Boston Acoustics 20 Manual De Usuario

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thank you for choosing Boston acoustics. the Boston Bravo® 20 is a multi-purpose, high performance compact loudspeaker. 
the Bravo 20, which uses Boston’s patented one-inch aluminum dome Vr® tweeter with amD and a 41⁄2-inch woofer, can be 
combined with its supplied mounting bracket or rear stand to be mounted or placed virtually anywhere in any room.

correctly wiring your speakers is important for achieving the best sound quality. Wiring should take just a few minutes, but it’s 
important to do it carefully, since incorrect wiring (such as reversed connections) can result in a poor soundstage and poor bass. 

We recommend 18-gauge wire or thicker for runs up to 15 feet (4.5m), and 16-gauge wire or thicker for longer runs. separate 
the first few inches of the wire conductors. strip off 1⁄2-inch (12mm) of insulation from the ends of each speaker wire to expose 
the two conductors and tightly twist the wire strands.  

 
WARNING:

  

to prevent electrical shock hazard, always switch off the amplifier or receiver when making connections to the speaker.

IMPORTANT:  typically, one side of the wire is smooth. 
connect this side to the – (black) connection. the other side 
has a rib or stripe. connect this to the + (red) connection.

Using the spring terminal posts:  the spring terminal 
posts permit easy connection to banana plugs, spade lugs, 
and bare wire. push the the top of the terminal down by  
approximately 1⁄4-inch, exposing the hole. insert the wire in 
the hole and release the terminal.

 

1. connect the speaker terminals to the amplifier speaker outputs.
2. make sure the speaker cable is correctly routed through the mounting bracket. 
    (see mounting options)
3. When making all connections, be sure to connect + to + (red) and – to – (black).
4. if using the Bravo 20 with a subwoofer, set the receiver’s bass management to small in the speaker setup menu. this will  
    divert very low frequencies away from the center channel to the main speakers and/or subwoofer.

Frequency Range (±3dB):  

80Hz to 20kHz

Recommended Amplifier Power: 

15–125 watts

Nominal Impedance:  

8 ohms

Sensitivity 85dB [SPL/2.8v at 1m]:  89dB

Woofer: 

41⁄2” (115mm) copolymer  

1” (25mm) Vr® aluminum dome with amD

2500Hz

Dimensions:  (H x W x D)  

  

with corner fillers 

141⁄4 x 61⁄2 x 51⁄4” (362 x 166 x 134mm) 

without corner fillers 

141⁄4 x 61⁄2 x 41⁄4” (362 x 166 x 108mm)

Weight: 

5 lbs (2.25kg) 

Finish: 

White or black, textured aBs 

 

with matching metal grille

the Bravo 20 can be used on a flat surface, such as a table, shelf or the floor. for horizontal placement that angles up at 45º, 
both corner fillers must be used and the bracket must be removed. for untilted horizontal placement, the rear stand must be 
used with the mounting bracket attached (see “mount the speaker to the Bracket” and the “rear stand installation instructions” 
found on page 6. for vertical applications mount the four supplied rubber feet to the bottom of the speaker. attach two of 
the supplied self-adhesive rubber feet so that its edge contacts the back edge of the cabinet. apply two more self-adhesive 
rubber feet to the recesses at the front of the cabinet.