Blown woofer

[wlmdx]

Hi all,

I have 2 woofers blown on my Lsi 15 this week on a different day. My amp is Simaudio i-5 integrated. A few minutes ago, I heard a big "pop" coming from the speakers and the light on the amp came on automatically (the amp was on standby mode,but gets very hot). I immediately shut off the amp and heard another "pop". I turned on the amp again and played some music but noticed that the woofer is making a "clicking" noise. I had the other woofer blown the other day? What is the cause? Do I have a bad amp or I have bad electricity(voltage drop???) Please help!!

[F1nut]

You've got a bad amp, maybe a DC voltage problem. No way it should be hot in standby mode.

[danger boy]

is that amp rated to drive 4ohm speakers?

[wlmdx]

The amp is rated to drive 4 ohms speakers. This is the Specifications:

Type Solid State
Configuration Dual Mono (partial)
Power Supply Transformer 0.5kVA
Power Supply Capacitance 40,000µF
Class of operation - Preamplifier A
Class of operation - Amplifier A/AB
Single Ended Inputs (RCA) 5 pairs
Input Device Types - preamp J-FET
Input Sensitivity 300mV - 3.0V RMS
Input Impedance 14,000 ohms
Tape Output 1 pair
Preamplifier Output 1 pair
Output Device Types - Amplifier Bipolars - 2 per channel
Output Binding Posts WBT (shielded)
Output Power @ 8 ohms 70 Watts per channel
Output Power @ 4 ohms 110 Watts per channel
Output Impedance 0.04 ohms
Damping Factor > 200
Gain Control RBG cs version
Gain 30dB
Dynamic Headroom 3dB
Signal-to-noise Ratio 97dB @ full power
Maximum Output Voltage 23.5 Volts
Slew Rate 20V/µs
Maximum Current - Peak 16 amperes
Maximum Current - Continuous 9 amperes
Frequency Response 10Hz - 70kHz (+0/-3dB)
Crosstalk @ 1kHz -50dB
IMD unmeasurable
THD (20Hz - 20kHz @ 1 watt) < 0.1%

Thanks.