Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: where is the bass? heard similar speakers to this with great bass. this one has no bass. help
Document: So don't worry about leaving it on by accident. I love this speaker and it's great for working out, working around the house, or supplementing small insufficient computer speakers for watching movies. Sound quality is better than what you would expect for an $18 product. If you're on the fence between the X-Mini or the Altec Lansing Puck speaker,  let me help you out. I've heard them both side by side. The Altec Lansing IS louder. But not by much.
I turned my work desktop into the office server and started bringing my laptop to work to take my desktops place. I had logitech speakers that of course sounded great but with my desk configured differently and no monitor to help hide wires it was just ugly. So i bought this little speaker because of the great reviews. This thing rocks! i love the matte black and red speaker, and i love the bass! The logitech sounded great but man i have to say both are about equal in sound quality.
This speaker works great. I've purchased small similar speaker but have never had one like this one. The bass that comes from this mini speaker will blow you away. Now I am looking to invest in a few more to really make some noise.
This speaker is perfect for school, travel, etc. I've had a few black ones previously, which I gave away during trips...perfect gift for peeps that help you out along the way. For some reason, this blue one doesn't seem to have as much bass as the black one, especially the first one I had. But yeah, you can't really go wrong with these things when comparing sound quality to size (and price).
When this was delivered, my girlfriend was over so we opened it because she was curious to see what it sounded like compared to the $10 Bluetooth one of a similar design that she has had for a few months. Besides not being a Bluetooth speaker, this X-Mini II blew hers out of the water in every way.Immediately, we were both impressed by the power of the bass. It really does thump and vibrate especially if you have it sitting on a solid surface.
I bought this speaker after carefully reviewing similar devices. I am incredibly happy with my purchase because this little speaker packs a punch when it comes to volume. And not only that, but this speaker also generates intense bass especially for its size and the clarity on the music quality is amazing.I do have one particular drawback, which is when I put the speaker on standby by locking it in its most portable form, after a while it kind of just stayed that way so the bass became affected.
Battery life exceeded my expectations. Speaker works best if you but it in something that will help resonate the bass, like a pot. Great for camping because of size/weight. Only drawback is I wish it had a longer plug, that maybe retracts into the speaker. It's lasted two camping trips now. Note: won't work well in a "car-camping" environment, as you won't be able to out-blast the trucks that have 18" subs around you.
I love my little speaker. I brought it to work with me and after my co-workers heard this lil powerhouse, 5 of my co-workers ordered one as well. I pride myself on having a keen ear for music and the bass is bumping (for something this small; remember, it's all relative).It's sturdy and feels good to the touch.
Although my packaging was "pre-opened" in appearance everything was included and everything was in mint condition and worked. I heard about all of the knockoffs and checked since it is a gift. It passed the test The sound performance was amazing. Bass can actually be felt let alone heard when the expansion chamber is extended. I am quite pleased with the sound. As this is a gift for someone I just may have to get one for myself...or maybe a Kinivo?
This speaker sounds decent if you have two of them (daisy chain them). I only purchased one and the sound volume and quality was very disappointing. I compared it with my portable Panasonic speakers that I've had since the beginning of time and it did not compete. For $50 you're better off getting the Monster Clarity HD which will blow these out of the water for similar amount of money.
Answer: Anyone who's heard "great" bass from a speaker of this size hasn't heard many good speakers.  I have yet to find a speaker for under $80 that can play "down-under" meaningful bass.  Some simulate a "loud" boomy bass-effect in the 100 Hz range, but it's physically impossible for any speaker of this size to play authentic bass frequencies, such as those at 20 Hz.