These discrete opamps are hand built in Chicago at Process Haus with a digital Weller iron and Kester solder. Soldering is tight and neat and the PCBs are fully cleaned. Opamps are burned in and tested with a scope, and spectrally measured in Spectra Foo and/or Izotope RX. We also make and have listings for other OpAmps such as GAR 2520, CAPI CA-0252, and 990 types.

The GAR 1731 fits in the standard API 2520 foot print that is used in mic pres, Eqs and compressors. You can use this to replace API 2520 that are dead, or as an upgrade.

Product Photos:  All photos of the product are original photos taken in-house of units built at Process Haus.  

Warranty:  Parts and labor are covered for one year for component level failure due to normal operational use.  

Shipping: We ship OpAmps in a USPS flat rate small box. In 2023 thats over $9, but we cap it at that and eat the balance. If you order more than one, its only an extra dollar for shipping each additional OpAmp in the same box (the dollar covers the extra insurance). If you think you need more than one OpAmp, you can can save a bit combining on one order for shipping. Also, different OpAmps we sell can be combined to save on shipping.