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Acoustic

collapse expand iconDescription

Whether you’re looking to plug in your acoustic guitar or amplify your vocal performance, the Acoustic A40 40W acoustic instrument amp is for you. You can connect your instrument or any microphone via the two combo inputs that feature independent level controls. Dial in your personalized sound with built-in digital effects that can be customized and stored, while eliminating unwanted feedback with the DSP-based automatic feedback elimination circuit. This acoustic instrument amp boasts 420 watts of power in a monitor-style cabinet to deliver incredible live sound monitoring. Plus, Bluetooth connectivity creates a super easy playback interface for your mobile device, while the direct out makes it possible to connect the amp to any PA system.

40W of Power for Pristine Acoustic Tone

The Acoustic A40 instrument amp boasts 40 watts of power and a full-range coaxial speaker to deliver an incredibly authentic and pristine tone, perfect for any session. Featuring a monitor-style cabinet design, the A40 instrument amp delivers great live sound monitoring so you can make sure you’re dialing in that perfect tone for your acoustic instrument or your vocal performance.

Dial in Your Personalized Sound

The Acoustic A40 instrument amp features built-in digital effects that can be customized and stored, so you can dial in your own unique sound. The DSP-based automatic feedback elimination circuit constantly scans for and eliminates feedback, so you get more of your sound and less of the noise.

Level Up With Bluetooth and PA Connectivity

The Acoustic A40 instrument amp also features Bluetooth connectivity, providing a super easy playback interface for your mobile device. You can also power up your live performance with the direct out that lets you connect to any PA system. All in all, the Acoustic A40 amp is a great, powerful solution for today’s acoustic-electric musician.

Acoustic A40 40W Acoustic Guitar Combo Amp
Acoustic A40 40W Acoustic Guitar Combo Amp
Acoustic A40 40W Acoustic Guitar Combo Amp

collapse expand iconFeatures

  • 40-watts RMS output
  • 8" full-range co-axial speaker
  • Dual inputs with combo XLR-1/4" jacks
  • Shelf-ported cabinet design
  • 3-band EQ with sweepable mid-range
  • Low: +/-15dB @ 80Hz
  • Mid: +/-15dB, 500Hz to 1.2kHz (sweepable)
  • High: +/-15dB @ 10kHz
  • Digital effects
  • 20 Preset programs
  • 20 User Programs
  • Reverb, Chorus, Delay, Flanger
  • Automatic feedback elimination circuit (12 filter, DSP-based)
  • Auxiliary Bluetooth connectivity
  • XLR direct output with ground lift, pre-post EQ and level
  • Effects loop
  • Dimensions: 18.3"H x 17.3"W x 16.5"D
  • Weight: 28.7 lb.
warning

WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer, and Lead, which is known to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Featured Articles

collapse expand iconReviews

4.19

48 Reviews

78%

of respondents would recommend this to a friend

Great Sounding Little Amp
Love this amp for its flexibility & power

Most Liked Positive Review

4

Great sound and nice features in a good-looking amp!

I lead worship at our church and play several outdoor events every year. For years I have used my Crate CA125 amp and it has served me well, but I could never get a really nice sound out of it and had to play through an old DOD Acoustec pedal to get a sound that was close to what I wanted. Out of curiousity I plugged into the Acoustic A40 at Guitar Center, and wow! The tone was amazing. Wonderful bass response and really nice, clear highs. I like the simple interface, an easy to manipulate 3-band EQ with a sweepable mid. I like the less is more approach that they've taken with this amp - the bottom line is it's very easy to get a nice sound. The preset effects are nice, I really like the reverb effects and the chorus is nice too. The amp also has phaser, delay, and flanger, but I wouldn't have much use for those unless I was recording lead guitar lines for a backing track or something like that. The Bluetooth is great! The 1/8" aux input jack on the front is very useful also. There is no individual volume control for these two, you just control your volume on the device you're using and it sounds very clean with a wide volume range. The amp comes with 20 preset effects patches, most of which are pretty nice (but not #19, oh it's horrible). There are also 20 channels available for user presets. What's less than stellar? Editing effects. Very unintuitive and at times frustrating, and the manual isn't much help. It took me some time and trial & error to get things dialed in how I wanted. I do like that I can take an existing effects setting, add other effects to taste, and then save it as a user preset complete with a programmable name of my choice, pretty cool. When you have an effect turned on you get it on both channels, no choice there but with reverb and a little chorus it works very well for guitar and vocals. If you need more flexibility you could step up and get the A1000, but for a player like me this amp has all I need. 2 thumbs up.

