THIS LISTING IS FOR A PAIR (2 SPEAKERS) OF ACOUSTIC RESEARCH AR9 SPEAKERS. They are fully functional and have no issues. I have owned them for about 12 years. For those of you that know what you are looking at, you also know that these represent the best (flagship) speakers from Acoustic Research. The company that invented the acoustic suspension. These speakers have been well taken care of and most of the drivers were professionally upgraded by someone with over 40 years of experience in the speaker building and repairs, thus keeping the original “sound signature” that these are so famous for. The original woofers that they came with are known to dry rot and the tweeter was the weakest link of the system. They were replaced with professional grade drivers! Cast frames (not cheap stamped frames like the originals) for the woofers and compression drivers for the tweeters. Crossovers are all original. Due to their age the cabinets show a few minor marks as well as the grills but no dents or rips nothing that deter from their look. The drivers that were used as replacements are listed below. These speakers are truly a delight to listen to, and it breaks my heart to have to part with them, but due to retirement and downsizing I will have to make do with bookshelf speaker for the foreseen future due to lack of space to enjoy them to their fullest potential. To come close to the fidelity/ sound of these speakers, today you’d have to spend well over 10K on a pair of speakers and these AR 9 SPEAKERS are ready for years to come. These speakers play with real authority and will handle “a lot” of power cleanly and sound amazing at both low and higher power levels. PLEASE VIEW PICTURES CLOSELY AS THEY ARE PART OF THE DESCRIPTION. I will help the new owner load them with a dolly. The Peavey 1208-4 SPS BWX driver series represents a newlevel of power and performance for Black Widow loudspeakers. The BWX series uses a new cone that is avariation on the existing Kevlar impregnated cones used on all Black Widows andis stronger, tougher, and highly water resistant. Power capacity: 2000 W peak, 1000 W program, 500 W continuous. Sensitivity: 96.6 dB / 1 W 1 m. Range: 50 Hz 3.5 kHz. The BWX series uses a new cone that is a variation on the existing Kevlar impregnated cellulose cones used on all Black Widows and is stronger, tougher, and highly water resistant. Packed Weight: 18.5 lb (8.39 kg). Packed Length: 16 (40.64 cm). Packed Width: 15.25 (38.73 cm). Packed Height: 6.5 (16.51 cm). Voice Coil Cooling: Ferrofluid. Net Weight: 33.6 oz. Horn Coupling Threads: Standard 1 3/8″ / 18″. 938 (23.8 mm). Dimensions: 3.54″ (90 mm) diameter x 2.40″ (61 mm) depth. Flux Density: 11,500 gauss (1.15T). Voice Coil Material: Edge-wound ribbon with high temp Kapton bobbin. Voice Coil Diameter: 1.4 / 34.4 mm. Diaphragm: Commercially pure titanium. Lowest Recommended Crossover: 2,000 Hz at 12 dB / Octave. Recommended Crossover: 1,800 Hz at 12 dB / Octave. Frequency Response: 1.5 kHz to 20 kHz. Sensitivity: 104 dB SPL 1 Watt at 1 meter On-axis on 90º H x 45º V horn. Power Capacity 1000 Hz to 20,000 Hz: 120 W peak60 W program30 W continuous. DC Resistance: 6.8 Ohms. Minimum Impedance: 7.1 Ohms. Nominal Impedance: 8 Ohms. 938 / 23.8 mm. Packed Weight: 2.26 lb (1.02 kg). Packed Length: 4.25 (10.79 cm). Packed Width: 4.25 (10.79 cm). Packed Height: 3.25 (8.26 cm).