About the Boston Acoustics SA1
The SA1 amplifier provides high-quality power for up to two compatible Boston Acoustics subwoofers. Selectable crossover and equalizer settings let you achieve an optimal blend of sound with your other speakers. The auto on/off feature allows for more streamlined operation you won't have to take any extra steps to power on this amp before listening to music or watching a movie. Plus, the SA1 can be stacked with the rest of your audio components or rack-mounted in a closet or cabinet for out-of-sight installation.
Product highlights:
- 140 watts (mono) RMS into 8 ohms, or 210 watts RMS into 4 ohms
- gold-plated stereo line-level input
- unfiltered LFE (Low Frequency Effects) input for connection to a home theater receiver's subwoofer output
- two sets of binding posts for speaker-level output
- continuously variable 40-160 Hz, 24 dB/octave low-pass crossover
- selectable auto-sensing power on/off
- selectable equalizer settings
- phase control
- selectable 12-volt trigger for use with 3rd-party control systems
- rack-mountable design
- detachable AC power cord
- 3-1/2"H x 19"W x 12-1/2"D
- warranty: 1 year
- MFR # SA1
What's in the box:
Boston Acoustics SA1 owner's manual
- SA1 Subwoofer amplifier
- 5.75' AC power cord
- Product manual
- Warranty sheet
Customer reviews for Boston Acoustics SA1
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More details on the Boston Acoustics SA1
Features & specs
General | ||
---|---|---|
Number of Channels | 1 | |
Power Output per Channel (8 ohms) | 140 | |
Power Output per Channel (6 ohms) | --- | |
Power Output per Channel (4 ohms) | 210 | |
Frequency Bandwidth | N/A | |
THD | 1% | |
Minimum Impedance | 4 | |
Bridged Power per Channel | N/A | |
Speaker Outputs | 2 | |
THX Certification | No | |
Width (inches) | 19 | |
Height (inches) | 3-3/4 | |
Depth (inches) | 13-1/4 | |
Weight | 18 pounds | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year | |
Inputs & Outputs | ||
Number of Inputs | 1 | |
Input Type | RCA | |
Removable Power Cord | IEC 2-prong | |
Level Controls | No | |
Speaker Connectors | Binding posts |
Product Research
Features
Overview: The SA1 amplifier is designed to be used with the Boston Acoustics line of installed subwoofers. One SA1 amplifier can power up to two of the same model subwoofer.
Variable Crossover: The amplifier has a built-in variable crossover that makes it easy to achieve a seamless blend with the main speakers, while the 24dB/octave low-pass filter prevents the subwoofer from being easily localized by the ear, increasing placement flexibility. The crossover point may be adjusted from 40-160 Hz.
Controls
Front Panel Controls:
- Phase Switch: switches the polarity of the two speaker outputs; the correct setting is that which yields the fullest bass
- Low-pass Knob: allows you to adjust the low-pass crossover point from 40-160 Hz
- Volume Knob: allows you to adjust the volume level up or down until the bass level of your subwoofer matches the bass level of your speakers
Rear Panel Controls:
- EQ Mode Switch: allows you to select one of the following EQ modes, depending where your subwoofer is located: Wall or Floor
- 12-volt Trigger Switch:
allows you to choose one of the following settings:
- On: amp is on whenever the front panel switch is in the On position
- 12V:
amp is in standby mode whenever the
front panel switch is in the On position. The SA1 turns on when a
12-volt power supply triggers it.
- Note: Be sure to use a power supply that is rated as, "9 to 14 volts DC @ 1.5mA max. 1/8" diameter female plug with tip positive."
- Music: amp is in standby mode whenever the front panel switch is in the On position. The SA1 turns on when an audio input signal triggers it.
Connections
Rear Panel Connections:
- Line In: left and right RCA audio jacks; use this configuration if you wish to set the subwoofer crossover point using the SA1's low-pass control knob on the front panel or are using separate components, such as stereo preamplifier.
- LFE/Xover Bypass: single RCA audio jack; in this configuration, the SA1's internal low-pass filter and front panel low-pass control knob will be bypassed
- Speaker A/Speaker B: gold-plated binding posts; the binding posts are not 5-way because a plastic collar prevents their use with spade lugs
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Customer Q&A
3 questions already asked
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Although any older design, the SA1 was extremely easy to hook-up and had all the features I was looking for. I am driving two 15 inch sub woofers and the 2 speaker outputs work very well.
Bob from Minnesota