MF 1000

Super Wammer Plus
  • Content Count

    3,813
  • Joined

  • Last visited

  • Days Won

    2

MF 1000 last won the day on March 27 2019

MF 1000 had the most liked content!

Community Reputation

1,032 Excellent

About MF 1000

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

Personal Info

  • Location
    Caego
  • Real Name
    Keith

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

3,680 profile views
  1. As I recall for the A370 the best path was less reservoir capacitance ( bear in mind it has 176 000 uF per channel) and increasing the size of the transformers - Jon said MF had heat issues with the original design with this combo and case fans in the 1980s were very noisy etc, but much bigger transformers housed in a seperate enclosure would work wonders and remove a major heat source from the main body of the amp - incidentally this is the route they went with the likes of the A1000, A1008, KW series etc in later years.
  2. It would also depend on the power output of the ultrasonic transducer(s) used. I developed a cleaning system for dicing equipment in the food industry in conjunction with a ultrasonic equipment manufacturer. I cannot recal the wattage used etc but the company also made systems for breaking down thick oil sludge using several transducers in rings around a 6" pipe....it had loads of power and needed a special acoustic enclosure !! Another factor to take into account is if your item being cleaned is static in the fluid more cavitation will occur, so a slowly rotating LP reduces the cavitation level which slows the cleaning by ultrasonic action but allows a chemical soak to occur aswell. Some advanced systems will pulse the transducers to vary the cleaning cycle or use slow stirring systems to both control excessive cavitation and allow fresh fluid to contact the surfaces being cleaned.
  3. Strikes me that some quoted loudspeaker responses compared to how they sound in your lounge are about as accurate as VW emissions/mpg data was to what happened in real life motoring
  4. Any relation between the A300 integrated and the A370 dual mono power amp is limited to the makers name only really. Of its genre the A3cr pre and A3 power amp combo was far better and could I believe be monoblocked to run two A3's to good effect. Always bear in mind the 'house style' of MF amps was a warm almost valve amp like sound as opposed to the clinical strike of Audiolab etc.
  5. I love my 45 Kg lump of MOSFETs 😀😀 i did speak to Jon not long after I acquired it (2012) and a rebuild like you've described was approx £1000 or more if you opted to go to bigger transformers in an external enclosure - but the effects were apparently night/day etc. He knows his stuff on MF kit and MOSFETs in general. He could probably do the upgrade in stages replacing the caps/trannys as a 'Stage 2'
  6. Is that the upgraded A370 in the pic David ?
  7. When I was first introduced into hifi in the early 1980's a guy in the office had a Planar 2, Quad II monoblocks and Rogers LS BBC monitors.....wired with 13amp mains flex
  8. Maybe do a list of genres, no of CDs in each and some example albums etc and a guide price ...but I guess you will also have to be open to offers too
  9. Drilled out the mounting holes in the copper today then fitted the sockets and solder tags etc. Connections made between the interface box and the speaker cabs (variety of cable used ...but will change to one type later). satisfied with the outcome as it's made behind the speakers tidier etc One down ....three more to do now
  10. MF 1000

    AC Panel Meter

    If you want to monitor your input voltage to your kit there are quite a few plug in units available on eBay for £15 ish and they will give you power information too
  11. Sold quite a few interconnects and my Trichord DAC and replaced all my interconnects with quad core Mogami. With spare time in between video meetings & conferences I've been able to replace & re route multiple speaker cables and make my Sound Organisation rack more like a piece of furniture. Deoendimg on how long we are now locked down I've plans to replace my main rack with one using reclaimed scaffold planks & slate and start on the final layer of enclosure around my Volt 18" bass speakers.
  12. I have bucking transformers feeding my 220v 845 monoblocks
  13. My fully active 5 way speaker setup running off two sets of monoblocks, 1 power amp and 2 class D mini integrated amps requires multiple speaker cables from two seperate racks. This has the potential to create a rats nest of cabling and multiple runs of cable across the lounge floor (in front of the fireplace) etc was not the best look - even though Jane is quite relaxed about my hifi obsession etc. A couple of weeks ago I purchased 24 metres of 8 core (2.5 mm per core) 'tour grade' cabling from Canford Audio with a view to running two lengths to each side allowing me to run multiple cores for bass and single for the other drivers. This cable is a bit of a beast at 16mm dial and quite stiff, but I've been able to route it behind racks and along the shelf above the fireplace etc ....and being black it almost dissappears. For my initial hookup I used terminal strip to link the speaker cable to the cables from each amp, but I had a plan to provide 'local' connection boxes in place of the terminal strips. I then ordered a boat load of 'nakamichi' phono plugs and reasonable quality sockets to give me 5 pairs of connections at each end of the umbilical. I had some 30mm walnut in the garage, some 3mm copper plate and along with some 19 x 44mm oak from eBay set about making some boxes to hold the 5 pairs of phono sockets. Today I finished off the boxes 😀 Here they are complete with gland connections to allow each of the multicore cable runs, now waiting for me to fit the phono sockets. The waxed walnut/oak looks good I think with the copper plate to house 10 phono sockets. Watch this space for the next stage
  14. I've just used this https://www.canford.co.uk/Products/2003389/33-851_CANFORD-MCS-LFH-CABLE-8-core to cable up my multi driver active setup if you have a hankering for multi core speaker cable - only used two cores for my 845s and no instability problems and soundwise all is good. Plus at £7 per m ex vat it's a steal, and fraction of the cost of kimber. Downside is it's 16mm thick and quite stiff
  15. Two weeks in to listening to the preamp ....what's your views now Lee