--- product_id: 49426340 title: "Behringer ADI-21 Acoustic Amp Modeler/ DI" brand: "behringer" price: "€ 84.53" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.be/products/49426340-behringer-adi-21-acoustic-amp-modeler-di store_origin: BE region: Belgium --- # Super-high impedance for pure signal Dual DI mode for versatile recording 3-band EQ with sweepable mids Behringer ADI-21 Acoustic Amp Modeler/ DI **Brand:** behringer **Price:** € 84.53 **Availability:** ✅ In Stock ## Summary > 🎸 Elevate your acoustic tone — be the player everyone envies on stage and in studio! ## Quick Answers - **What is this?** Behringer ADI-21 Acoustic Amp Modeler/ DI by behringer - **How much does it cost?** € 84.53 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/49426340-behringer-adi-21-acoustic-amp-modeler-di) ## Best For - behringer enthusiasts ## Why This Product - Trusted behringer brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Authentic Tube Warmth:** Tube/microphone modeling circuitry delivers rich, natural warmth as if miked through a vintage tube preamp. - • **Compact & Stage-Ready:** Lightweight and pedalboard-friendly design ensures you never compromise tone or portability on the go. - • **Pure Signal Integrity:** Super-high impedance input preserves every nuance and dynamic of your acoustic guitar’s natural voice. - • **Precision Tone Sculpting:** Ultra-musical 3-band EQ with sweepable mids lets you tame feedback and harsh piezo harmonics effortlessly. - • **Versatile Recording Ready:** Dual DI mode offers seamless switching between direct recording with tube emulation or standard active DI bypass. ## Overview The Behringer ADI-21 is a compact analog modeling preamp and DI box designed for acoustic guitarists seeking professional-grade tone shaping and recording flexibility. Featuring a 3-band EQ with sweepable mids, super-high impedance input, and authentic tube/mic emulation circuitry, it preserves your instrument’s natural dynamics while adding warmth and presence. Dual DI modes allow direct recording with tube emulation or standard DI bypass, making it a versatile tool for live and studio use. ## Features - Analog modeling acoustic guitar preamp/stompbox with di recording output - Ultra-musical 3-band eq with sweepable mids for accurate feedback control and to eliminate the harsh harmonics of piezos - Super-high impedance to retain maximum signal integrity and dynamics - Authentic tube/microphone modeling circuitry provides the natural warmth and presence as if your acoustic guitar was miked through a tube pre-amp - Dual di mode for either direct recording output with tube/microphone emulation or standard active direct injection box in bypass mode ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B000KITQK2 | | Batteries | 1 9V batteries required. | | Best Sellers Rank | 7,820 in Musical Instruments & DJ (See Top 100 in Musical Instruments & DJ) 2 in Acoustic Guitar Preamps | | Colour | multi | | Colour Screen | No | | Country Produced In | china | | Customer Reviews | 4.2 4.2 out of 5 stars (974) 4.2 out of 5 stars | | Date First Available | 14 Dec. 2006 | | Guaranteed Software Updates Until | unknown | | Item Model Number | ADI21 | | Item Weight | 458 g | | Product Dimensions | 5 x 10.01 x 12.7 cm; 458.13 g | | Styling | Tube | | Voltage | 9 | ## Images ![Behringer ADI-21 Acoustic Amp Modeler/ DI - Image 1](https://m.media-amazon.com/images/I/81vnI4pxcFL.jpg) ![Behringer ADI-21 Acoustic Amp Modeler/ DI - Image 2](https://m.media-amazon.com/images/I/61jfHX4BdIL.jpg) ![Behringer ADI-21 Acoustic Amp Modeler/ DI - Image 3](https://m.media-amazon.com/images/I/61saMwPJzCL.jpg) ![Behringer ADI-21 Acoustic Amp Modeler/ DI - Image 4](https://m.media-amazon.com/images/I/61SIxAsH21L.jpg) ## Available Options This product comes in different **Pattern Name, Style Name** options. ## Questions & Answers **Q: What is the correct psu values for this? I have a 9V 500ma supply will that work?** A: 9v power supply will do the trick. The unit draws only 25-35 milliamps so your supply will be big enough. I think it needs to be centre positive. If you plug in and it doesn't work you might have to cut the wires on the power supply and rejoin them back to front. A regular 9v battery should last you around 10-12 hours with continuous use. **Q: Does anyone use this with a tube amp?** A: I use mine with a Marshall acoustic amp and it is a good preamp and eq for electro/ acc guitars **Q: I have a Taylor with magnetic pickup going through a Fishman Loudbox Mini. I need more volume without feedback. Will this work?** A: It will provide more volume and can be adjusted for EQ, so you should be able to roll back any frequency that is feeding back. I do find the sound becomes quite middle-y and a little bit muddy (like you get with tube compression), the more you try to raise the volume. There is a blend control to mix the natural sound of the guitar with the "processed" sound of the behringer, but to maximise volume you have to set this to full on to processed sound. The sound is a matter of taste, I only use this device when playing solo's to give me a lift, but do find the guitar ends up sounding more like an electric guitar (humbucker/neck position'ish). Hope this helps. **Q: What voltage and current does the PSU give out for this/ what voltage and current does this unit need?