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Multi-Way Conventional loudspeakers with crossovers

Replacement subwoofer for Pinnacle ac 850
Replacement subwoofer for Pinnacle ac 850
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Old 17th April 2018, 09:44 AM   #1
phirius is offline phirius  United States
diyAudio Member
Join Date: Aug 2016
Default Replacement subwoofer for Pinnacle ac 850

A few years ago I picked up a pair of Pinnacle ac 850’s from Craigslist and I must say they are fantastic! A bit light on the bass for my taste but they sound perfectly crisp.

A few days ago at a small house party they amplifier got turned up too high and the subwoofers got blown out (they no longer function, painful scratching noise when pushing them in). What drivers will make a good replacement for the subwoofers? Also, I have them paired with a Yamaha rx-v381 amplifier giving 2 channels ~70watts at 8ohm, so they’re somewhat underpowered. I’m also taking recommendations on amplifiers, but am trying to keep my spending to a minimum!

Pinnacles doesn’t seem to give out much information about the driver, but their website gives:

“Component Drivers:

1" liquid cooled aluminum dome tweeter

8" fibercone woofer with rubber surround

Frequency Response: 30-21 kHz (+/- 3 dB)

Crossover Frequency: 2.2 kHz

Recommended Amplifier Power: 15-250 Watts RMS per channel

Operative Power Range: 5-125 Watts RMS Continuous, 375 Watts Peak

Sensitivity: 93 dB (2.83 Volts Pink Noise @ 1 Meter)

Nominal Impedance: 8 Ohms

Dimensions: 9 5/8" Wide x 25 5/8" High x 10 3/4" Deep”

Apologies if this is in the wrong forum

Last edited by phirius; 18th April 2018 at 03:16 AM.
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