140 VOLTS fed to speaker

joeparaski
joeparaski Posts: 1,865
edited June 2008 in The Clubhouse
That's what my tech guy measured on the amp the destroyed my 3.2 tl recently.

The upstairs system is up and running thanks to some club Polk members. The amp will be repaired and returned to service.

Damage was done only to the right side speaker. The crossover survived and and left side SDA speaker is ok.

Joe
Amplifiers: 1-SAE Mark IV, 4-SAE 2400, 1-SAE 2500, 2-SAE 2600, 1-Buttkicker BKA 1000N w/2-tactile transducers. Sources: Sony BDP CX7000es, Sony CX300/CX400/CX450/CX455, SAE 8000 tuner, Akai 4000D R2R, Technics 1100A TT, Epson 8500UB with Carada 100". Speakers:Polk SDA SRS, 3.1TL, FXi5, FXi3, 2-SVS 20-29, Yamaha, SVS center sub. Power:2-Monster HTS3500, Furman M-8D & RR16 Plus. 2-SAE 4000 X-overs, SAE 5000a noise reduction, MSB Link DAC III, MSB Powerbase, Behringer 2496, Monarchy DIP 24/96.
Post edited by joeparaski on

Comments

  • mrbigbluelight
    mrbigbluelight Posts: 9,878
    edited June 2008
    I'd recommend holding the line voltage going to your speakers to 110v ... maybe 115, but no more.

    :eek:


    Ouch !


    Which amp did you have driving the 3.1 tl ?
    Sal Palooza
  • joeparaski
    joeparaski Posts: 1,865
    edited June 2008
    I'd recommend holding the line voltage going to your speakers to 110v ... maybe 115, but no more.

    :eek:


    Ouch !


    Which amp did you have driving the 3.1 tl ?


    An older Bose 1800, it's rated at 250 wpm at 8 ohm. I guess it was tired.

    Joe
    Amplifiers: 1-SAE Mark IV, 4-SAE 2400, 1-SAE 2500, 2-SAE 2600, 1-Buttkicker BKA 1000N w/2-tactile transducers. Sources: Sony BDP CX7000es, Sony CX300/CX400/CX450/CX455, SAE 8000 tuner, Akai 4000D R2R, Technics 1100A TT, Epson 8500UB with Carada 100". Speakers:Polk SDA SRS, 3.1TL, FXi5, FXi3, 2-SVS 20-29, Yamaha, SVS center sub. Power:2-Monster HTS3500, Furman M-8D & RR16 Plus. 2-SAE 4000 X-overs, SAE 5000a noise reduction, MSB Link DAC III, MSB Powerbase, Behringer 2496, Monarchy DIP 24/96.
  • audiobliss
    audiobliss Posts: 12,518
    edited June 2008
    Oh wow. I s'pose that'll do it!

    But, need I even say it? What'd you exPECT with that amp?!?!

    :D
    Jstas wrote: »
    Simple question. If you had a cool million bucks, what would you do with it?
    Wonder WTF happened to the rest of my money.
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  • Phasearray
    Phasearray Posts: 437
    edited June 2008
    Hmmm I wonder how this is possible. 140V going into the amp or out of the amp?

    140V going into the amp = 140/8 17 amps into the speaker. Or 2400 watts.
    Receiver - Onkyo HT-R340
    Front - Pioneer S-HF21
    Center -Onkyo SKC-340C
    Surround Back - Polk R15 <--Ticket to club polk
    Subwoofer - Onkyo SKW-340
  • BaggedLancer
    BaggedLancer Posts: 6,371
    edited June 2008
    I bet it sounded badass while it worked. :D
  • joeparaski
    joeparaski Posts: 1,865
    edited June 2008
    The amp should be ready this evening. My tech guy found a service bulletin referring to this type of failure and the fix to prevent it. I'll get it done to my other 2 Bose 1801 amps.

    He also serviced my SAE 2500 amp that was cutting out. Adding new binding posts, rca connectors and upgraded power cord.

    Joe
    Amplifiers: 1-SAE Mark IV, 4-SAE 2400, 1-SAE 2500, 2-SAE 2600, 1-Buttkicker BKA 1000N w/2-tactile transducers. Sources: Sony BDP CX7000es, Sony CX300/CX400/CX450/CX455, SAE 8000 tuner, Akai 4000D R2R, Technics 1100A TT, Epson 8500UB with Carada 100". Speakers:Polk SDA SRS, 3.1TL, FXi5, FXi3, 2-SVS 20-29, Yamaha, SVS center sub. Power:2-Monster HTS3500, Furman M-8D & RR16 Plus. 2-SAE 4000 X-overs, SAE 5000a noise reduction, MSB Link DAC III, MSB Powerbase, Behringer 2496, Monarchy DIP 24/96.