Do you mean the balaban - the ethnic blown reed instrument??. No results when Googled balabon
If so there are samples on the free MOXF Inspiration In A Flash sound library.
User 3 1 A01 Balaban Ethnc Blown
User 3 2 A02 Airy Balaban Ethnc Blown
User 3 3 A03 Stereo Balaban Ethnc Blown
User 3 4 A04 Balaban Touch Glide Ethnc Blown
You need a flash memory card installed though as it uses either 1 or 2 specific waveforms.
I didn't really know from your reply if that was the instrument you required
I've since found that there is also the Balafon - an ethnic African wooden xylophone??
Unfortunately there are no samples on any free sound libraries that I'm aware of.
However it is on the Digital Sound Factory Motif World Xpedition collection -
011(A11) Balafon Trem AF
022(B06) Balafon Trem Vel
061(D13) Balafon Tremolo
062(D14) Balafon Natural C3
063(D15) Balafon Natural Trem
Once again you'd need a flash memory card installed for the waveforms.
You could always try tweaking a marimba voice or similar....
The other option is to download the samples from the web and make your own voices using Melas Waveform editor.
Google "balafon sample" for websites - the free Hugo Kant download has many individual note samples in .aiff format
You would then have to spend time and effort doing the work, however it is rewarding.