“The guitar was well packed and is set up to my liking! I would definitely do business with this company again!”
Boss Acoustic Singer Pro 120-watt Bi-amp Acoustic Combo Amplifier with FX
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$899.99
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Changed your mind? Return it undamaged within 14 days.
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Ships from Rapid City, SD. Free on orders over $100.
11,000+ five-star reviews on Reverb
Trusted by players nationwide since 1963.
Ships same or next day
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Buy risk free with our 14 day - full refund, less shipping, return policy. Check out our shop policies for more details.
THE ACOUSTIC STAGE AMP REDEFINED
The Acoustic Singer Pro takes the acoustic stage amp to new levels of sound quality and creative versatility. Incorporating BOSS’s latest advancements in amplifier research, this compact powerhouse produces rich, vibrant sound with unmatched punch and clarity. Independent channels are provided for acoustic guitar and vocal, and each is equipped with discrete analog input circuits and three-band EQ for studio-quality sound. And with additional features such as Acoustic Resonance, looping, automatic vocal harmonies, effects, and much more, the Acoustic Singer Pro gives acoustic musicians everything they need to deliver inspiring and impactful live performances.
- Professional acoustic amplifier with premium sound and features
- 120–watt bi-amp design with custom-designed 8-inch woofer and dome tweeter
- Dual channels with discrete analog input electronics and three-band EQ
- Dedicated guitar channel with Acoustic Resonance to restore natural tone to stage guitars with piezo pickups
- Mic channel with phantom power and ¼-inch/XLR combo input for connecting a vocal/guitar microphone or second instrument source
- Chorus effect on guitar channel, delay/echo effect on mic channel, and independent reverb on both channels
- Harmony function automatically creates smooth and accurate vocal harmonies via real-time key/chord analysis of the guitar input
- Built-in looper for practicing, developing ideas, and enhancing live performances
- Independent anti-feedback controls on each channel
- Dual XLR DI jacks assignable to outputting individual channels (direct or post-effects) or both channels mixed together
- USB output for direct recording to a computer
- Remote control of looper, harmony, and effects supported with various BOSS footswitch models
- One dual footswitch included for looper and harmony control
SPECIFICATIONS
Rated Power Output
120 W (Woofer: 100 W, Tweeter: 20 W)
Nominal Input Level
MIC INPUT: -33 dBu (2.5 k ohms)
GUITAR INPUT: -10 dBu (5 M ohms)
AUX INPUT: -8 dBu (10 k ohms)
Speaker
20 cm (8 inches) Woofer x 1, 2.5 cm (1 inch) Dome Tweeter x 1
Controls
POWER switch, MASTER knob, TWEETER ATT button, MUTE button
[MIC]
PAD button, PHANTOM switch, VOLUME knob, BASS knob, MIDDLE knob, TREBLE knob, ANTI-FEEDBACK knob, PHASE button, DELAY/ECHO knob, REVERB knob
[GUITAR]
PAD button, ACOUSTIC RESONANCE button, VOLUME knob, BASS knob, MIDDLE knob, TREBLE knob, ANTI-FEEDBACK knob, PHASE button, CHORUS knob, REVERB knob
[HARMONY]
ON button, TYPE button, LEVEL knob
[LOOPER]
LOOPER button, STOP/CLEAR button
[AUX]
LEVEL knob
[DI/LINE OUT]
MIC/MIX: OUT SELECT switch, GUITAR/MIX: OUT SELECT switch
Indicators
TWEETER ATT/MUTE
[MIC]
PAD/PHASE
[GUITAR]
PAD/ACOUSTIC RESONANCE/PHASE
[HARMONY]
ON/HIGH/UNISON/LOW
[LOOPER]
REC/PLAY/OVERDUB
Connectors
MIC jack: Combo type (XLR, 1/4-inch TRS phone type)
GUITAR jack: 1/4-inch phone type
AUX IN jack: Stereo miniature phone type
PHONES/REC OUT jack: Stereo 1/4-inch phone type
DI/LINE OUT MIC/MIX jack: XLR type
DI/LINE OUT GUITAR/MIX jack: XLR type
FOOT CONTROL LOOPER/CHORUS jack: 1/4-inch TRS phone type
FOOT CONTROL HARMONY/MUTE jack: 1/4-inch TRS phone type
GA-FC jack: 1/4-inch TRS phone type
USB port: USB B type
AC IN jack
Power Consumption
50 W
Accessories
Owner's manual
Power cord
GA-FC sticker
Footswitch
Options (sold separately)
Footswitch: FS-5U, FS-6, FS-7
Expression pedal: FV-500L?FV-500H?Roland EV-5
GA FOOT CONTROLLER: Roland GA-FC
SIZE AND WEIGHT
Width: 417 mm(16-7/16 inches)
Depth: 330 mm(13 inches)
Height: 358 mm(14-1/8 inches)
Weight: 14.5 kg(32 lbs oz)
ACS-PRO
Boss Acoustic Singer Pro 120-watt Bi-amp Acoustic Combo Amplifier with FX
$899.99
Customer reviews
11,000+ Five-Star Reviews On Reverb
What players say after the guitar arrives
“This is a beautiful guitar…appreciate the free setup and quick ship! Would purchase from this seller again…THANKS!”
