Coolmusic BP40D Powered Acoustic Guitar Amplifier- Portable Bluetooth Speaker 80W W/Battery with Reverb Chorus Delay Effect, 6 Inputs,3 Band EQ, Black
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Availability:
In Stock.
Arrives
Sunday, Jul 26
Color: Black
Features
- 6 ChannelIt is able to plug in 6 different instruments together, such as guitar, piano keyboard, microphone, etc. 3 Band Balance meet the needs of various music style and the built-in reverb effect ensures natural and echo-like sounds.
- 80 WattIt has enough power for your needs, able to fit in different situations like live, studio, solo performance and practice, giving you more freedom to control your sound to be heard over the other musicians without pushing your amp out of its optimal operating range.
- BluetoothProvide with options of wireless connection, phone input, CD/MP3 input, and USB plugin, it is able to fit in the different connection types, it is convenient and useful with its master control, headphone input and DI output.
- Condenser microphone switch: The microphone interface is designed with 48V phantom power, compatible with condenser microphones and dynamic microphones.
- RechargeableIt can run up to 6-8 hours depends on the volume you use after 5 hours charge. And it can work with a connection directly to the electricity.
Description
Don’t settle for an imitation, COOLMUSIC legendary BP40D Series is the only choice when it comes to powerful lifelike sound on-the-go! BP40D is a high-power, ultra-portable sound system including 4 built-in speaker, wireless easy-pair Bluetooth technology. With an immense 80W dynamic power amplifier fused with a robust DOUBLE 6.5-inch woofer and wide-dispersion tweeter, experience rich, vibrant and lifelike sound that ensures to get your party moving! The legendary BP40D returns – ready for whatever you throw at it! Featured headphone monitor series function： support mobile phone headset synchronized sound and mute monitor The double 6.5-inch woofer has responsive sensitivity and dynamics and also the utmost portability. And for improving the acoustic guitar sound, double 2.5-inch tweeter is added. It has custom tweeter diaphragm, which beat any other types, bringing outstand 22KHz frequency response. INPUT1: Connect two microphones at the same time to satisfy two people singing at the same time. Also can adjust Low, mid, high and reverb.The volume of the microphone 1 and microphone 2 is adjusted separately by GAIN1 and GAIN2 of INPUT1 INPUT2: Connect two instruments (guitar, piano, keyboard, etc.)at the same time. Also can adjust Low, high and reverb,chorus,delay.The volume of the instrument 1 and instrument 2 is adjusted separately by GAIN1 and GAIN2 of INPUT2 PHONES: Connect to mobile phone for live internal recording,with volume adjustment
Brand: COOLMUSIC
Color: Black
Compatible Devices: Keyboard
Material: Metal
Output Wattage: 80 Watts
Compatible Devices: Keyboard
Output Wattage: 80 Watts
Number of Bands: 3
Speaker Size: 6.5 Inches
Power Source: Corded Electric
Output Channel Quantity: 2
Amplifier Type: Solid State
Connector Type: ['6.35mm microphone input', '6.35mm instrument 'RCA line '3.5mm AUX 'Bluetooth']
Color: Black
Enclosure Material: Metal
Brand: COOLMUSIC
Model Name: BP-40D
UPC: 768452833385
Manufacturer: COOLMUSIC
Model Number: BP40D
Mfr Part Number: SB-122
Item Dimensions D x W x H: 11.61"D x 15.74"W x 10.26"H
Item Weight: 8.48 Kilograms
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jul 26
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Black
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.
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Reviewed in the United States on August 20, 2024 by Bernie Lutchman
Color: Blue
It’s a small, quality, very portable amp with really good sound and is perfect for practice, as a personal monitor and amp in smaller, more intimate, inside gigs. It’s super easy to use and has several great features. I especially like having the 48V phantom power so both a condenser and dynamic mic scan be used. Also cool that you can live broadcast or record ideas directly into your device from an internal line. It’s small but mighty and I love the blue. The Coolmusic BP40D was also a perfect fit for my budget and I feel like I got a lot of bang for my buck.
