Click to enlarge These custom DOA's are not for sale on our site. For purchase, please contact Scott directly via email: scott@scottliebers.com

Scott Liebers originally designed his SL-2510 to improve reliability for an on-air music production 32 channel API Legacy console. Within 4 years, many of the stock original 2510 opamps started to fail, especially in the EQ sections. Scott blames the failures on the potting compound used to enclose the guts of the 2510's. This potting compound has a consistency similar to a pencil eraser. It makes a nice insulation to bottle in the heat generated by the output transistors eventually cooking them. Additional longevity improvements were made to the output stage. By putting the output stage on a separate PCB, heat sink pads could be added and larger output transistors are used to better dissipate heat. In addition to having better heat dissipation, SL-2510's are repairable, should a failure ever occur. Over 30 SL-2510's have been in use, 24/7 for the past 5 years in MPR's 32 channel API Legacy console. This console is often used for live music broadcasts and must have a low failure rate. So far, none of the SL-2510's have failed.

Additional information and photos:

Click to enlarge

Click to enlarge