“Thank you too for a wonderful experience and an amazing guitar. I appreciate the quick shipment and great customer service.”
“Very fast shipping, arrived in perfect condition, extremely well set up, no adjustments needed at all! Plays and looks great, exactly as advertised.”
“Fast shipping, and great communication from the seller. Pedal arrived quickly and was packaged really well. Would not hesitate to buy again.”
Very well packed! Would be happy to do business again! Thanks!
“Another masterpiece from Taylor. Great service and communication from Haggerty’s crew. Thanks!!!”
“Beautiful guitar, easy txn! Thank you so much! Looking forward to playing this guitar far into the future.”
“Fast shipping, great pedal. Buy with confidence these guys are great to work with!”
“Great shop! Awesome price, super fast shipping, and great packaging of an awesome new pedal! Thanks!”
Frequently Asked Questions
Do you set up every guitar before it ships?
Yes. Every guitar that leaves our store has been professionally inspected, set up, and signed off by the technician who worked on it. You will find a signed checklist inside the box when your order arrives.
How accurate are your condition descriptions?
We treat condition grading as a contractual promise, not an approximation. When we list something as excellent, that reflects a specific, consistent standard we apply across every instrument. We encourage you to call us before purchasing if you want a detailed in-hand description of any specific guitar.
Can I call and speak to someone about a guitar before I buy?
Yes, and we encourage it. Our team are working musicians, not order-takers. Call us at 605-348-6737 and ask about any instrument in our inventory. We will physically pull it off the wall and describe it to you in detail.
What is your return policy?
We offer a 14-day return policy if you change your mind and the item is returned undamaged. You are responsible for return shipping costs.
Do you offer financing?
Yes. Financing options are available at checkout. Monthly payment options are designed to make high-ticket purchases more accessible without requiring full payment upfront.
How do you ship instruments?
Every instrument ships fully insured from our store in Rapid City, South Dakota. We offer free shipping on all website orders over $100. Guitars are packaged to survive transit, properly cased, braced, and protected.
Are you an authorized dealer?
Yes. We are an authorized dealer for Taylor, Martin, Gibson, Fender, and many other brands. We are currently the number one independent Taylor Guitars dealer in the world, an award we have received two years running for 2024 and 2025. We are also a Top 10 premium dealer for Martin, Gibson, and Fender.
Do you sell on Reverb and Amazon as well as your own site?
Yes. We are one of the top 15 resellers globally on Reverb, where we have accumulated over 11,000 five-star reviews. We are also one of the only independent premium dealers in the world authorized to sell Taylor and Martin on Amazon.
How long have you been in business?
Haggerty's Music has been open since 1963. Our store is located at 515 Mount Rushmore Road, Rapid City, South Dakota.
Do you offer instrument repair?
Yes. Our certified technicians handle everything from routine setups to full restorations across fretted, orchestral, and band instruments. Our team holds certifications from Taylor Guitars, Yamaha, and other leading brands. Learn more HERE.
What brands do you carry?
Our core guitar brands include Taylor, Martin, Gibson, Fender, PRS, Epiphone, Suhr, Eastman, Gretsch, Luxxtone, Novo, Jackson, Charvel, Legator, and Yamaha among others. These are also the most searched brands on our site, so each has a dedicated collection page.
Do you offer music lessons?
Yes. We offer music lessons. You can find out more HERE.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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