http://www.amazon.com/Vox-AmPlug-Bass-Guitar-Headphone/dp/B001GH4H3W/ref=sr_1_1/177-9735556-7435541?ie=UTF8&qid=1403819026&sr=8-1&keywords=portable+bass+amp
 
im getting tired of lugging my 15 fender rumble around, i live in an 3rd floor apt
 
Are there portable bass amps that can handle a low b?  
Greetings to my ole buddies.

I just got this Eden practice amp - http://www.musiciansfriend.com/amplifiers-effects/eden-ec8-20w-1x8-solid-state-bass-combo-amp?source=3WWRWXMP&kwid=bingproductads-plaid^26563560068-sku^H96598000001000@ADL4MF-adType^PLA-device^c-adid^3336427321
 
It does not handle loud volume very good, but it does handle a low B at lower volume just fine. It is perfect for practice & learning songs, & it has a headphone & Aux jack to plug your MP3 player in & play along. I just took it on a trip to Alaska & it fits perfect in a carry on bag.
 

That Vox thing looks really cool!
I have a Carvin MB15; just under 33lbs. And it has a headphone out. Not sure about a low B, but my D-tuner (tuned to D) sounds great.

Your concern should be if it can give enough headroom to handle an active bass without distortion, because handling the low B relates more with your phone than which amp you've choose. I use an AKG K-414 light phone at home and smaller gigs because it is cheap, loud and can boost lows more than other similar phones.

I just bought that little Vox Bass Headphone amp. Soooo easy to plug in my MP3 player and learn songs. And I can practice late and not wake the house.
 
Sound quality is very good too. I was playing one of my basses through it and thinking why doesn't this bass sound this good with my amp... You've got to use robust quality headphones, but it handles a low B no problem (actually Bb in my case).
 
No problem with my Series I. I've used it with other passive and active basses and it works really well.
 
I haven't blasted the volume, but at practice levels, nice full sound.

just repaired the headphone input for the third time. but sounds very good.

Can this Vox thing be used as a 'pre-amp' for computer recording?
 
Not that I need another toy, the MB15 has a headphone out, but the idea of plugging in a CD/ MP3 player sounds fun.

 Can this Vox thing be used as a 'pre-amp' for computer recording?  
 
I haven't done it myself, but in the course of researching this purchase I did see some reviews where people were doing that with the guitar version. So apparently, yes.

i keep going back and for the tween  the bass pod, which i had once or the jack model. Prices on ebay are high right now. round 80 used. I went with a jack model. it has a jack so i can plug my ipod in and play to that.  
went with this one. will let ya know
http://www.musiciansfriend.com/amplifiers-effects/c-tech-pocket-rock-it-v1b-bass-headphone-amp

Just got it.  
Obviously the better the headphone the better the response. I used etymotics(in your ear)which is a high end headphine
Overall the sound was pretty darn good. There is some high end hiss when you crank it.
NO issues with my low b string.  
And if you want to blow your drums out, you'll get distortion.  
The jack has 5 positions. volume filter q switches
a must for if youre a night person