PRO money back guarantee: We are so confident that the build and sound quality of our PRO knobs is better than any other RCA knob out there, that if you are not completely satisfied, just ship it back within 10 days of receiving it for a full refund. Offer excludes eco knobs Lead time 1-2 days LAF is bringing back the OG...... the cartel style aluminum cased bass knob. Yes, there is a difference between the ECO and PRO. Besides being a larger case, the PRO cable is night and day different than the eco cable. Our LAF PRO cable and pot are field tested and proven to lower noise and gain db over any other knob out there. The eco is for the budget minded bass head that wants a longer lasting better built RCA knob, using standard RCA cable with a 22awg conductor. Eco uses generic 50k POT. The ECO 30" (LAF50k "pro" Potentiometer) uses our NEW exclusive potentiometers, guaranteed to gain dbs, smoother sound increase and last longer than any potentiometer on the market The PRO uses one microphone cable per channel, resulting in a 20awg conductor, plus shielding, plus cotton string for strength. These will last a lifetime. Pro always uses the LAF50k potentiometer Pro warranty is good for 3 years, eco warranty is good for 1 year. *Logos cost extra so ask if needed
