On Stage Visuals
Providing Quality Products & Service for the Entertainment Community Since 1985


DJ Lighting • Stage Lighting • Club Lighting • Commercial Lighting • Sound Systems • Event Production

Speakers - Monitors
Item Description

Mackie - SRM450
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Mackie - SRM450 - Powered Speaker

  • 2-way bi-amplified, optimized active system
  • Built-in precision 24dB/oct. Linkwitz-Riley electronic crossover
  • High-output precision titanium compression driver
  • 300mm long-throw low frequency transducer
  • Studio-quality maximum dispersion horn design
  • High SPL Output/Low Distortion
  • Electronic Time Correction, Phase Alignment, & Equalization
  • Servo Feedback controlled woofer
  • Tough, impact-resistant, lightweight polypropylene enclosure

  • 1000W system power paired with custom transducers deliver gig-level volumes with room to spare
    • 12" high-output LF driver / 1.4" titanium dome compression driver
  • High-Definition Audio Processing for professional sound with unmatched clarity
    • Patented acoustic correction developed with touring geniuses at EAW®
    • Precision 2-way crossover
    • Driver time alignment and phase correction
  • Quick one-button Speaker Mode selection for application-specific voicing (PA, DJ, Monitor and Soloist)
  • Effortlessly eliminate nasty feedback with one-button automatic Feedback Destroyer
  • Integrated 2-channel mixer featuring dual Mackie Wide-Z™ inputs
    • Handles anything from mics to guitars to mixers with a single twist of the gain knob
    • Includes stereo RCA inputs for easy connection to music source
    • Perfect for the singer/songwriter, plug in and leave the mixer at home
  • Smart Protect™ DSP kicks in to protect your investment when things get pushed a little too hard
  • Monitor-specific angle and voicing mode perfect for cutting through on stage
  • Flyable for permanent install
  • Proven highly-durable, portable design
    • 37.0 lbs / 16.8 kg

  • Mackie - SRM450 user manual (pdf)
  • Mackie - SRM450 - hook up guide (pdf).
  • Mackie - SRM450 - tech specifications.

Mackie - TH-15A

rear view
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Mackie - TH-15A - Full Range Powered Speaker

  • 400W of ultra-efficient Fast Recovery™ amplification
    • LF 300W peak power (Class-D)
    • HF 100W peak power (Class A/B)
  • High-output transducers
    • 15" high-precision woofer
    • 1" compression driver
  • Mackie Active electronics provide total system optimization
    • Precision 2-way crossover
    • Transducer time-alignment
  • User-adjustable 3-band contour EQ with sweepable mid-frequency
  • Mic/Line input for direct connection of single microphone
  • Tough, impact-resistant polypropylene enclosure
  • Pole-mountable and floor wedge-able
  • Extremely lightweight and portable
    • TH-15A (36 lbs)

  • Mackie - TH-15A user manual (pdf)

Grundorf STP-122M
Grundorf STP-122M 2-Way Monitor

The STP-122M is a very versatile loudspeaker perfect for pole-mounting as a small, full-range portable PA system or it also has a dual-angle for near or far-field floor monitoring.

  • Power Handling :
    • (RMS): 300 Watts
    • (Program): 600 Watts
    • (Peak to Peak): 1200 Watts
  • Frequency Response: 60 Hz - 16 kHz
  • Sensitivity (1W @ 1M): 98 dB SPL
  • Nominal Impedance: 8 ohms
  • Dispersion:
    • Horizontal 70°
    • Vertical 40°
  • Components:
    • Low Frequency Driver
      12" Cone
      Cone Material is Weather-Treated paper
    • High Frequency Driver
      1" Compression Driver
  • Crossover Frequency: 2 kHz
  • Enclosure Type: Multi-angle
  • Grille: Powder-Coated, Perforated Steel
  • Connectors: Two NL4 Speakon®
  • Product Dimensions:
    • (inches) H - 14.25" W - 22.25" D - 13.63"
    • (millimeters) H - 361.95 W - 565.15 D - 346.20
  • Product Weight: 40.0 Lbs / 18.0 Kgs

Peavey - SP4
The Peavey SP4 BX is an incredibly loud and clear three way speaker system. Dual fifteen inch Black Widow Soeakers are used along with Peavey's high end RX22 horn driver. Peavey has teamed up DC Music Store to offer the SP4 at a fantastic price. The system provides fantastic low end response, great clarity in the mid range as well as sizzling highs. The Peavey SP line of speakers has been the main stay that has built their reputation for outstanding quality sound equipment.

The SP4 is a pro caliber quality loudspeaker and with the Black Widow Speakers that can be field replaced with replaceable baskets and the RX22 that can be replaced with a diaphragm replacement kit the SP 4BX is built for pro standards and meant to be used in a high use situations.

You can bi-amp the system if you desire, connect with either speak on style connections or typical quarter inch connections.

Peavey uses a high end crossover designed to give you a smooth response from 52hz to 17k hz. With their unique Sound Guard Protection Circuit will provide high volume, fantastic clarity and the utmost dependability.

Features and Specifications:
  • Quasi-three-way, full-range, bi-ampable sound reinforcement system
  • 2000 watts program, 4000 watts peak
  • Patented Asymmetrical Quadratic Throat Waveguide technology
  • Patented Radialinear Planar Phase Correction System
  • Sound Guard III tweeter protection
  • Two 15-inch BWX Black Widow 4 inch voice coil woofers
  • Asymmetrical horn aims the sound down 10 degrees, at the audience, not over their heads
  • Full-range inputs include a Neutrik Speakon 4 pin jack and two 1/4-inch phone jacks
  • Bi-amp capability via internal wiring jumper
  • Trapezoidal enclosure
  • HammerHead durable covering material
  • RX 22 compression driver with ferrofluid cooling
  • Casters are incorporated for improved portability
Call OSV for rental pricing info - Local: 517.393.7800 - Toll Free: 800.373.5483

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