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Description: Dual op amp three times before the DC amplification empty board: compact double-sided FR4 fiberglass board, the size of 26 × 26mm, suitable for small volume chassis assembly, to save space. High quality PCB, Japan KOA 1 / 4W colored ring precision metal film resistors (error through far less than 1%), high-quality eight-foot hole seat assembly for voltage feedback op amp, such as the NE5532, OPA2134, OPA2604, AD826, OPA2111, etc., then ± 5 ~ ± 18 to work. Board leaving two mounting holes for easy installation. Classic line, although simple, spend a good op amp, such as the assembly with the gold seal OPA2111 enable voice but wide range, High Definition force, rich in detail, tonal balance, the sound quality depends on the merits of the op amp's performance, resistance the acc.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.