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Determine the location for the mounting platform.  

Ensure there is adequate room for the BPS8 Subwoofer 

at the location of the platform. 

The speaker opening 

must be located 12” (305mm) from the BPS8 

Subwoofer to allow the port tube to reach through 

the platform.

Place the mounting template on the side of 

the joist and drill six 1/2” (12.7mm) holes 

through the joist at the locations shown on the 

mounting template.

1

3

Hold the side of the BPS8 Subwoofer with the 

rubber damping pad up against the side of the 

joist and install the six lag screws and washers 

to secure the BPS8 Subwoofer in place.

4

12” (305mm)

BPS8

Port Tube

Architectural Series 

mounting platform

On the end of the BPS8 port tube there is a tether. 

The tether will be used later to guide the BPS8 port 

tube through the mounting platform opening. 

6

Tether

Foam

Position end of port tube as close as possible 

to back of mounting platform. Loop tether into 

the anchored zip tie and secure. This process 

ensures that bandpass connector is easily 

attached later and other tradespersons won’t 

infringe on port tube assembly area.   

7

8

Tether into 
zip tie

(1) Quickstart guide
(1) Bandpass Subwoofer w/ port tube
(1) Cardboard mounting template

Mounting screws & washers:
(6) 5/16” x 2” lag screws (for thinner beams)
(6) 5/16” x 3” lag screws (for thicker beams) 
(6) 5/16” washers

Box Contents

Bandpass Subwoofer can be installed in 

joists spaced 16” on center or greater.

BANDPASS STEREO SUBWOOFER QUICKSTART GUIDE 

BPS8 FOR USE WITH ARCHITECTURAL SERIES

®

 BANDPASS CONNECTORS

Secure the wire to the zip tie to prevent accidental 

removal. Attach the four conductor wires to the 

input terminals. Positive wires to red terminals and 

negative wires to black terminals.  Run a signal 

test using a 9V battery. 

NOTE: Port tube contains 

foam plug with tether, make sure pressure 

levels don’t expel the foam and tether. 

For wiring diagrams and detailed eManuals visit 
http://www.sonance.com/in-wall-in-ceiling/
architectural-series/medium-speaker-subwoofer

If it is not possible to locate the BPS8 Subwoofer 12” 

away from the bandpass connector, the extra hose 

material (up to 8”) must be removed. While it is ok to 

shorten the hose, never extend the hose length.

2

BPS8

BPS8

GOOD

BAD

Included 
zip tie for 
wire

Attach the mounting platform to the joists.  
For mounting platform installation details visit  

http://www.sonance.com/in-wall-in-ceiling/
architectural-series/medium-speaker-
subwoofer

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