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Reviewed in the United States on April 23, 2026 by Deanna L.
Color: Black
I'm a fairly busy musician. I play at a small wine bar EVERY Friday and Saturday night. This thing is perfect for the small venue, and I pretty much have all inputs and volume controls set mid range and it sounds great. Of course, if I said it sounded awful, then that could be a direct reflection on me, and not the amp. haha. But I loved this unit so much, I bought a second one. I also live stream, with a very minimal setup, just using a spare phone. So the record output works perfect, running straight into the phone. Then I don't have so much background noise. There's plenty of inputs for me to occasionally play the guitar on some songs, then a keyboard plugged in for other songs. When the venue gets too noisy I just plug in some noise cancelling earbuds in to the headphone jack and it drowns everybody out. The battery life is really impressive. I usually play for just over 3 hours on a Friday (1 mic and electric piano). I leave everything set up and come back in the next night and play for 3 more hours, and there seems to still be about half battery left. (I've never run it down completely to see how long it lasts. Because of course everything shutting down in the middle of a gig might be embarrassing.) So then I just plug it in at home for the next week and it works great. It's super light and easy to lug around. I always put everything on a dolly for one trip, and the size of this thing is perfect. I highly recommend getting this thing. Like I said. I ended up buying two of them.
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Reviewed in the United States on July 28, 2023 by Danny Gali
Color: Blue
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….
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Reviewed in the United States on August 15, 2025 by I_Buy_Stuff
Color: Black
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.
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Reviewed in the United States on January 25, 2024 by Amazon Customer
Color: 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.
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Reviewed in the United States on January 26, 2026 by Amazon Customer
Color: Blue
This is an amazing amp with a ton of features, especially considering the price. I am somewhat of a casual player, and mostly use this to practice playing/singing for the occasional open-mic, or to jam with a couple neighbors in the garage, and it's been perfect for that. The multiple guitar AND mic inputs are perfect. The effects work very well, and you have volume controls for all line/mic inputs. The bluetooth capability is an added bonus, and allows me to practice along with tracks, or to use a prerecorded drum track. The build quality is also much better than expected - it's a solid/heavy amp for its size (while also being extremely portable), and I expect to get many years of service. Oh - final thought, I've also been using the amp with its mute-button engaged (another cool feature), to run the amp effects through my Focusrite audio interface, and stream online.
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Reviewed in the United States on April 19, 2026 Reviewed in the United States on April 19, 2026 by BCFL
Color: Black
Review of CoolMusic BP40D (Background: Electrical Engineer, Age 77, Ham Radio Op - so I know equipment) I have 2 other amps, but I wanted a fully portable amp that had two input channels - one for mic and one for guitar. I wanted an XLR input for the mic. I wanted a real amp, not a toy with a 4" speaker. I was less interested in fancy DSP processing (see Spark). The BP40D fills the bill, and at a great price. Although a bit heavy (15 lbs) and big, I was willing to sacrifice that to get the sound that I wanted. Pros: - Loud, great sound. The two 6" speakers and tweeters do the job. - Terrific battery life. I ran it for 7 hours playing via the Bluetooth input, and the battery was only 1/4 used. It charges fairly quickly. (Your results may differ) - Nice control panel layout, very logical. Good quality controls and switches. Cons: - does not have the 9v output for effects pedals that other CoolMusic amps have. This would be nice but not a serious issue for me. - Size and weight - but if you want a sweet sounding amp, you have to pay this price. Other nice features: 48v phantom power so you can use a condenser mic - a nice option. Allows external Bluetooth connection so you can use it to play music between sets. Reverb, chorus, and delay work OK - nice to have but you will probably want to use external pedals for better control if needed. Carrying handle. Hole in the side so you can mount it on a speaker stand. Line-In / Record-out could be handy. Headphone output with separate volume control. So it's a great sounding, fully-featured amp at a great price. A winner for me. (No connection to CoolMusic)
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Reviewed in the United States on December 1, 2023 by R. Seidel