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Thread: Please help clear up a question about MONOBLOCKS

  1. #11
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 26,854
    I'm Geoff.

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    Quote Originally Posted by Yomanze View Post
    Are there advantages with seperate power supplies for each channel? Yes.
    Not if the amplifier is designed properly.
    Mr. Tact!

    Main system: MMs/ADCs/Low output MC's/One rare Japanese SUT/One scarce British phono stage/various tonearms/hefty Japanese DD TT and hefty Japanese BD TT and small British BD TT. 4 CD players/2 jitter buster/2 DACs/Valve buffer. TVC stepped attenuator or valve pre-amp or solid state pre-amp. Current dumping power-amp or either of two Class A SS power-amp or Class A EL34 valve monos or big Japanese (part Class A) integrated. Big dual concentric speakers/Smaller dual concentric speakers/Two way British compacts and full range speakers, amongst others. And too much more to list!

  2. #12
    Join Date: Sep 2009

    Location: west mids, UK

    Posts: 1,292
    I'm Phil.

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    Quote Originally Posted by Bigman80 View Post
    I've just googled your MSB s200 and it looks phenomenal!! Looks to be dual mono ?
    yes its a phenomenal amp , the msb monoblocks made quite an impression on many somewhile back and then they bought out this stereo version which is just beautiful. almost valvelike but with none of the drawbacks . its remote control and deadly quiet too .
    modwright 36.5 DM /MSB s200 , / Marantz sa8005/bel canto 3.5, vbs , bel canto fm1
    sonos, . dct300/ /isotek sigmas /rfc/chord epic cabling/Kimber select/ proac studio 125

  3. #13
    Join Date: Apr 2015

    Location: Central Virginia

    Posts: 505
    I'm Russell.

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    Yes I think Monoblocks are used to solve weight problems. The new top drawer Krell's are in 4 cabinets. Each channel has its own power cabinet, and then amp cabinet. Each weighs close to the limits of the shipping companies.

    Theoretically there are sonic improvements with monoblocks, they have total channel separation, do not share a transformer, or capacitor storage, or even an electrical circuit if you wire the house up that way. So in theory they are better, but those advantages could be hard to discern when comparing to the best of the one box amps. Perhaps if you have a very large room using very large and consumptuous speakers, it's advantages would be more easily revealed? Perhaps most of us just don't have the need for the extra performance a monoblock brings?


    Sent from my iPad using Tapatalk

  4. #14
    Join Date: Jan 2013

    Location: Birmingham

    Posts: 2,999
    I'm James.

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    I found monoblocks do make a difference but not sure if it was a difference I wanted. Sure if you want more power to drive large speakers in a large room then they maybe better. However I have heard very good stereo power amps do the same without a problem.

    You get less crosstalk with mono block amps which in theory means you may get a slight improvement in precision and detail in the sound, probably most noticeable on vocals. You also get an ease to the music which is hard to quantify but is there none the less. Separate power supplies also a useful thing to have but again not always necessary if you have a well designed power amp.

    I really think I would only use them to answer my first point, that being driving large speakers with awkward loads in big rooms.
    VPI Scout 1.1 / JMW 9T Tonearm / 2M Black /Croft 25R+ / Croft 7 / Spendor SP2

  5. #15
    Join Date: Dec 2015

    Location: vancouver

    Posts: 642
    I'm danilo.

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    Labels getting me mixed up ?
    Are not Mono blocks..Two separate Single channel Amps with their own everything.. including power cords?
    Dual mono being two separate Single channel amps in one case sharing only a Power transformer and it's secondaries ?
    Difference between the 2 being ; a case and individual Power tx's?
    What does one label the rest of amp configurations.. ?
    My audio bits: Thorens / diy phono, CD/dvd player(s), diy pre, F6, Tannoy Golds in my boxes / my xovers, and of course all strung together with basic diy Wires
    Lots of Cd's, yet more audio files, a couple of hundred semi worn Lps.

  6. #16
    Join Date: Oct 2012

    Location: NE England

    Posts: 4,378
    I'm Jez.

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    I wrote a pretty long post addressing advantages and disadvantages in detail about 6 months ago... gawd knows exactly where on the site but it's there.
    Arkless Electronics-Engineered to be better. Tel. 01670 530674 (after 1pm)

    Modded Thorens TD150, Audio Technica AT-1005 MkII, Technics EPC-300MC, Arkless Hybrid MC phono stage, Arkless passive pre, Arkless 50WPC Class A SS power amp, (or) Arkless modded Leak Stereo 20, Modded Kef Reference 105/3's
    ReVox PR99, Studer B62, Ferrograph Series 7, Tandberg TCD440, Hitachi FT-5500MkI, also FT-5500MkII
    Digital: Yamaha CDR-HD1500 (Digital Swiss army knife-CD recorder, player, hard drive, DAC and ADC in one), PC files via 24/96 sound card and SPDIF, modded Philips CD850, modded Philips CD104, modded DPA Little Bit DAC. Sennheiser HD580 cans with Arkless Headphone amp.
    Cables- free interconnects that come with CD players, mains leads from B&Q, dead kettles etc, extension leads from Tesco

  7. #17
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 26,854
    I'm Geoff.

