Martin SPA Fishman Thinline 332 Plus acoustic pickup system id: 44453 sku: 18A0057 brandname: Martin SPA Details Fishman Thinline 332 Plus acoustic pickup system Related products 18A0056 Martin SPA Fishman Thinline 332 acoustic pickup system acoustic guitar pickups 18A0055 Martin SPA Fishman Thinline 332 Active Jack acoustic guitar pickups