BP40D Powered Acoustic Guitar Amplifier- Portable Bluetooth Speaker 80W W/Battery with Reverb Chorus Delay Effect, 6 Inputs,3 Band EQ, Black

I LOVE this amplifier. The sound that comes out of it is outstanding for its size. I love that I can take it anywhere since it runs on a rechargeable battery. It's small, lightweight, and performs very well. It's also so small that it's easily concealable when I'm doing reenactment performances. I also love that it has four inputs which opens up more performance options. It's a great product for the price. 100% recommend.

I don't know of a single battery-powered unit that can sound this good and loud, with fine rich tones and more than the COOLMUSIC BP40D Battery Powered Amplifier and Portable Bluetooth Speaker. I purchased the BP40D back in April 2024, and after the initial charge, in late April, I only had to attempt a new charge in late July 2024. Despite playing it outdoors with my acoustic-electric Martin guitar and a microphone plugged in, the charge held, from playing at an outdoor Boy Scout Jamboree to practice at home. I was first inspired to purchase it after a fellow musician, who did a lot of small gigs at campgrounds, senior homes, and more, told me he used the BP40D and its many qualities. It is absolutely, the best fit for a single musician or two to use, with both their instruments and microphones plugged in, without sacrificing rich Bose-like quality....yet at the most reasonable price ever. The size and portability are what sold me on it. I even stopped using my Boss Katana 100 W Amp, since this Coolmusic BP40D sounded better, had better reverb and gain, was lighter to transport, and did not require a separate sound system for singing or speaking! The output was also louder and clearer than my Boss Amp, as my guitar amplifier. Serious full-time musicians or part-time music enthusiasts like me can benefit from keeping one or more of these in their arsenal. I highly recommend for first-class Bose-like quality, without breaking the bank, in these tough economic times. You won't regret it. In addition, the Coolmusic Corporate office is extremely kind, helpful, and responsive to any questions or concerns you may have. I am 100% satisfied with both the product and the manufacturer. It is the BP40D Amplifier System and Bluetooth Speaker, for your electronic music needs.

I don't usually leave reviews, but considering how pleased I've been with this product and how often I use it, I'd like to give er a boost. I've been a busker for over ten years now, and until now I - like probably 90% of other buskers - used Roland/Boss products like the Cube Street and its big brother, the Cube Street EX. This amp handily beats the Cube Street in nearly all categories for $150 less and holds its own against the EX, for nearly $400 less. PROS: - Sound quality. Sounds grand for what it is. Plug in a mic and an acoustic guitar, and you'll get a sound that's surprisingly faithful to the source. Much better than the smaller (Boss) Cube. Playing back music via Bluetooth will give you a good idea of what you're working with - it's quite mid-rangey, like most smaller amps, and not particularly detailed, but with a fairly solid, only slightly muddled low-mid end, and a nice bit of "oomph". The top end isn't anything special. If an airy, modern-sounding top end on your vocals is a must, the Cube Street EX does a better job at that & might be worth the extra cash. - Loudness. I was wavering between this amp and the bigger version, the BP60D, but I'm glad I picked this one as it's a lot more portable and plenty loud. I've yet to have any need to go beyond about 12 o' clock on the master volume knob, and around 10 o' clock is where I'm usually at for outdoor settings like farmers markets where you're not trying to be overpowering. - The battery. Unlike the Roland/Boss amps, which use AA batteries, this one is actually rechargeable - and it lasts substantially longer. I used rechargeable AAs for my Cubes, but that's an extra cost and it was a hassle having to pull out the batteries, charge them, and put them back in every time. - Bluetooth for playing tunes off your phone or karaoke/backing tracks. The Cubes have an aux in, but that means carrying an aux cable (and a lightning adapter if you're using an iPhone). - The USB socket is powered, meaning you can use it to charge your phone, or even better, power your guitar pedals with up to 800mA of power (if you buy a USB to 9V center negative cable). - Phantom power. Admittedly not something that's going to see a lot of use in most live settings, but fancy to have. - Output. 80W in this tiny box, compared with 50W for the EX and 10W for the Boss Cube. - Portability. It's much smaller than the EX and packs about as much punch. - Inputs. Two microphone inputs and two instrument inputs, as well as a basic line-in and the bluetooth connection makes for six channels, comparable with the Cube Street EX and far outperforming the smaller Boss option, which has only two inputs. CONS: - NO ELECTRIC GUITAR AMP MODELING! And the gain is clean, you won't get any overdriven/distorted sounds out of this. You could get around this (and get a sound much better than Roland's COSM) by using a modeling pedal like the Strymon Iridium or one of the UAFX amp pedals. But if you want electric guitar amp modeling in the box, Roland is still the way to go. - No onboard effects aside from EQ/Reverb, and the reverb sounds like arse. However, you can always get your effects thru pedals powered by the USB port or a rechargeable pedal power supply. - Default EQ balance - on acoustic guitar I've found it's actually a touch too bassy - I tend to dial it back to about 10 o' clock to keep it under control. But usually smaller amps have the opposite problem, eh? - (Possibly) Build quality. The sides aren't wood or plastic, but some sort of composite board material. It's not terribly substantial. If you remove a screw, some of the material will come out with it. And you're going to want to be careful with rain, if playing outdoors. I was careless and let mine get pretty damp a few times, and after one particularly wet session it wouldn't power on anymore. That was obv on me, and I was ready to purchase a new unit, but I figured I'd take it apart and see if I could repair it. It disassembles easily and the electronics are straightforward enough. The problem turned out to be the power switch, which went tits up for whatever reason. I was able to replace it with a cheap generic rocker switch for about $5. But obviously not everyone's gonna be able to troubleshoot that sorta thing. I couldn't say whether this component is a weak part, whether there's other weak components or whether I just got unlucky, but you might want to pay the $35 extra for a 3-year warranty if you plan to use this amp a lot. All in all, I'm betting this company will be a nice kick up the arse to Roland to start upgrading their line. It was only a matter of time before there was some more competition in this field, considering how much better both battery technology and the sound quality of portable speakers have been getting. If you were thinking about getting a Boss Cube Street and you don't need FX or amp modeling, get this one instead. And if you were thinking about getting a Roland Cube Street EX, I'd seriously consider this lil amp as a solid alternative. If you need an affordable live monitor, this'll do great. If you're very quality-focused and have $700 to spend, I'd consider the Bose S1 Pro+ as one of the only clear upgrades out there.

