I'm selling my M-Audio StudioPro 3 active/powered monitors. This series has 3" woofers, hence the name. 
They are in very good condition and functioning well. Please see photos for condition.

Included in this listing:
  • 2x StudioPro 3 Speakers (pair)
  • Speaker-to-speaker cable
  • Power cable
Any questions, just ask :)

FEATURES
  • 3.25" low-frequency drivers; 1" high-frequency drivers
  • Self-powered
  • Accurate frequency response and imaging
  • Advanced crossover design
  • Custom-tuned wood cabinet
  • Magnetic shielding prevents computer/video monitor interference
  • Vented port design for added bass
  • Transportable, compact design is ergonomic and flexible
  • Internal standing wave acoustic absorption for greater efficiency
  • Bass Boost switch
  • Factory programmed for worldwide use
  • RCA rear-panel inputs; convenient front-panel 1/8" inputs
SPECIFICATIONS

StudioPro 3 Desktop Audio Monitors

  • Type: 2-way desktop reference monitor
    LF driver: 3.25" diameter, magnetically shielded with curved cone with high-temperature voice coil
    HF driver: 1" diameter, magnetically shielded silk dome
    Frequency response: 100Hz “ 20kHz ±3dB)
    Crossover frequency: 2.3kHz
    Dynamic range (Maximum Signal-to-Noise Ratio): >80dB (typical, A-weighted)
    Input connectors: left and right line input connectors (RCA)
    Polarity: positive signal at + input produces outward low-frequency cone displacement
    Dynamic power: 10 watts into 4Î (per channel) at 0.5% distortion
    Input impedance: 10kÎ (unbalanced)
    Input sensitivity: 100mV pink noise input produces 90dBA output SPL at 1 meter with volume control at maximum
    Protection: RF interference, output current limiting, over temperature, turn on/off transient, subsonic filter
    Indicator: blue power LED ring around on/off/volume knob on front panel
    Power requirements: 100-120V50/60Hz, 220240V50/60Hz; powered via detachable 2-conductor line cord
    Cabinet: vinyl-laminated MDF
    Dimensions: 5.5"W x 7.9"H x 5.9"D
    Weight: 8.8lb./pair (approx., without packing)