Sansamp RBI possible problem

[Richbass101]

After correcting my ground issue with my bass I thought I would hook the preamp up with the 1/4" instead of the xlr. Well the level control on the front does not work. All volume now is by the power amp ( Crown XLS1500 ). The drive, presence, blend, bass & treble work, just not the level control. When the preamp was hooked up before with the xlr connection the xlr control on the front worked. Is this normal or a bad pre?

 

[tech21nyc]

It's possible you have a defective unit. The only other thing I can think of is that maybe you plugged into the preamp send instead of the 1/4" out. If not, you should get an RA from our tech support team and send it back for service. Be sure to give a detailed description of the problem.

 

[Richbass101]

Thank you for your response, I'll double check the connections and if the problem is still there I'll send it in for repair

 

[images_bass]

Richbass101, I have the exact same issue happening to mine. Did you figure out what was wrong??

 

[dStar]

You're not going out of the parallel output, are you?

 

[victhebassplayer]

I have a similar issue the RBI works well as a DI but I do not seem to get any change in sound when I tweak any of the knobs. Please guide me through the set up connections? I did not use the send and return connections.

 

[Downunderwonder]

First trick is to read the manual. You can download it from tech21.com for free.

The 2nd trick is remembering to hit the Active button on the front.

 

[LeebassDex]

I bought my RBI online from an Ebay seller. It has the same issue as the OP, no level control and no to very little change when using the drive control. I have yet to use an XLR cable (need to buy one), so I will hold out returning it until I try that route.
BTW, this unit is fairly basic and the instructions are easy to understand. Using input 2 there SHOULD be an adjustable signal from the Sansamp 1/4" output. I have a signal, but only the tone controls (presence, B,M,T controls are effective). So, I can only surmise the unit is defective.

 

[tech21nyc]

Did you try both the front and back inputs? No pad switch engaged? Is the active button on the front engaged?

 

[LeebassDex]

Yes, and Yes. Active button is engaged. I also tried the XLR output direct to my amp. There is no level control and very little drive effect.
Thank you. I have emailed Tech21 for and RAN to return for repair.