– BP40D Rechargerable Acoustic Guitar Amplifier Electrical Guitar Amp-Keyboard Amplifier 80W W/Bluetooth with Reverb Chorus Delay Effect, 6 Inputs,3 Band EQ

Having previously purchased the cheaper "Coolmusic Portable Acoustic Guitar Amplifier, For Performers On The Go, Built-in Bluetooth (40W Battery-Powered)" and having had to return it because of a fault, I was a little hesitant about buying the more expensive but better spec'd 'Coolmusic BP40D Rechargerable Acoustic Guitar Amplifier Electrical Guitar Amp-Keyboard Amp" I am very pleased i did because the BP40D is an excellent product. I've only used it for a few days (hence no battery life rating) but so far i'm delighted with the sound quality and the range of inputs and outputs, which you can see listed on the spec. Apart from running a condenser mic off the 48v phantom power, with another mic input for a dynamic mic, I've been playing electric guitar through the BP40D, even using a Boss Blues Driver to give a bit of grit to the guitar sound, and the amp takes the pedal well. Amongst other features is the record out to mobile phone input/output jack, using the supplied 4 band 3.5mm minijack lead - very useful for recording ideas. While the product itself I rate as excellent, especially for the money, the manual is IMHO fairly lamentable, especially over the "Power/Charging" section and "Input 1" mic section (i.e don't use phantom power on your dynamic mics!) But don't let the poor manual put you off an otherwise excellent product which is ideal for home practice, busking, use as a mini PA etc. Despite the manual I've given it 5 stars and am very pleased with this amp - thank you CoolMusic for such a useful, well thought-out product at a very good price - but you need to up your game on the manual! Further thought after several years light use: all the above stands, it has been a great purchase, but with one additional proviso - the all-important line input socket is nothing like robust enough and I now have problems with crackles from the 3.5mm jacket 'moving' in the socket. CoolMusic, you have to make the Line in socket more substantial, perhaps an XLR option even. So IMHO you need to up the quality on this essential input. Revised comment April 2025

Sturdily built rechargeable street amp/monitor. Not the lightest but still really portable (with built-in carry handle) and can be floor or stand mounted. This amp is LOUD. I run my Yamaha arranger keyboard through it and it sounds remarkably good considering the size of the built-in speakers (2 x 6.5inch woofers and 2 x 2inch tweeters). Comes with 5 usable inputs (2 mic, 2 guitar and line-in) plus a USB input for backing tracks etc. Headphone and separate out to another amp also included as well as Bluetooth connectivity. Instruction manual is adequate. The rechargeable battery is built in (charger/mains adaptor included) The built-in effects (reverb, chorus, delay) and EQ's are good but there is no amp simulation (like on the Roland) and also no built in guitar tuner (pity). Conclusion: Hasn't got all the frills of the Boss/Roland street amp but costs over £100 less (at the time of writing this). Coolmusic claim total output is 40 watts so it should blow the pants off the Boss/Roland. For the price, I like this amp.

I was looking for a battery powered amp which allowed me to plug in 2 electro acoustic guitars, 2 microphones and support backing tracks from my iPad, all at a sensible price. The reviews on YouTube for this amp were positive so decided to buy one. I had to wait a few weeks for it to come back into stock, but the seller messaged me when Amazon had received new stock and the amp arrived the following day. It exceeded my expectation in terms of versatility, allowing me to plug in my 6 string and 12 string guitars and set the gain for each guitar. I use a dynamic mic and found it needed a fairly high gain so purchased a Klerk Teknik microphone booster from Amazon, which has solved the problem. It also allows me to plug it a pair of Lekato wireless mics which means it’s great for practicing songs with friends. I also Bluetooth my iPad to the amp to provide backing tracks to support our worship songs. I use it when I play in our local church worship band and use the DI output straight into the mixer desk. It has more than enough volume to fill the school hall where our church meet, if necessary. The sound quality is great at this price point, but for me the versatility and the ability to support 2 guitars, 2 mics, Bluetooth and another line in, together with the DI and headphone output make it a superb amp. And it can run for many hours on its internal battery so great for busking. Totally recommend this amplifier. Well done Coolmusic.

Absolute babe of a machine. Sound is clean and really loud (if you want it to be) great amp for mics, guitars and more. Bluetooth works a treat and the best part is the battery lasts for hours! Lasted at least 4 full hours of full use including two microphones, Bluetooth music at loud volumn. Whipped the charger out and continued on as it works just like a main supply of needed. Love this machine. Great Harry handle too.

