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Boston Acoustics SL60 6-1/2" component speaker system
For 6-1/2" and 6-3/4" openings

Item # 065SL60

Boston's SL60 component speaker systems deliver the quality sound you expect from Boston Acoustics speakers.

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Boston's SL60 component speaker systems deliver the quality sound you expect from Boston Acoustics speakers.

Item # 065SL60

About the Boston Acoustics SL60

Ken Nail
Boston's SL60 component speaker systems deliver the quality sound you expect from Boston Acoustics speakers. How? It's all a matter of putting the right pieces together.

Boston's SL60 component speaker systems deliver the quality sound you expect from Boston Acoustics speakers. How? It's all a matter of putting the right pieces together.

Starting at the top, the SL60 features a Type-S1 dome tweeter, constructed from a soft material that keeps the highs clean and smooth. The included hardware allows you to install the tweeters flush with the mounting surface or at an angle.

For resolute reproduction of the lows, the 6-1/2" woofer cone incorporates a special design that keeps the speaker running cool, minimizing distortion. A powerful but light neodymium magnet keeps the woofer's weight down — important if you're trying to shave ounces in a performance car.

A high-quality crossover makes the woofer and tweeter work together in perfect harmony. The crossover offers several options for connecting the woofers and tweeter to work best in your system. Tweeter attenuation settings on the crossover ensure just the right level of highs.

Priced per system

Product highlights:

  • component speaker system includes woofers, tweeters, and crossovers
  • 6-1/2" copolymer woofer with rubber surround
  • 1" Kortec® dome tweeter with flush- and angle-mount options
  • external detachable crossover with bi-wire and bi-amp options
  • tweeter attenuation circuits (0, -2, -4 dB)
  • grilles included
  • power range: 2-80 watts RMS (220 watts peak power)
  • frequency response 45-22,000 Hz
  • sensitivity: 90 dB
  • mounting rings included for 6-3/4" applications
  • top-mount depth: 2-7/16"
  • warranty: 2 years
  • MFR # SL60

What's in the box:

  • 2 Woofers
  • 2 Tweeters
  • 2 Woofer crossovers
  • 2 Tweeter crossovers
  • 2 Woofer grilles
  • 2 Woofer grille frames
  • 2 Tweeter grilles
  • 4 Woofer gaskets
  • Two 5' lengths of tweeter speaker wire (each with gold-plated 0.11" male quick slides on one end and female quick slides on the other end)
  • 2 Tweeter flush mounts
  • Two 2-piece tweeter angle mounts
  • 8 Self-tapping screws for mounting woofers (length=1")
  • 8 Metal speed clips
  • 8 Self-tapping screws for mounting crossovers (length=1")
  • Two 6" three-hole metal adapter rings
  • Two 6-1/2" multi-hole metal adapter rings
  • Two 6-1/2" diameter 1/2" spacer rings
  • 8 Pan-head screws (#8 x 3/4" length)
  • 4 Self-tapping screws for mounting tweeters (length=1")
  • Two 2-piece metal tweeter spring mounting clips
  • 6 Self-tapping screws for securing tweeter mounts (length=1/2")
  • 6 Pan-head screws for securing adapter rings (length=1/4")
  • 6 Nylon washers
  • 2.5mm Hex key
  • Installation Instructions
  • Warranty sheet
  • Product Registration card

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More details on the Boston Acoustics SL60

Pat M.

Features & specs

Speaker Size
Design 2-way
Tweeter Design 1" Dome
Impedance (Ohms) 4
Tweeter Composition Kortec
Woofer Composition Copolymer
Woofer Surround Rubber
Parts Warranty 2 Years
Labor Warranty 2 Years
Sensitivity (1W at 1 meter) 90
Sensitivity at 2.83 volts N/A
Frequency Response 45 - 22k Hz
Minimum RMS Wattage 2
Maximum RMS Wattage 80
Peak Power Handling (Watts) 220
Top-mount Depth (Inches) 2 3/8
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 5 3/16
Mounting Height (Inches) 0.676
Frame Width 6.571
Frame Length 6.571

Product Research

Fit Notes


Woofer: The SL60 component system is equipped with copolymer woofers with butyl rubber surrounds. Each woofer is equipped with a neodymium magnet, which has a high power-to-weight ratio and a compact size about one-tenth the size of traditional iron-ferrite magnets. The dual-stage aluminum heat sink is integrated into the motor structure to draw heat away from the voice coil increasing the power handling capability.

Tweeter: The SL60 component system features 1" Type S-1 Kortec soft-dome tweeters for a smooth high frequency response and linearity. Kortec is a specially engineered material with the rigidity of a composite dome and the smoothness and detailed response of cloth. The supplied Quick-fit mounting cup simplifies tweeter installation. The tweeters come with flush and angled surface mount brackets.

Tweeter Dimensions:

  Frame Diameter Cutout Diameter Mounting Height Mounting Depth
Flush Mount 2.042" 1.709" 0.367" 0.82"
Angled Surface Mount 1.847" Screw holes only 1.575" Screw depth only

Crossover: The SL60 system comes with two-way adjustable crossovers. Additionally, each crossover comes in two pieces (a woofer crossover and a tweeter crossover), and can be mounted separately or docked together and mounted as one piece. The following adjustments can be made on each crossover:

  • Tweeter Attenuation: On the tweeter crossover, you can adjust the tweeter output by placing the supplied jumper on the appropriate terminals. You can select an unattenuated tweeter output (0dB attenuation), or an attenuated output of -2dB or -4dB. The factory default position is -2dB attenuation.
  • On Axis/Off Axis Configuration: On the woofer crossover you can configure the output of the woofer for on-axis (listener is directly between the left and right woofers) or off-axis (listener is behind or in front of the area between the woofers) performance. For on-axis configuration, the supplied jumper should be placed on the SQ1 terminals. For off-axis listening, the jumper goes on the SQ2 terminals.
  • Input Configurations:
    • Separate Inputs: If you are bi-amping the component system (separately powering the woofer and tweeter with different amplifier channels), no additional wiring needs to be done. The woofer crossover and the tweeter crossover each have their own separate inputs and outputs.
    • Single Input: If you are powering the component system with a single full-range input, you will need to wire the woofer crossover and the tweeter crossover together using the supplied jumper wires (there are two). The speaker wire from the amplifier connects to the input on the tweeter crossover. The woofer and tweeters are then connected to their respective outputs.

      Note: No crossover frequency or slope information was provided by the manufacturer.

Crossover Dimensions: Length=6.663", Height=1.473", Width=1.715" (individually), Width=3.331" (docked together)

Fit Notes

6-1/2" Applications: For 6-1/2" speaker applications, redrilling of some screw holes may be required.

6-3/4" Applications: The speaker will fit in 6-3/4" applications when the supplied bracket is used.

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