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need heelp with sansamp bass driver di

Is the LED on? It should be. If not, do the tongue test on the battery. Also try plugging the unit into AC power. Maybe something's wrong with the battery connector or the wires where they connect inside the box; in that case, it would work only on AC power.

EDIT: You did hit the footswitch, yes?
 
ok thanks for the help guys. ill try to answer all the questions in one post. The bass is a spector legend classic 6 string and the amp is a hartke. yes i did hit the footswitch and yes the led light comes on and im not sure where the line/instr should be set to. when i plug into the 1/4 output the volume is really the problem it is a 400 watt amp and it has to be turned all the way up to be able to hear it (but only with the pedal) an when you do hear it it is just pure distortion
 
I'd go with a power supply... 9v 300+ mA, make sure polarity is right. Batteries never last long in pedals for me... usually 8 hrs max or no more than a few days (if u use a battery, unplug cables from the pedal between uses as they could be draining it). Everything on Noon should give you some of it's basic flavor and enough output. If you want the pedal to blast output, switch it to Line.

I actually sometimes run my BDDI into a Hartke 1x12 combo that one of the drummers I work with has. Works fine... got some great tones for the mix using that rig.

I have just recently started trying my Sansamp as a DI into a power amp. Not quite the tone I like but I am learning to use it better (I love the Sansamp but always hated it solo). For DI use like this I cut treble/bass a dash and use plenty of drive. To get a decent sound I really have to roll around the controls on my bass, mids on 10. I guess I use a *ton* of EQ and shaping on my heads to get my tones just where I like it.

The way I typically incorporate the BDDI is to run burly ass mids on my head and run the BDDI in the FX loop blended with a dash of its scoopy/presence/OD.
 
They are specs for a transformer/power supply if you wanted to buy one off the shelf somewhere. You could get a standard "Boss" style power supply from GC or similar place too but it would probably be a few bucks more. Most transformers will have a label showing the polarity or an adjustable tip/plug where you can reverse it. The jack for a power supply on the BDDI should probably have some kind of diagram close to it showing the polarity.
 
ok guys tried replacing the 9v battery and it didnt help the volume is still barely audible tommorrow ill get the dc adapter so well see if that works. is it actually possible that a dc adapter will make my bass louder than a 9v battery. just wondering cause thats what everyone is recommending