Yama P2201 I switched it on heard a thump speakers blown


Dont worry the speakers were only Beovox S30.

The loud thump was not bassy but more of a midrange sound.

What is wrong with this Yamaha P2201 and how do I fix it?

Answers

  • tonybtonyb Posts: 29,742
    Might be best to tell us first how you hooked everything up.
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    Tad 803 bookies
    Polk 500 surrounds
    Polk s35 center
    SVS SB-2000
    Sonos

    Music-

    Joule la-100 pre
    B&k 1430 amp
    Cary xciter dac
    Cullen modded Sonos
    ERA D5 bookies

    Cables-
    Acoustic zen Satori speaker cables
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • g7traderg7trader Posts: 39
    Hooked up everything the normal way as usual
  • motorstereomotorstereo Posts: 832
    I don't believe there's a speaker relay on that model. Use a multimeter and check for dc voltage at the speaker terminals.
  • verbverb Posts: 3,305
    edited October 3
    Hey great title to this thread! I had to chuckle when I first read it. Sorry for your loss! :smile:

    Seriously we need more details. We’re here to help.
    Basement: Polk SDA SRS, Micro Seiki MB14 TT, VTL 2.5 Pre, Marantz CD6006 CDP, Conrad Johnson MF2300A Amp, Furman 15PFi Power Conditioner, AQ Diamondback (version 1) RCA IC's, MIT Terminator2 Cables
    Office: PC, Marantz AMP-1, Acoustic Technologies Classic Speakers, Polk PSWi225 wireless sub, MIT AVt2 cables, IFI Purifier2, AQ Cinnamon USB cable
    Spare Room: Dayens Ampino Integrated, Auris BluMe, Polk TSi200's
    Living Room: Pioneer SX-N30 Network Receiver, Pioneer PD10AE CD Player, Furman M8-LX Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi Subwoofer
  • g7traderg7trader Posts: 39
    Which details do you need?
  • mhardy6647mhardy6647 Posts: 18,974
    Check for DC on the outputs. A bad driver or output transistor could be passing all or part of one of the DC "rail" voltages straight to your speakers, with catastrophic results.

    The other, very real possibility, that comes to my mind is that there's a severe, but transient, imbalance in the power supply at turn-on that results in a very low frequency (or DC) voltage before the amp stabilizes. Many solid state amplifiers have relays to protect the speakers from such things, but yours apparently does not. In such cases, speakers make excellent fuses (unfortunately).
  • g7traderg7trader Posts: 39
    How do i check dc voltage? Its time I learned how to use a multi meter....
  • mhardy6647mhardy6647 Posts: 18,974
    edited October 4
    g7trader wrote: »
    How do i check dc voltage? Its time I learned how to use a multi meter....
    http://audiokarma.org/forums/index.php?threads/amplifier-distortion-dc-offset-and-you.5634/

    No signal applied to amp, no speakers connected, amp output to speaker terminals "on".
    Measure for DC voltage across each channel's output terminals. Red lead of DMM to positive terminal, black to negative. Value should be very close to zero volts (see the AK sticky for info).

  • tonybtonyb Posts: 29,742
    Take it to a qualified repair shop. Get an estimate, then decide if it's worth fixing or used as a boat anchor.
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    Tad 803 bookies
    Polk 500 surrounds
    Polk s35 center
    SVS SB-2000
    Sonos

    Music-

    Joule la-100 pre
    B&k 1430 amp
    Cary xciter dac
    Cullen modded Sonos
    ERA D5 bookies

    Cables-
    Acoustic zen Satori speaker cables
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • mhardy6647mhardy6647 Posts: 18,974
    tonyb wrote: »
    Take it to a qualified repair shop. Get an estimate, then decide if it's worth fixing or used as a boat anchor.

    This is the best answer of all.
  • g7traderg7trader Posts: 39
    tonyb wrote: »
    Take it to a qualified repair shop. Get an estimate, then decide if it's worth fixing or used as a boat anchor.

    He said £70 but I rather fix it myself.