The Coolmusic BP40D is an excellent quality rechargeable acoustic amp. It's ideal for busking or camping where access to power is limited. The device will work for up to 8 hours from a single charge and produces fantastic quality sound. It has four instrument inputs and two auxiliary inputs. The device also has independent EQ adjustment and sound effects. It's also bluetooth compatible for streaming accompanying music straight from your smartphone. Price is fair and reasonable, quality is excellent and overall value for money is very impressive.

It is not really suitable for electric guitars. My amp only charges to 2 green lights and 2 red stay on when the fully charged blue light comes on, so there something wrong with batteries or charging. Seems the batteries are only half charged which would be risky. I will drain batteries and recharge again. This is a glorified karaoke unit. The Gain has little effect. Its definitely not for heavy metal or soft metal fans . You really need some effects pedals for rock. There is too much of this kind of mass produced cheap rubbish. Not recommended for serious guitarists..

It's a good speaker for maybe indoors performances but definitely not loud enough for outdoor. I had to bring all volumes at the maximum but wasn't still enough...

I purchased this to use with a friend to play outdoors. We needed an amp that would accommodate 2 acoustic guitars and a microphone, so this fit the bill. The Amp is quite rugged in its design with corner protectors installed and I can confirm it can take a bump or 2 as it fell from our van only the other day, leaving my heart in my mouth, but no harm was done! The sound quality is exceptional, far above what I was expecting. with both guitars and vocals playing it it easy to hear and distinguish each input, unlike other buskers I have seen where the vocal becomes distorted compared to the instrument, in this case the clarity is maintained for all inputs. Connecting a Shure SM58 mic, the gain had to be raised significantly more than the guitar inputs, to get a level that matched but a balance is very achievable and the preamps are very quiet. I have since bought a microphone signal booster that runs from phantom power (provided by the amp) and this means that I can set the input gain much lower on the mic. Volume wise, the box has power that belies its small form factor and can be cranked up to easily project out into a high street, without losing quality. Battery life is stated to be about 4 hours and I can confirm that my unit has far exceeded this having played solidly for 6 hours and still not falling "into the red" with regards to charge levels. Being able to connect a Bluetooth device is also a nice feature and has meant that the speaker has also found use during garden parties this summer for background music. For the price i paid I was not expecting anything like the quality provided by this little amp and I would highly recommend it!

vraiment super étonné car c'est un ampli qui rivalise tranquille avec d'autres marques, il est efficace, bon son, plein de réglages sur chaque sortie et une facilité déconcertante d'utilisation. L'aspect est vraiment sympa et il est pas lourd, donc facile à déplacer si besoin. j'y ai déjà branché 1 micro et 2 guitares et aucun problème ça sort bien pour faire des répétitions à la maison ou pour jouer devant des amis ou un petit groupe.

Geat Amp does everything one could want with great sound at a great price

ベースアンプ用として購入。 何よりも充電したらかなりの長時間持つであろう機材は素敵。 あと、小さなホールとかでミキサーと音響が同時にできるのがいいと思います。 楽器2台（＋ボード）とボーカルも2本いけます！ ちゃんとD.Iアウトもあるし、至れり尽くせり！！

Grandissimo amplificatore. E definirlo amplificatore è riduttivo. Ci collego il mio microfono shure beta 58a e rende benissimo, malgrado i pochi effetti a disposizione. I pochi che ha fanno bene il loro lavoro. Avevo una boss street 2, ma questa la supera in volume. Ha inoltre la batteria integrata. La chitarra (io uso una acustica) collegata rende bene, ma con un pedale abbinato diventa eccellente. Inoltre ha una funzione stupenda di REC out, in cui con un aux colleghi il tuo telefono e registra tutto lì sopra in presa diretta (lo fa anche se registri un video, quindi è ottima per pubblicare contenuti sui social e avere una qualità immensamente più alta rispetto al semplice microfono integrato nello smartphone), ed è come avere una scheda audio a disposizione. Fa bene tutto e non posso che dare 5 stelle.

Amplificador de guitarra con entradas independientes para dos micrófonos, dos instrumentos, una entrada MIDI y una aucikiwr. Cada entrada incorpora sus prop8oa controles de eco, ganancia y reverberacion. Con un poco de paciencia, se puede afinar muchísimo la calidad de sonido. El chasis es fuerte y tiene topes para ponerlo en horizontal o vertical. Además el asa permite transportarlo con comodidad.