• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join freeLog in
    Want zero display ads or expanded classifieds tools? Compare plans.

bass wattage vs. Guitar wattage

although I am aware that bass amps need more wattage to compete with guitar amps, i wasn't sure how much. I recently was playing with a guitarist who was using a 30 watt combo amp (line 6 spider II). I had to turn my line 6 lowdown 300 (combo) almost all the way up, although the channel volume was relatively low. Does anyone know of a ratio for bass-wattage-to-guitar-wattage? feel free to discuss similar situations.
 
Casual rule of thumb: use 10X their wattage. HOWEVER, the reality is that wattage does not directly correspond to loudness. If you want the "real deal" information, you'll need to spend some time reading both here and in the Amps forum, to learn the many techniques for getting enough loudness from your rig, almost irrespective of watts.
 
The real issue is the combination of power AND the efficiency(sensitivity) of the speaker. Lots of power is no good with pig of a speaker and a really good speaker with high sensitivity is useless without any power.

Power + Sensitivity = Thunder

Whether it be guitars, bass, PA or whatever.

Read up in the amps forum here or the study hall section of Prosoundweb.com

Derek