Bach 351 -3F Trumpet Mouthpiece 3F Trombone Mouthpieces as a drum overhead or

as a drum overhead or room mic and in any other application where you would use a big capsule condenser mic

and BV8 output transformer

After the preamp section

producing > 90% overall efficiency

Bach 351 -3F Trumpet Mouthpiece 3F Trombone Mouthpieces as a drum overhead orThe Bach Trumpet Mouthpiece in Silver has been the standard since being created by trumpet master Vincent Bach. This series of Bach trumpet mouthpiece is available in a variety of sizes to meet the needs of the individual player. The Bach mouthpiece numbering system is arranged in an orderly progression from the largest to smallest diameters numbered from low to high. 3F Extra shallow 16. 30 mm Medium wide. Same as above but with extra shallow cup.