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    Quote Originally Posted by danilo View Post
    Dual mono being two separate Single channel amps in one case sharing only a Power transformer and it's secondaries ?
    Dual mono is separate everything except case. Including separate power transformers. Trio (Kenwood) and Harman Kardon did this amongst others.
    Mr. Tact!

    Main system: MMs/ADCs/Low output MC's/One rare Japanese SUT/One scarce British phono stage/various tonearms/hefty Japanese DD TT and hefty Japanese BD TT and small British BD TT. 4 CD players/2 jitter buster/2 DACs/Valve buffer. TVC stepped attenuator or valve pre-amp or solid state pre-amp. Current dumping power-amp or either of two Class A SS power-amp or Class A EL34 valve monos or big Japanese (part Class A) integrated. Big dual concentric speakers/Smaller dual concentric speakers/Two way British compacts and full range speakers, amongst others. And too much more to list!

  8. #18
    Join Date: Apr 2017

    Location: Cheshire UK

    Posts: 113
    I'm Martin.

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    I like the idea of monoblocks as in laymans terms the separation of boxes with a more specific duty appeals to me. It always has as it just seems to make sense to separate the channels as much as possible and have one power supply/circuit covering one channel only.

    I will be getting a passive pre and matching power amplifier this year with plans to upgrade to a pre with outputs for bi amping (and even tri amping...not fully sure how that works but it sounds like great one upmanship )

    I am in touch with my hype meter and Im not sure if I could hear the difference in my price area between a well designed one box power and mono blocks. I am not an amplifier designer so could easily be persuaded that it reduces conflict issues and makes things pure.

    I have to be honest that Im probably more in love with equipment that looks as though it means the business so I can say look Ive got a six pack I will be finding a good dealer and getting home trials with online ordering.

    Cheers Martin

  9. #19
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 26,854
    I'm Geoff.

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    I don't personally care these days. Mono's, dual monopower amp, stereo power amp, integrated. As long as the sound is right. I've owned each type. Designed properly, they should perform as well as each other.
    Mr. Tact!

    Main system: MMs/ADCs/Low output MC's/One rare Japanese SUT/One scarce British phono stage/various tonearms/hefty Japanese DD TT and hefty Japanese BD TT and small British BD TT. 4 CD players/2 jitter buster/2 DACs/Valve buffer. TVC stepped attenuator or valve pre-amp or solid state pre-amp. Current dumping power-amp or either of two Class A SS power-amp or Class A EL34 valve monos or big Japanese (part Class A) integrated. Big dual concentric speakers/Smaller dual concentric speakers/Two way British compacts and full range speakers, amongst others. And too much more to list!

  10. #20
    Join Date: Oct 2012

    Location: NE England

    Posts: 4,378
    I'm Jez.

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    Quote Originally Posted by Arkless Electronics View Post
    I wrote a pretty long post addressing advantages and disadvantages in detail about 6 months ago... gawd knows exactly where on the site but it's there.
    IIRC I also went into when 2 and 3 box solutions to things like phono stages, pre amps, power amps etc were definitely a good idea, mainly marketing or even a bad idea at some length as well in the same thread.....
    Arkless Electronics-Engineered to be better. Tel. 01670 530674 (after 1pm)

    Modded Thorens TD150, Audio Technica AT-1005 MkII, Technics EPC-300MC, Arkless Hybrid MC phono stage, Arkless passive pre, Arkless 50WPC Class A SS power amp, (or) Arkless modded Leak Stereo 20, Modded Kef Reference 105/3's
    ReVox PR99, Studer B62, Ferrograph Series 7, Tandberg TCD440, Hitachi FT-5500MkI, also FT-5500MkII
    Digital: Yamaha CDR-HD1500 (Digital Swiss army knife-CD recorder, player, hard drive, DAC and ADC in one), PC files via 24/96 sound card and SPDIF, modded Philips CD850, modded Philips CD104, modded DPA Little Bit DAC. Sennheiser HD580 cans with Arkless Headphone amp.
    Cables- free interconnects that come with CD players, mains leads from B&Q, dead kettles etc, extension leads from Tesco

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