** A: The unit uses a 9v power supply (either battery or adapter)It gives a balanced line output (XLR cable)Works well :-)Robert ## Customer Reviews ### ⭐⭐⭐⭐⭐ Amazingly Good! Amazingly Cheap! Plastic Fantastic! *by on Reviewed in the United Kingdom 10 March 2021* I had initially been looking into purchasing either a dedicated acoustic amp or an amp with an acoustic channel.I then stumbled across the Behringer range of foot pedals, and which included the V-Tone.Because of the ridiculously cheap price combined with a plastic construction, I was somewhat sceptical that it could be a worthwhile purchase.After all, this £20 device (purchase price/date £21.48/02:03:2021) is in direct competition with those costing three figure sums, and made of metal to boot, not withstanding the even more costly, dedicated amps.However, the relatively small financial outlay (and standard "returnability") made its purchase a virtual "no brainer".Experience gained from the very recent purchase of other Behringer pedals meant that I already knew the plastic construction would not be detrimental, as it is of a robust, high density, heavyweight variety.The performance didn't disappoint either.The documentation comes with some helpful settings preferences for a number of user scenarios such as "Folk", "Country" and "Finger Picking", and which can be used as time saving starting points that can then be fine tuned/customised.I found the audio results to be nothing short of stunning, but you will need the right type of amp and a piezo equipped guitar to get the best "acoustic" results.Your amp needs to be either clean or have a clean channel as this (or any other similar) pedal will, in true "silk purse" fashion, struggle, strain and ultimately fail to wrangle an acceptably authentic acoustic sound out of any "unclean" amplification.Nevertheless, there are many impressive non-acoustic sounds that can be produced by enjoyable experimentation, and you can easily get your acoustic guitar to really rock!This pedal is now happily daisychained with three other pedals (all Behringer as it happens), and are all, thankfully, audibly totally unaffected by its inclusion.One word of note. I have not tried any other alternative pedals, but if one produces results any better than the V-Tone, not only would I be truly amazed, but paying two, three, four, five times the price might just be worth its metal!Addendum:Since writing the above review (which was within hours of receiving the V-Tone) I have discovered a couple of noteworthy points, the first of which might already be common knowledge to more experienced users.1. If powering by battery, when not in use, never leave a jack plug in the "In" socket because whether or not the pedal is in the "on" depressed position, your battery will be drained "flat"! There is reference to this in the accompanying documentation, but didn't notice.Consequently, having set up and put aside a new four-pedal chain, replete with fresh batteries, I later discovered, on its next outing, that all but the first pedal was "dead" (first pedal had guitar jack plug removed).2. When removing V-Tone from the velcro covered pedalboard (so as to access the underside battery compartment), the pedal's rubber base started to become detached, and so will have to be reglued.Closer inspection indicated that it had not been particularly well secured, but is a problem that cannot affect my other three pedals as their design doesn't incorporate an additional "base" material!Should really deduct a star, but am so pleased with the sound and general functionality that it seems a bit churlish.Any additional problems, though, and there might be star carnage! ### ⭐⭐⭐⭐ Very useful for DIing acoustic guitar into the mixer desk. *by on Reviewed in the United Kingdom 6 October 2022* I use this for solo acoustic gigs and it allows me to connect the output from my acoustic guitar directly into the mixer desk and still have a natural sound.You can just plug the guitar into the mixer without a DI box, but you usually end up with a rather tinny and unpleasant sound. Fiddling with the EQ on the desk helps, but it assumes the person doing the sound knows what your guitar is supposed to sound like.The other, and overlooked reason for using a DI box is that it allows you to use long cable runs without introducing noise. Use a short, regular guitar lead from the guitar to the DI box, and then you can use a balanced XLR (microphone) cable to the mixer desk. That cable can be as long as you like. If the mixer desk is really far away on the end of a multicore cable, it's pretty much essential to use a balanced connection.There's an un-balanced 1/4" jack output as well as the balanced XLR. You could run that to a small on-stage monitor amp in addition to the balanced output to the desk (or your laptop), although I haven't actually tried that. I'm not sure if both outputs can be used at once.The mixer desk in question can be a live-sound