    I fix all speakers a Beogram 4002 and a few other repairs by luck.

    My Dad found two dead capacitors probably using a multimeter but he is psycho and has bad communication skills he used tippex and wrote all over the amp 'don't use will kill speakers'

    If anyone wants to see photos instagram same username.
  • mhardy6647mhardy6647 Posts: 18,974
    edited October 4
    "Haven't used a DMM" + "fix it myself" =

    85idh13x7has.png

    Spend the 70 quid & get it properly repaired and calibrated. The P2201 is probably a worthwhile investment for repair.
  • tonybtonyb Posts: 29,742
    Spend the coin, fixing the amp, or spend more coin fixing the speakers. Your call.
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    Tad 803 bookies
    Polk 500 surrounds
    Polk s35 center
    SVS SB-2000
    Sonos

    Music-

    Joule la-100 pre
    B&k 1430 amp
    Cary xciter dac
    Cullen modded Sonos
    ERA D5 bookies

    Cables-
    Acoustic zen Satori speaker cables
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • motorstereomotorstereo Posts: 832
    Even if you fix what's broken it's still an amp with no dc protection and still capable of ruining speakers or worse yet starting a fire. I say chalk it up to experience and use this as excuse to find a better amp.....preferably one that isn't a fire hazard.
  • g7traderg7trader Posts: 39
    This is the best there is better sounding than my Pioneer SA-9500, Rotel RX802 and Philips black tulip
  • codycatalistcodycatalist Posts: 1,613
    The early Adcom GFA series don't have relays either. I like to live dangerously.
    Living room

    Mains: Paradigm 90P
    Lows: Velodyne CHT12, Pioneer SW-8Mk2
    Power: Marantz SR7000
    Tv: Samsung UHD 55' Curved 4k

    2 Channel Den

    Mains: SDA2B Upgraded XOs and Binding Posts
    Pre: Denon PRA-1200
    Power: Adcom GFA-545
    TT: Pioneer PL510
    Tv: Samsung UHD 55' 4K

    Noggin Rockin'

    Phillips L2
    Grado SE80
    Harman Kardon CL
    Little dot 1+/GE JAN 5654w

    Closet of Dreams:

    Harman Kardon AVR130
    Yamaha HTR5590
    Polk RTA11TL
    Polk TSI200s
    New Large Advents 25th Anniversary Edition
    Bravo V2/RCA Clear top Conn branded 12AU7
    Yamaha AV-34

    "Temptation is the manifestation of desire which equals necessity." - Mikey081057
    " I have always had a champange taste with a beer budget" - Rick88
    "Just because the thread is getting views don't mean much .. I like a good train wreck doesn't mean i want to be in one..." - pitdogg2
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  • mhardy6647mhardy6647 Posts: 18,974
    ... like the ol' Flame Linears.

    :)


  • mdaudioguymdaudioguy Posts: 4,611
    g7trader wrote: »
    If anyone wants to see photos instagram same username.

    Ah, so you sell Hi-End Audio Equipment on eBay...

    7.1 - polk RTi10 x 3 (LCR) : FXi3 x 2 : RTi4 x 4 : Sunfire SDS-12 : Yamaha Aventage RX-A2040 : Adcom GFA-7500 : Squeezebox Touch : DIRECTV : Roku SE : Panasonic PT-AX200U PJ @ 120"
    5.1 - Definitive Technology ProMonitor 800 x 4 : ProCenter 1000 : Klipsch Sub-10 : Pioneer Elite SC-91: DIRECTV : LG OLED55B6P : Roku Premiere+
    Garage Duty - polk Monitor 10s : Pioneer A-717 Integrated Amp : Squeezebox Classic
  • FestYboyFestYboy Posts: 2,762
    g7trader wrote: »
    This is the best there is better sounding than my Pioneer SA-9500, Rotel RX802 and Philips black tulip

    Lives in England, doesn't speak English... Or at least can't construct a proper sentence.

    Loving the idea that his repairs are done with luck... :|
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