VS

Most Liked Negative Review

2

Product Appears to suffer from poor workmanship

I purchased this amp for playing out. I use it as a guitar & vocals monitor and line out to the main PA system. I bought the pro-coverage which was a good thing. After owning the product for about a year, I was playing an outdoor show and the amp died in the middle of a song. Guitar center did replace it under the pro-coverage plan, however after another year, the replacement is acting up, cutting out when I sing and play at the same time. I recently purchased Marshall AS50D 50W to replace it. Another negative is the fact that any effects you apply to the guitar also will be applied to the vocals and there does not appear to be anyway to separate this. My bandmate bought an Acoustic A20 amp and has issues with the direct out line to the PA. Bottom line this product is not very robust or reliable, definitely not for professional musicians who need their equipment to be dependable. In the future, I will stay away the Acoustic Brand all together.

Filters

Best Uses

  1. Home Studio26
  2. Performances23
  3. Amateur Recording16
  4. Outdoor Events / Games13
  5. Professional Recording3

Cons

  1. I have no Cons2
  2. Limited Functions2
  3. Difficult To Use1
  4. Poor Sound Quality1
  5. Weak1

Describe Yourself

  1. Experienced20
  2. Novice9
  3. Professional Musician7

Pros

  1. Easy To Use30
  2. Excellent Sound25
  3. Portable24
  4. Warm / Comfy20
  5. Good Power Output18

Reviewed by 48 customers

  • Great Sounding Little Amp

    4

    Verified BuyerVerified Buyer

    submitted9 months ago

    byKregg

    fromBeaumont CA

    Submitted as part of a sweepstakes

    Used this at my last full band show. The amp alone is limited, but the volume controlled direct out produces a great warm acoustic tone that blended with the other instruments perfectly.

  • Without question I would recommend this amp!

    5

    Verified BuyerVerified Buyer

    submitted9 months ago

    byStan

    fromHot Springs, AR

    Submitted as part of a sweepstakes

    I was looking for an amp for my Ibanez Aeg 70, and my Guild OM-260CE, and this amp gives me everything I need and then some. I watched several reviews, but one in particular clown ran this amp in the ground, it was because he didn't like the electronics. He liked easy But I love it!

  • Without question I would recommend this amp!

    5

    Verified BuyerVerified Buyer

    submitted9 months ago

    byStan

    fromHot Springs, AR

    Submitted as part of a sweepstakes

    I was looking for an amp for my Ibanez Aeg 70, and my Guild OM-260CE, and this amp gives me everything I need and then some. I watched several reviews, but one in particular clown ran this amp in the ground, it was because he didn't like the electronics. He liked easy But I love it!

  • Good for Small Indoor Gigs, But Only for 2 Years

    3

    submitted10 months ago

    byBrenna

    fromPittsburgh, PA

    I'm a singer-songwriter and had just started playing at local cafes and wineries when I bought this amp for basic sound. It's easy to use and sounds great. (love the short room reverb.) However, while playing a gig after 2 yrs the amp just quit, with no sound coming through at all.

  • Great Sounding, Terrible User Interface

    3

    submitteda year ago

    byRobert

    fromKansas City

    I wanted a good sounding acoustic amp with effects at a reasonable price. This product fits that bill nicely. There are a couple of problems. First, the user interface for setting parameters is terrible. Second, this amp does not remember those parameters unless saved as preset.

  • Fantastic acoustic amp

    5

    Verified BuyerVerified Buyer

    submitteda year ago

    byJeff

    fromRden idaho

    Submitted as part of a sweepstakes

    Use for my acoustic guitars drum kit and stomp box sounds good with all of thwm

collapse expand iconQ&A

Have a question about this product? Our expert Gear Advisers have the answers.