mixer, or an interface into a home-studio. Usually I'd record the raw output from the guitar and use plugins to shape the sound, but sometimes you just want to plug the guitar in and record, without messing around.I've got this on a small pedalboard with a compressor and reverb pedal. I put this last in the chain, and send the balanced XLR straight out to the desk. No effects needed on the desk, set the EQ flat and leave it alone. I can then twiddle the sound at my end to my satisfaction.I have found that you need to be a bit careful with the 'Blend' control. It adds a lot of warmth to the sound, but can also introduce some distortion if you overdo it.The EQ is pretty easy to use. It has the usual Bass, Middle, Treble controls, and also a 'Mid Frequency' control, which allows you to adjust the frequency that the mid control influences. This is handy for controlling boominess and body feedback on acoustic guitars.This device doesn't really 'shape your tone'. Ideally, it wouldn't have a tone at all. It's a DI box for hooking your guitar to a mixer desk. It does have some tone shaping, but it's not intended to radically change the sound of the guitar - indeed, it's intended to keep it as natural as possible, and dial out the zingy piezo sound. It's also intended to do it in the simplest way possible, which is invaluable if you are setting up for a solo acoustic gig in a busy pub full of half-drunk punters.I mention this because seen complaints saying things like it's, "Not that effective with a dedicated acoustic quality amp". Well, no. It won't be, because your dedicated acoustic amp is doing all the work. That's why you buy a dedicated acoustic amp. Plugging your guitar into a dedicated acoustic amp and then DIing into the desk through a £20 plastic box is like buying a 50" 4K widescreen TV and watching it on your phone's camera. Why not use the Line Out that's actually built into the amp?Another odd thing I accidentally discovered is that ES2-equipped Taylor guitars already have a balanced output, but on a 'stereo' 1/4" TRS jack. If you have the right cable, you can plug them straight into the desk without a DI box, which you should always do, because if you plug them into this DI box the signal level is strangely low, it distorts and sounds pants. This is NOT an issue with the Behringer DI box (or the guitar) - everything is working how it should, but the guitar and DI box are not really compatible. It took me AGES to find out why my PRS Tonare sounds great into this box, but my mate's Taylor doesn't.For the price this box costs, anyone using acoustic guitar live should have one of these in their gig bag. Even if you have a dedicated amp, because it might fail mid-gig, and with this you at least have the option of going into the desk. ### ⭐⭐⭐⭐⭐ Excellent value and a great product *by on Reviewed in the United Kingdom 20 November 2013* I play mandolin and banjo in a bluegrass band and I recently bought piezo pickups for both instruments. Plugging them straight into the amp produced a sound akin to a tin can on both instruments, so I asked advise and was told that I really should get a preamp to match the output signal from the piezos and the amp requirements.I didn't want to spend a huge amount so did some investigation and the reviews for this product were pretty good and I decided to give it a go. Ordered it from Amazon. Arrived next day and I plugged it straight into my practice amp to try it out on both instruments.First of all, I was impressed with the build quality. This is a heavy box, well made and won't break easily. The controls are easy to use and give a large spectrum of adjustment, so you can really get whatever tone you want. There is also an on/off stomp button. Useful for tuning, switiching instruments, etc.OK, no banjo is going to sound great on a piezo, but this box doe go some way to giving you a decent tone. On the mandolin, it sounds spot on.The other great feature is that there is a balanced XLR output so you can go into the XLR channel on your amp, which will also help with signal integrity. If you don't have XLR, there is te usual jack output so no worries either way.I used it during our latest gig and it really made a huge difference.There are man other preamp/DI boxes out thee that cost a lot more, but frankly, I don't think they'll do that much of a better job than this one for the extra cash involved.Only time will tell re longevity, but it does look and feel like it'll outlast a lot of more expensive boxes I've used in the past.Highly recommended. ## Frequently Bought Together - Behringer ADI21 V-Tone Acoustic Driver DI Box - D'Addario Accessories Guitar Pedal Power Supply - DC 9V Power Cord - 9V Power Supply for Guitar Pedals - Pedalboard Power Supply - PW-CT-9V - New bee 6ft Instrument Cable Bass AMP Cord for Electric ,Bass Guitar, Electric Mandolin, Pro Audio (Right Angle to Straight, Black) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/49426340-behringer-adi-21-acoustic-amp-modeler-di](https://www.desertcart.be/products/49426340-behringer-adi-21-acoustic-amp-modeler-di) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-08-26*