Roost - Session Master 150

This is a fully tested kit contains four JJ ECC83’s (12AX7) and six JJ EL34 II’s.  Note that our JJ EL34 kits use the much improved JJ EL34II  because it has vastly richer mid tones than the cheaper JJ EL34. The standard JJ EL34 has a reputation for sounding thin and JJ made the EL34 II to address this tone issue.   We supply a test certificate showing the matching test results.