  • Pre-Amp
    Type 26 Valve - SJS
  • Power Amp/s
    845 Monos, MF A370
  • My Speakers
    KEF 104.2 & Volt 18"
  • Trade Status
    I am not in the Hi-Fi trade

Recent Profile Visitors

3,880 profile views
  1. I've been wrestling with the multiple fixing bolts on this build over the post few days. Trying to align a heavy box (which is 15mm out if square) inside a square box etc and secure it in place whilst not distorting the external box is proving ....well let's say a challenge. My conclusion is that I'll never get them to align properly so it prob best to used all of the construction and bracing info I've gleaned from this journey and build a new super strong/braced cabinet to house the Volts. Im aiming for a slight increase in cabinet volume....160 litres as opposed to the 147 in the original cabinet with an 8 way bracing 'spider' holding the 30mm thick MDF panels (the spider held in place into machined grooves with biscuit joints) , which eventually will be clad in veneered in 18mm MDF giving a 48mm wall thickness. Hope to get the MDF from my 'local' supplier this weekend, then it's out with the router table for some heavy machining.
  2. And there is nothing quite like ...a serious rugging
  3. As an appreciator of organ music Jules if you havnt heard the Daniel Chorzempa recording of Boellmanns Toccata from Suite Gothique on the organ at West Point Cathedral search it out - the 64ft pipes are something to really test your bass response.
  4. Being on here and holding/attending bakeoff etc has definitely widened the genres of music I listen to and driven my cd collection within those genres. Equally tho the use of Spotify on my iPad prompts me to listen to new releases and similar artists etc that I would normally never if encountered......normally filling in the hours alone in hotel rooms or in airports etc - remember those days when we used to travel - lol
  5. Probably a factory PA speaker .....some will remember the phrase ' can you message him on the Tannoy' the days before mass use of phones it two way radios - even land lines it was the best way to contact staff in large factories
  6. The other effect to take into account is inertia. The movement of the driver cone(s) has to move air to create the sound ....air has very little or zero effective mass therefore it's inertia (resistance to movement is low) unless you are in a totally sealed room. There will be an effect based on the drivers area, hence smaller drivers are deemed faster as the volume of air they are displacing is lower, but this is also why (in general) the lowest frequency they can produce is higher and why bigger drivers need more power - think of the same sized engine trying to drive a mini at 70 mph or a large removals van. The mass of the speaker itself will have a greater effect as will the rigidity of the cabinet. In order to get the vibration conducted from the driver into the speaker cabinet to have an effect on the sound it produces the energy needs to overcome the mass of the cabinet in order to get it to move ....the higher the mass the more energy needed to move the cabinet (think of pushing that mini again - or the furniture van). Panel flexure can have another more complex effect particularly on low end reproduction ( more energy in low Hz frequencies). But if you could build a cabinet out of std A4 printer paper you would see the effects of the pressure waves from the rear of the driver cone move the paper sides with each bass thump etc. Regarding flexible isolation mounts the more flexible (and undamped) the mount and the lighter the cabinet potentially more movement of the speaker body could occur on the mounts and this would reduce the perceived power of bass notes etc (and for any flexible mount its prime effect will be on lower end issues) and a faster response amp/power delivery will also have an effect as it accelerates the driver cone(s) quicker overcoming the inertia in the speaker/mount setup. If you don't have neighbours etc and could split your speaker setup the ideal configuration would be heavy bass cabinets with large drivers ( mine are 18" and 250 lbs 😀) and the midrange etc in seperate enclosures mounted on springs/flexible mounts (to isolate them from the high energy bass notes being transmitted into the midrange driver which would cause it to oscillate with low frequencies as it was reproducing midrange frequencies) to reduce/stop smearing of the midrange. The current use of such flexible supports is to stop bass frequencies travelling through floors etc into adjacent rooms and/or cause suspended floors to act as a 'boom box' and impact on the low end reproduction, and it is this that can make the sound 'cleaner' ....on a solid floor the effects should be significantly lower or even nil. The reverse use of this sort of technology is in buildings like the Bridgewater Hall (concert venue in central Manchester) which was built on top of a sprung platform - not to isolate the concert from the surrounding area, but to stop the low frequency noise from the tram cars passing by entering the building and being amplified by the walls etc - a sort of speaker in reverse. Hope my early morning ramblings help/make sense
  7. You should also try the same test with the dti gauge on the side or rear baffles of a speaker ....panel vibration can equally affect sound quality .....some manufacturers even claim to use panel flexure to provide the sonic signature of their speakers - quite bizarre imho
  8. That was always a gripe with MC7s a little too much gain .....whereas the Type 26 DHT preamp that replaced it is the opposite but it blew away the Ming even with the PSvane WE rectifier and Mullards etc
  9. Well the rectifier is in the power supply circuit for the valves so endless debate is possible for those who say power supplies have no
  10. And now you've set off the valve version of the LPS DAC debate James ... ill look back at this thread in 3 weeks time .....100 pages... two 'holidays' for irate wammers etc 😁😁😁😁
  11. Small word of caution James ....the acrylic top will not dissipate heat in the same way as the original metal plate, so have a check of the internal temp after a long listening sesssion - you might need to add some extra slits or small holes to aid cooling.
  12. With Vu meters .....oooooooooooo 😁😁
  13. ...crap signal - perfect amp - perfect speakers = crap sound perfect signal - mediocre amp - mediocre speakers = mediocre crap sound