here is a picture of my bass amp build. it is working but not as loud as i thought it would be. that it is working i know that the wires coming off the power transformer are landed correctly, because i used the color coding. so then when i was building the thing i just taped off the ends of the extra two brown wires, and now i am wondering about them. could they be why its not as loud as i thought it would be? are they for a cab or something? are they bled off the red HT IN and i could just attach them as well to boost the sound? i don't want to try anything without some expert advise. so please let me know what you think about these two brown wires with the ends taped up that are to the left of the posted image. thank you.