One for Capt. Matthew Roland!': Cadets, Special Tactics Airmen honor fallen Academy grad > Air Force Special Tactics (24 SOW) > Article Display
![GK QuadBox Roland US-20 and GKP-4 clone with user expandability and customization. Dual US-20 with 1 input and 4 outputs GK QuadBox Roland US-20 and GKP-4 clone with user expandability and customization. Dual US-20 with 1 input and 4 outputs](https://www.joness.com/gr300/pics/quadbox/gk_quadbox.jpg)
GK QuadBox Roland US-20 and GKP-4 clone with user expandability and customization. Dual US-20 with 1 input and 4 outputs
![Amazon.com: Roland SP-404MKII Creative Sampler and Effector with 16GB Internal Storage, 32-Voice Polyphony and 160 Samples Per Project (WARRANTY ONLY VALID IF PURCHASED FROM AN AUTHORIZED US ROLAND DEALER) : Musical Instruments Amazon.com: Roland SP-404MKII Creative Sampler and Effector with 16GB Internal Storage, 32-Voice Polyphony and 160 Samples Per Project (WARRANTY ONLY VALID IF PURCHASED FROM AN AUTHORIZED US ROLAND DEALER) : Musical Instruments](https://m.media-amazon.com/images/I/91jx69qJYBL._AC_UF894,1000_QL80_.jpg)