Classroom Sound System with Drop-In Ceiling Speaker and TeachLogic Forum System (Discontinued)

This Classroom System Solution is the answer to the need for a low cost sound-field system for classroom presentation. The two wireless microphone channels provide freedom of movement and permits hands free performance. The two auxiliary inputs provide multimedia integration with even distribution of sound for all audio in the classroom. It has two separate outputs for assistive listening and recording with active boards.

The SD Speaker employs (4 smaller 6.5”) very fast transient response aluminum-woofer drivers that are very powerful and stable. Working in unison these drivers produce clean powerful dynamic sound. When designing the SD the goal was to have the single most import feature at the forefront, good transient response ("dynamic contrast"). A transient is a sound of short duration, and good transient response can only be achieved if the speaker can deliver its output quickly and cleanly without smearing the original sound, and be completely soundless immediately after. Transients contain the essentials of sound reproduction they provide the sharp pop from a snare drum, the cutting edge of digital sound, the dynamics of the human voice. Larger 2-way cabinet loudspeaker systems offer relatively slow transient response, and the small high-frequency horn tends to beam a narrow, blaring sound at the listener—end result, muddy sound. By replacing larger speakers with four 6 or 8" drivers we increased the driver surface area while creating more punch and a tight, more focused low-end.

PRA SD4 Ceiling Speaker Array:

• SuperDispersion® 360 x 180 Omni Directional Coverage
• Engineered for voice, paging and music applications
• Infinite-baffle in-ceiling speaker drops into standard 2x2 ceiling tile openings
• Powerful – 160 Watts at 8 Ohms, 64 Watts at 70 Volts
• 4 - 6.5” High compliance aluminum woofers with ported bass response and high frequency dome tweeters
• Uniquely designed fire retardant ABS housing may be painted to match any décor
• Impedance: 8 ohms nominal with built-in 70 Volts (4, 8, 16, 32, 64 Watt taps), easily adjustable by rotating switch
• Metal Backbox that is acoustically engineered and sealed for maximum sonic performance
• Safety cable kit included
  
  

TeachLogic Forum:

• 50W Digital Hybrid Class D amplifier
• Two Line inputs for DVD & Computer/Aux
• Three band equalizer: ± 12dB
• Powers up to four (4) speakers
• Power sleep mode feature to conserve energy
• Digital Feedback Guard (DFG)

• (1) Pure Resonance SD4 In-Ceiling Speaker
• (1) Forum IMA-320 Reciever
• (1) ICS-55 Infrared Dome Sensor with 50' plenum rated wire
• (1) Sapphire IRT-55 Pendant Microphone
• (1) BRC-15 Microphone Charger
• (1) 50’ of West Penn 225 Speaker Wire