Many great features and long battery life. Clear sound. Very versatile. For the money, the feature set is tops. This one is listed as 80 watts—I do have a 30 watt Fender amp which is far louder, for comparison, but the number and types of inputs make this an astonishingly-usable, portable PA/amp. Line-in and BT work for phones to play backing music through it, but there is no EQ for those inputs and that sound option is a bit flat. The sound is “ok” for streaming music thru it, not as good as “party” BT speakers. However, I have used my phone, a mic, and guitar simultaneously and it does sound very decent in that combination. It has phantom power so you can use condenser mics, too, but for this kind of singer songwriter busker amp, a dynamic mic works better for me, anyway (less noise). My acoustic guitar with built-in preamp sounds excellent thru this amp. My electrics without external effects are “average”. It’s not specifically a guitar” amp, but more of a jack of all trades device. Seems made for busking solo or with a couple others. I’ve also used it for karaoke with my phone, usb sound card, and a mic. Have not tested it in a big space but I get an inkling you’d need the bigger models for that. I’d say this amp is good for a 30-foot radius in front of you performance—a medium room. The only thing it’s really missing is some improved EQ for line-in/BT. Overall, I like it a lot. Best in its class. The next step up is double the price, so….

Producto defectuoso. Solo enciende si está conectado a la corriente . La batería no sirve o hay algún problema interno de conexión. Decepcionado de este producto a pesar de que los reviews eran muy buenos .

I used a Traynor 50 watt for five years. It broke down so I had to find a quick replacement. I took a chance on the Coolmusic 40 watt. Since I am professional guitarist that plays on the street for six months a year, and I have a very popular youtube guitar channel called ‘shatnershairpiece’, my main requirements are not only good sound, and good volume, but extended battery life. My shows go up to six hours so I tested the coolmusic amp one day for as long as I could play. I was happy to see that I did 5.5 hours and it was still running. Good volume level as well. I'm surrounded by traffic noise so the amp needs to cut through the 90 db noise and I had no problem being heard by pedestrians. The bass was really good. I actually had to turn it down. My favorite feature is direct recording from the headphone out. I use a zoom portable h2n recorder for all my street shows. Normally, on the old amp, I had to put the zoom in front of the amp. Now, with the coolmusic amp, I can record direct for much better direct sound and no street noise at all! This will help with the sales of my music as I sell my live shows to my fans. I use an ipad that has backing tracks loaded and they get played through the amp along with my guitar and effects sound. That is a lot of signal to carry but the amp can handle it! Another big advantage is the smaller size of this amp over the Traynor, and less weight. The traynor was 27 lbs and the coolmusic amp is 15 lbs, making it much easier to transport on the back of my bike! My only small complaint is the headphone out is very hot. I had headphone volume at 25% and it still overcooked my recordings. It's also very bright, so you may want to equalize your recordings in wavelab and reduce treble. For a company I had never heard of, this amp turned out to be a pleasant surprise. Looks good, (got the blue one) has many inputs for vocals, guitars, keyboard (I use this input, different recorded sound than using the guitar input), direct to phone recording, headphone out, usb jack. I now wish my old amp had broken down sooner!

