They are both amazing quality broadcast microphones, however the SL300 has a couple of extra features designed for users who will be recording instruments in addition to vocals.
Extra SL300 Features -
- -10db Pad Switch
- Low Pass Frequency Switch
If you're looking to record vocals such as voice over, singing or rapping we'd recommend the SL150. If you're looking to record vocals and instruments or sound effects we recommend the SL300.
Both microphones come complete with a Shock Mount, USB Cable and carrying case. Both microphones also come with a 30 day money back promise, so you can try them out and return them if you're not 100% happy with your purchase! Lovely.
If you're looking to improve the quality of your recordings, we also offer a great range of pop filters and Vocal Booths, which can be found here: