Description Orange AD140 Lead,Twin Channel Head Valve Kit Fitted with Electro Harmonix EL34 Platinum Matched Quartet output valves and Electro Harmonix pre-amp valves. 4 x Electro Harmonix EL34 Platinum Single 4 x Electro Harmonix 12AX7 We recommend this set of valves that we regard them as a great upgrade to the stock valves fitted In the Orange AD140 Lead,Twin Channel Head. You will experience Excellent tonal balance, harmonic content, low noise floor, and low microphonics ,with Nice, warm tone. We recommend that you check your BIAS setting when fitting the output.