I’ve beeb playing guitar for 45 years. Numerous amps. I bought the BP40D because of its size, battery, 2 mic and 2 guitar inputs but was doubtful. Well It is probably the best little amp I have owned. And I’ve had many. One reason I wanted it was my accoustic amp (90 watts) does not like electric guitar pickups. They just don’t work. The BP40D reviews said it works for both accoustic and electric. I’m 71. I had to hear this. My Les Paul and Fender Amer. Strat are both clear through this amp. And both Martin accoustics are crystal clear. You have to retune the amp knobs for both types of guitars but who cares. The amp does work with both types! My Shure SM58 mic is just as clear as through my 300w Traynor mixer. This coolmusic amp really is worth it folks! So easy to carry around, your buddy (or daughter) can plug in with you to jam, and it’s loud! They never had this when I was younger.

The BP 40 is a solid-looking, portable amplifier with a professional design and a good range of features for general use. Each channel includes low, mid, and high EQ controls, which is a welcome addition for dialing in sound. It comes packaged with an 18V charger and a 1/8” male-to-male audio cable Amplifier manual. Input options are versatile, including two standard channels, a dedicated keyboard input, and a built-in Bluetooth/MP3 controller. While the amp advertises 80W of power, this is split between two 40W channels. In practice, it’s effectively a 40W amplifier, which may feel slightly misleading for those expecting more output. I purchased the BP 40 specifically for use with a keyboard. While it functions adequately, it lacks the clarity and definition found in my other 20W plug-in amp. The mid and high frequencies can sound muddled, and the low end lacks the punch needed for dynamic bass performance. Voice input, however, is decent and clear enough for basic vocal applications. Pros: • Portable and battery-operated • Individual low-mid-high EQ controls per channel • Bluetooth and MP3 playback support • Decent vocal/voice input quality • Multiple input types including keyboard and mic Cons: • Sound clarity is lacking, especially in mids and highs • Low-end response is underwhelming • Misleading power rating (not a true 80W amp) • Not ideal for keyboard-specific use Verdict: The BP 40 is a decent all-around amplifier with good features for casual or general PA use. However, for musicians—particularly keyboardists—seeking clear, punchy sound, there are better options out there. It’s versatile, but not specialized.

I took delivery of this amp around 2 weeks ago and love it. I bought it mainly for outdoor gigs and busking, and also jam sessions round a buddy's garage. I have a Yamaha P515 digital piano and I use the keyboard's own internal speakers just for my own monitors and then this to project the sound outwards for the audience. I also use a condenser headset mic and this amp provides the 48v phantom power I need which saves me having to have a separate phantom power box. This amp is nice and light - around half the size and weight of my old Roland KC-100. On paper it's 80W, but the volume seems plenty and somehow seems more than my old Roland which was 100W. My condenser mic needs the most boost because of how light and detailed it is - so generally I have the main amp volume about 3/4 and the condenser mic about half way. The piano I only need at about 20% of its gain volume. Jamming with the guys for about 4 hours, and this includes one of the guys running his dynamic mic also off my amp - and the batteries still showed 4/4 from a full charge. That may not be linear I am not sure but I imagine this lasting at least 10-12 hours from a full charge for my usual usage. The built-in reverb for the vocals is very handy since I find a touch of reverb smooths my voice out. I don't really use reverb or chorus for the piano, since my Yamaha has all its own reverb settings, but I imagine the reverb and chorus would be handy for guitarists who just want these few simple features. Bluetooth works just fine. I am unsure why a few ppl said they had issues - you have to remember to hold the volume dial down on that control to switch to bluetooth mode (little light goes from orange to blue). It's really hard to see this amp being beat for the price, given the array of features and great sound it offers. I'd highly recommend this product, and honestly couldn't think of a better amp for my purposes.