5U4-GB Electro-Harmonix

A new geometry is utilised to reduce odd order harmonics for a sweet top end while the peak power is extended to improve low frequency response. A new glass formula body ensures long life and...

“Very close sonics to a Mullard” Extremely musical with sound that is rich, smooth, highly detailed without being edgy. Sweet mids, deep bass, extended highs. Overall, a well balanced valve.