  • submitted7 months ago

    asked byPhilip

    fromBellevue, WA

    The adhesive to connect the guitar to the amp has dried out and no longer sticks to the guitar body. Where can I get more adhesive?

    The adhesive to connect the guitar to the amp has dried out and no longer sticks to the guitar body. Where can I get more adhesive?

    Open Reply - Gear-Support
    I don't understand your question.

  • submitted2 years ago

    asked byMark

    fromEagan, MN

    When attempting to pair with new laptop via Bluetooth, it prompts me for a PIN? It pairs just fine with phone and prompt gives a number to key in for pairing. what do I need to do to pair with new laptop?

    When attempting to pair with new laptop via Bluetooth, it prompts me for a PIN? It pairs just fine with phone and prompt gives a number to key in for pairing. what do I need to do to pair with new laptop?

    Open Reply - Gear-Adviser
    If it pairs with your phone, it sounds like an issue with the laptop.

  • submitted2 years ago

    asked byFast Eddie

    fromLargo Florida

    Can you plug in a guitar and mic and is there a seperate volume control for each one?

    Can you plug in a guitar and mic and is there a seperate volume control for each one?

    Open Reply - Thomas
    Yes and yes

  • submitted2 years ago

    asked byKathyMc

    fromSouthampton, NJ

    Can I use this amp with my baritone ukulele?

    Can I use this amp with my baritone ukulele?

    Open Reply - Thomas
    Yes

  • submitted3 years ago

    asked byAmyT

    fromBerlin, NJ

    Do the EQ knobs only affect the second channel channel?

    Do the EQ knobs only affect the second channel channel?

    Open Reply - Thomas
    No, both

  • submitted3 years ago

    asked byBILL

    fromFT. COLLINS, COLORADO

    THERE IS A HUM-HISSING SOUND IN THE BACKGROUND? MY OTHER BRAND AMPS ARE ALL PERFECTLY QUIET!?

    THERE IS A HUM-HISSING SOUND IN THE BACKGROUND? MY OTHER BRAND AMPS ARE ALL PERFECTLY QUIET!?

    Open Reply - Kenneth
    Please contact a Customer Service Agent for trouble shooting inquiries

  • submitted3 years ago

    asked byRobert

    fromFort Myers, FL

    Can you plug two guitars into this amp at the same time?

    Can you plug two guitars into this amp at the same time?

    Open Reply - Thomas
    Yes

  • submitted3 years ago

    asked byJim

    fromHampton, Virginia

    Could you use this amp as a portable practice bass amp?

    Could you use this amp as a portable practice bass amp?

    Open Reply - Thomas
    It's not recommended. This will not be very loud and will not handle low frequencies well. This amp is meant for guitar. There is a possibility of speaker damage. Please give us a call to help you find something – 877-68-54073
    Open Reply - Kenneth
    No you cannot

  • submitted3 years ago

    asked byGuitar

    fromFarmington Mo.

    Is there a warranty on this amp where do I find it

    Is there a warranty on this amp where do I find it

    Open Reply - Thomas
    THREE (3) YEAR LIMITED WARRANTY Subject to the limitations set forth below, Acoustic® hereby represents and warrants that the components of this product shall be free from defects in workmanship and materials, including implied warranties of merchantability or fitness for a particular purpose, subject to normal use and service, for three (3) years to the original owner from the date of purchase. Acoustic will replace or repair defective products at its discretion within the warranty period. Retailer and manufacturer shall not be liable for damages based upon inconvenience, loss of use of product, loss of time, interrupted operation or commercial loss or any other incidental or consequential damages including but not limited to lost profits, downtime, goodwill, damage to or replacement of equipment and property, and any costs of recovering, reprogramming, or reproducing any program or data stored in equipment that is used with Acoustic® products. This guarantee gives you specific legal rights. You may have other legal rights which vary from state to state. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

  • submitted4 years ago

    asked byTommy

    fromMartindale tx.

    Can u plug a usb to the a 40

    Can u plug a usb to the a 40

    Open Reply - Thomas
    I’m sorry. Your question is not clear. Please call us at 877 687 5403
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