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Acoustic A20 20W Acoustic Guitar Amplifier  Brown/Tan 

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The Acoustic A20 instrument amp is designed to provide authentic, pristine tone for both acoustic instruments and vocal accompaniment. It is the perf...Read More

Available 02-24-2017

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OVERVIEW

A 20W acoustic instrument amplifier with full-feature direct out, effects loop, 3-band EQ, and more.

The Acoustic A20 instrument amp is designed to provide authentic, pristine tone for both acoustic instruments and vocal accompaniment. It is the perfect compact solution for today's acoustic-electric musician. Two combo inputs with independent level controls allow for instrument or microphone connection and 20 watts of power drives the studio-monitor style speaker for amazing sound. The digital reverb and chorus lets you dial-in your personalized sound, while the anti-feedback filter eliminates unwanted feedback with ease. A full-feature direct out provides the perfect interface for any external PA system. The monitor style cabinet provides excellent live sound monitoring. Make your wood sound good with the A20 from Acoustic.

FEATURES
  • Power: 20W
  • 8" full-range co-axial speaker
  • Dual inputs with combo XLR-1/4" jacks
  • Ported cabinet design
  • 3-band EQ
  • Digital chorus with adjustable rate
  • Digital reverb with adjustable level
  • Vari-control feedback elimination
  • Full-feature direct output with ground lift, pre-post EQ and level
  • Effects loop

Boost your acoustic game with a boost from Acoustic. Order today.

Reviews
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Review Snapshot

by PowerReviews
A20 20W Acoustic Guitar Amplifier
 
3.6

(based on 17 reviews)

Ratings Distribution

  • 5 Stars

     

    (8)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (4)

  • 1 Stars

     

    (2)

59%

of respondents would recommend this to a friend.

Pros

  • Easy to use (14)
  • Portable (14)
  • Warm / comfy (10)
  • Excellent sound (8)
  • Good power output (7)

Cons

  • Poor sound quality (4)

Best Uses

  • Performances (11)
  • Home studio (8)
  • Outdoor events / games (7)
  • Amateur recording (6)
    • Reviewer Profile:
    • Experienced (14)

Most Liked Positive Review

 

Good, flexible amp with decent power.

This is a nice, portable acoustic amp that has good sound quality, and a decent amount of power for its size. The two inputs allow someone else to jack in, or you can...Read complete review

This is a nice, portable acoustic amp that has good sound quality, and a decent amount of power for its size. The two inputs allow someone else to jack in, or you can have a mic and an instrument plugged in. Be aware that there is a volume control for each input, but the single set of tone and fx controls affect both inputs

I recently used it in my medium-to-large sized church when the PA system went down, and it had no problem filling the space with undistorted sound with the volume set at a little over 50%.

I can recommend this little amp for small to medium-sized indoor venues, as a practice amp, or as a monitor for live performances.

VS

Most Liked Negative Review

 

Would have been perfect

Below are two reviews out of five that mentioned hiss from the amp. Unfortunately, I ignored the warnings. They are correct. I received the amp today and before plugging in and with all...Read complete review

Below are two reviews out of five that mentioned hiss from the amp. Unfortunately, I ignored the warnings. They are correct. I received the amp today and before plugging in and with all pots cranked left (off) as they are right out of the box, I powered up to hear a very audible hiss. Not good. This is not a 60 cycle hum and has nothing to do with bad power or ground loops. It is amp hiss which cannot be rectified.

I bought the amp to place in front of my couch pointing at me to practice at low volumes with effects. My ears are bothered by the constant unclean sound at these low volumes. If the amp had a mic on it for stage work, the hiss would definitely be heard when not playing and possibly within the music.

I am disappointed at myself for not taking those reports seriously. I did so because I trusted the brand and because the design of the amp seemed perfect for my needs.

The amp otherwise is really sweet. The effects are usable and the EQ is very sensitive with fantastic range. It also delivers brilliant highs and soothing warm low end. It is a powerful 20 watts and my baritone ukulele sounds wonderful through it. But the hiss ... it never stops. It is never clean even with the volume off.

I really wanted to keep this amp, but I will be returning it and looking towards a Roland or Fishman both offering higher wattages which I do not need, not to mention the much higher price points.

The experience is a bummer but I have faith in MF's return policy and honest service.

Reviewed by 17 customers

Displaying reviews 1-10

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5.0

Excellent Acoustic Guitar Amp

By The Lone Guitarist

from Pflugerville, TX

About Me Experienced

Verified Buyer

Pros

  • Easy To Use
  • Excellent Sound
  • Good Warmth
  • Portable
  • Powerful

Cons

    Best Uses

    • Amateur Recording
    • Events
    • Home Studio
    • Performances

    Comments about A20 20W Acoustic Guitar Amplifier:

    This acoustic guitar amp produces crisp and excellent tone sound. The ability to customize how you want your sound to hear is amazing. I was playing around with the controls of the amp and was able to produce the sound that I want on some songs that I play. This was a great buy for me from this site. Pretty much happy with the amp. Not having any issues like some people have posted.

