System integrators looking for a flush-mount subwoofer should check out the black Bose Professional FreeSpace 3 Series II Acoustimass Module, a high-performance, low-frequency loudspeaker that is designed for small- to medium-sized installed applications such as retail stores, restaurants, bars, lobbies, and conference rooms.

The FreeSpace 3 Acoustimass module provides deep, non-localized bass support down to 40 Hz without audible distortion. When paired with the separately sold FreeSpace 3 flush-mount satellite loudspeaker, the Acoustimass bass module forms a full-range system and allows for a modular deployment with 2 or 4 satellites being used per subwoofer. Mix and match with surface-mount speakers to work with your room's decors and layouts.

5.25" Woofer    Powerful Bass Down to 40 Hz    For Small- to Medium-Sized Rooms    Part of FreeSpace 3 System    Works with FreeSpace 3 Satellites    Compatible with Surface-Mount Satellites

• Low-frequency loudspeaker featuring one 5.25" woofer that delivers deep, non-localized bass support down to 40 Hz without audible distortion. For flush, ceiling, pendant, and wall-mount applications
• Acoustimass speaker technology filters out audible distortion to deliver non-localized bass
• Designed to work with the FreeSpace 3 flush and surface satellite speakers, or existing systems where additional bass reinforcement is desired
• Module design allows parallel connection of multiple bass modules and can accommodate two or four FreeSpace 3 satellites per bass module
• Plenum rated for use in air handling spaces (with optional plenum cover)
• Selectable 70/100V or low impedance with transformer tap adjustment under speaker grille

Related Questions and Answers

Q: 1. Are these only wired or Bluetooth as well?

A: The Freespace 360P Series II Environmental Loudspeaker is a wired speaker for use in outdoor systems. It can be used in-ground or above ground and is designed to blend in with landscaping.

Q: 2. Could this work to power 4 Freespace DS 16F speakers? Thx

A: The Bose Professional FreeSpace DS 16F 2.25" 16W Passive Loudspeaker has transformer taps for 70V and 100V connections, as well as an 8-ohm bypass setting that specifies 16W RMS and 64W peak for each speaker. The Bose Professional FreeSpace IZA 250-LZ Integrated Zone Amplifier specifies 2 channels of speaker output offering 25W at 8 ohms, or 50W at 4 ohms. You could potentially squeeze in two DS 16F speakers on each channel if you wired them in parallel, which would create a 32W RMS load at 4 ohms. Ideally you would want to use an amplifier offering more adequate output power for this model and quantity of speakers.

Q: 3. Will the ear tips (not worried about the bands) fit the QC Ultra earbuds?

A: According to the manufacturer, the Bose Alternate Sizing Kit for QuietComfort Earbuds II (Black), B&H # BOQCEB2ASK, will not fit the Bose QuietComfort Ultra Earbuds Noise-Canceling True Wireless In-Ear Headphones (Black), B&H # BOQCUEBB.

Q: 4. Are These compatible with Bose Invisible 300 Speakers ?

A: Yes

Q: 5. I bought two of these speakers to be used with a Sonos Amp (125W channels). Can/should I bypass the internal transformer?

A: For connection to a Sonos amp, the Bose Freespace 360P Series II Environmental Loudspeaker (Green) should be in a 4-ohm setting. The transformer wattage tap is for the purpose of connecting to a 70V/100V amplifier so that you can keep the speaker limited to a certain wattage, reserving the leftover wattage for connecting other speakers to that same 70V/100V amplifier, which is typically used in commercial retail, grocery stores, and warehouses.

Q: 6. the two small Klipsch speakers i have only one small key hole on back. will these mount to these stands? Or how would they mount to?

A: These stands are designed to be used with certain Bose speakers only. They are not compatible with other brands.

Q: 7. Are these Bose speakers compatible with an Iphone

A: The Bose UFS-20 Series II is a set of Universal Floorstands, not speakers. It is not compatible with the iPhone.

Q: 8. Why micro usb ( should have usb C)?

A: This product uses a USB Micro-B for charging. As to why? You would need to speak to the engineers at Bose Corp.

Q: 9. I am just using a bookshelf Samsung Stereo that came with 4 ohm speakers/ 80W per channel. Is there a way to wire these that bypasses the internal transformer, basically making them work the Freespace 51's (which I can't find)?

A: Yes, The Bose Freespace 360P Series II Environmental Loudspeaker can operate at 4 ohms and can handle 80W of power. If you use the black common wire as negative and the orange 80W wire as positive, you will be using the speaker at full power and bypassing its internal transformer. The Freespace 360Ps and Freespace 51s cannot be daisy chained together but they can be wired directly to your stereo receiver or power amplifier.

Q: 10. Does it work for Bose 700 surround speakers ?

A: Hey there! No, they will not work, you will need the OmniJewel Floor Stands.