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Niles OS6.3 White Home Theater Speaker 6" and BTA-250 In-Wall Amplifier

Sorry, this product has been discontinued.

Niles OS6.3 White Home Theater Speaker 6" and BTA-250 In-Wall Amplifier

OS6.3 White Home Theater Speaker 6"

These are superbly built outdoor speakers manufactured by Niles. OS 6.3 outdoor speakers are fully weatherproof and marine-rated. These speakers are completely weather resistant and are manufactured from high quality marine grade material. They will remain 100% functional in the biggest of storms. 

BTA-250 In-Wall Amplifier

For audio installers and the do-it-yourselfer who need to add a two-channel stereo amplifier in homes or commercial spaces, Earthquake Sound gives to you the new BTA-250. Adding an audio zone with Bluetooth¬ģ capability has never been easier. This is a wireless in-wall amplifier kit that packs flexibility, power, and control into one very small and discrete package that can be used for both indoor and outdoor settings. The BTA-250 kit comes with the in-wall amplifier, B120R retrofit electrical box, 12‚Äď24 VDC power supply, and cable adapter.

This three input in-wall amplifier can accept signal through the front panel 3.5mm stereo mini jack, Ethernet port, or Bluetooth¬ģ connection. With the provided 12‚Äď24 VDC power supply and cable adapter, the BTA-250 can produce 50 WRMS per channel and can easily power a pair of ceiling, outdoor, or in-wall speakers. It is compatible with 4-Ohm and 8-Ohm systems and also features a front mounted volume control knob for added convenience.

OS6.3 White Home Theater Speaker 6"


  • Integrated woofer/baffle assembly increases cone area to provide powerful bass output 5" interlaced carbon fibre cone is extremely rigid to reduce breakup and lower distortion
  • Butyl rubber cone surround damps resonance and provides exceptional durability
  • 1" UltraSilk dome with fluid-cooling and ultra-wide dispersion for clear, detailed and extended high frequencies
  • Impedance: 8 Ohms
  • Recommended amplifier power: 5W - 100W
  • Frequency response: 100Hz - 21kHz +/-3dB
  • Sensitivity: 90dB for 2.83V pink noise
  • Dimensions (includes bracket): H 9⅞" x W 6¼" x D 6¾"
  • Exceeds US military anti-corrosion specifications
  • Available in black or white


Woofer Driver Complement: 6" mica-filled polypropylene woofer
Tweeter Driver Complement: 1" Ultrasilk dome tweeter with fluid cooling
Recommended Amplifier Power:  5 to 125 watts per channel
Nominal Impedance: 8 ohms
Frequency Response: 75Hz to 21kHz, +/-3dB
Sensitivity: 90dB with 2.83V pink noise input, measured at 1 meter on axis
Wiring Requirements: 16 to 18 gauge speakers wire for runs up to 80 feet and 14 gauge speaker wire for runs up to 200 feet. The connectors will accomodate 12 to 22 gauge wire.
Dimensions (Loudspeaker with U-Bracket): 7-7/16" W x 12" H x 7-3/4" D
Weight (Loudspeaker and Bracket): 15lbs per pair

BTA-250 In-Wall Amplifier


  • Flex Power 12–24VDC
  • Bluetooth® Compatible
  • 3.5mm Line Input
  • PoE (Power over Ethernet)
  • Balanced Audio In
  • Supports Cat 5/6
  • 20Hz–20kHz Frequency Response
  • Output Power:
  • 2 x 50 WRMS @ 4-Ohm
  • 2 x 25 WRMS @ 8-Ohm
  • THD: < 0.1% @ 1kHz
  • S/N: 95 dB @ 4-Ohm 1kHz
  • Input Impedance: 20 kOhm
  • Wireless Range: Up to 32.8 ft (10m)
  • Fits most standard single-gang junction boxes


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Where can you get more information about Proposition 65?

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