Meyer Sound 650P Amplified Subwoofer Speakers in good condition. 

The 650-P is a self-powered, tuned, bass-reflex subwoofer that uses two 18" drivers, capable of long excursion with minimal distortion. The unit extends the lower range of Meyer Sound reinforcement systems by providing a frequency response of 28 to120 Hz. Being self-powered, the amplifiers and control electronics are fully contained within the speaker enclosure.

Features:
- Integrated control electronics and Audio amplifiers
- TruPower™ Limiting (TPL)
- Intelligent AC™ System
- Compatible with the Remote Monitoring System™ (RMS)
- High power
- Extremely low distortion
- Reliable and durable
 

Specifications:
- Acoustical(each loudspeaker):
- Frequency Response: ±4 dB from 28 Hz to 100 Hz
- Phase Response: ±30° from 45 Hz to 145 Hz
- Maximum SPL: 136 dB @1 meter
- Dynamic Range: >110 dB
- Coverage: (-6 dB points) 360°H ; 180°V
- Transducers: Low Frequency 18" diameter MS-18 cone (2)
 

Audio Input:
- Type: 10kΩ impedance, electronically balanced
- Connector: XLR (A-3) male and female
- Nominal input level: +4 dBu
- Amplifiers
- Type: Complementary power MOSFET output stages (audio class AB/H)
- Burst capability: 1240 watts (620 watts/channel)
- THD, IM, TIM: < .02 %
 

AC Power:
- Connector: 250V NEMA L6-20P (twistlock) inlet or IEC 309 male inlet
- Automatic voltage selection: 95-125 VAC and 208-235 VAC; 50/60 Hz
 

Operational voltage range:
- Turn on: 85 VAC; Turn off: 134 VAC; 50/60 Hz
- Turn on: 165 VAC; Turn off: 264 VAC; 50/60 Hz
- Max.Continuous RMS Current (>10 sec): @115 V: 8A @230V: 4A @100V: 10A
- Burst RMS Current (<1 sec): @115 V: 15A @230V: 8A @100V: 18A
- Max Peak Current During Burst: @115 V: 22Apk @230V: 11Apk @100V: 25Apk
- Soft-Current Turn-on: Inrush current <12A@115V
 

Physical
- Dimensions: 30" W x 45" H x 22 1/2" D
- Weight: 221 lbs (100 kg) / shipping: 250 lbs (113 kg)
- Enclosure: Multi-ply hardwood
- Finish: Black textured
- Protective Grill: Perforated metal grill, charcoal-grey foam