     
    5.0

    Great purchase

    By Tommy

    from Ky

    About Me Experienced

    Verified Buyer

    Pros

    • Easy To Use
    • Excellent Sound
    • Good Warmth
    • Portable
    • Powerful

    Cons

      Best Uses

      • Events
      • Home Studio
      • Performances
      • Professional Recording

      Comments about A20 20W Acoustic Guitar Amplifier:

      Great little amp for the cost

       
      5.0

      Best buy

      By Syd

      from Seattle

      About Me Experienced

      Verified Buyer

      Pros

      • Easy To Use
      • Excellent Sound
      • Good Warmth
      • Portable
      • Powerful

      Cons

        Best Uses

        • Amateur Recording
        • Events
        • Home Studio
        • Performances

        Comments about A20 20W Acoustic Guitar Amplifier:

        This indeed has been the best buy for me and the best addition for my musical gear in over four years. Quality in all areas is just wow!

         
        5.0

        Beautiful Sound

        By Lucas

        from Albany NY

        About Me Novice

        Pros

        • Excellent Sound
        • Good Warmth

        Cons

          Best Uses

          • Amateur Recording
          • Home Studio
          • Performances

          Comments about A20 20W Acoustic Guitar Amplifier:

          I dont actualy own it but they have it in the acoustic section at my guitar store and every time I visit I pick up any old electro-acoustic and play. Beatiful sound quality, as for the hiss I never experience any such thing

          (1 of 2 customers found this review helpful)

           
          5.0

          Excellent for Solo Performer

          By Abraham

          from St. Louis, MO

          About Me Professional Musician

          Verified Buyer

          Pros

          • Easy To Use
          • Excellent Sound
          • Portable
          • Powerful

          Cons

            Best Uses

            • Performances

            Comments about A20 20W Acoustic Guitar Amplifier:

            I read some of the reviews that complained about a hum or a buzz, but went ahead and ordered this anyway. I have not experienced any hum whatsoever. I wanted it primarily for a personal wedge monitor when I am performing. It is great for that application. My mic and guitar can both be plugged in, I can adjust the volume of each, and then I can send a direct signal to the house board. I'm surprised at how loud this amp is. I have the vocal and guitar volumes at about 1/4 and I can really hear myself.

            (2 of 2 customers found this review helpful)

             
            4.0

            Good rehearsal amp

            By Cat

            from Poconos PA

            About Me Experienced

            Verified Buyer

            Pros

            • Easy To Use
            • Excellent Sound
            • Good Warmth
            • Portable
            • Versatile w/ dual inputs

            Cons

            • Weak

            Best Uses

            • Performances
            • Rehearsal
            • Very Small Venues

            Comments about A20 20W Acoustic Guitar Amplifier:

            A decent quality amp for the price. I got mine on sale.
            The device does as advertised, no more no less.
            If I were to use it to perform I'd need to use add-on devices to adjust the outputs to where I like them.
            It has an output jack on the rear to connect it to a larger sound system for bigger venues.

            (4 of 7 customers found this review helpful)

             
            3.0

            Is hiss

            By BayRider

            from Tunestone, USA

            About Me Experienced

            Pros

            • Easy To Use
            • Portable

            Cons

              Best Uses

              • Performances

              Comments about A20 20W Acoustic Guitar Amplifier:

              Bought one, heard this, sent it back for exchange. Second verse same as the first, second exchange. Third time wasn't the chime, but I'm keeping this nifty little device because it does so much for so little.I am satisfied with my product for the price, and especially pleased with MF's customer service.

              (1 of 2 customers found this review helpful)

               
              1.0

              The "hiss" heard 'round the world

              By BayRider

              from Tunestone, USA

              About Me Experienced

              Comments about A20 20W Acoustic Guitar Amplifier:

              Good idea on paper, bad quality control. I, too, read the negative reviews about the "hiss" in the amp from the moment it's plugged in; so, I went into this purchase eyes wide open. Mine came with the dreaded hiss, so I exchanged it for a 2nd amp with the same problem. You'd think by now I'd just request a refund; but, this baby, if it would work right, is the perfect tool and price. So, considering MF's excellent customer service policy and performance, I'm gonna exchange it again (and again and again, if need be) till I get one that works right.

              (2 of 2 customers found this review helpful)

               
              2.0

              Great features but too noisy

              By dlspinkid

              from Albion, PA

              About Me Experienced

              Pros

              • Easy To Use
              • Portable

              Cons

              • Poor Sound Quality

              Best Uses

              • Amateur Recording
              • Events

              Comments about A20 20W Acoustic Guitar Amplifier:

              I was looking for a small amp with some bells & whistles to use for all sorts of applications, but not spend a bundle. This model fit the bill perfectly. Unfortunatley all it's great features can't out-weigh the "hiss" sound all the other reviewers are complaining about. I took a chance and ordered an open box model which was noisy just like all the other reviews mentioned. MF sent me a brand new one and it was just as noisy. I am now awaiting a third amp hoping it's from a different batch. I can't believe that Acoustic would allow an entire crop of amps circulate with such poor sound quality. Usually their products are pretty decent. I'm crossing my fingers for this last attempt at a cool little amp.

              (7 of 14 customers found this review helpful)

               
              5.0

              HISS problem is NOT CAUSED BY THE AMP!

              By wrogers936

              from Annandale, VA

              About Me Experienced

              Pros

              • Easy To Use
              • Excellent Sound
              • Good Warmth
              • Great Balance Of Sound
              • Portable
              • Powerful

              Cons

              • None

              Best Uses

              • Amateur Recording
              • Home Studio
              • Performances
              • Professional Recording

              Comments about A20 20W Acoustic Guitar Amplifier:

              The comments that I see about a hiss troubles me. I use TWO electric/acoustic guitars. Both of the pick-u systems have a screw to adjust the POT hiss. You're blaming this on the AMP and it's just wrong.

              Displaying reviews 1-10

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