  Smooth, yet punchy, with a sweet harmonix finish. Ampeg owners will rejoice! Electro-Harmonix 7591A EH's are available in platinum matched sets. Platinum matching process consists of a 24 hour tube burn-in period followed by a bias (plate) current measurement in milliamps. |
Triode, USA Customer Service M-F 9AM-4PM CT 1-800-774-3201 Email us Anytime: questions@triodestore.com |