5E5 Pro
TOPOLOGY
Two independent 12AY7 channels, each with high and low sensitivity inputs. A second gain stage consisting of one half of a 12AX7, leading to a 12AX7 cathode follower that drives a tone stack with independent treble and bass controls and local negative feedback. One 12AX7 recovery stage connected to global negative feedback with Presence control. 12AX7 cathodyne phase inverter. Two fixed bias 6L6 power tubes drive a 15″ speaker at about 30 watts.
DESCRIPTION
The Pro is part of a trio of late 50’s amps that were all based on the same circuit with minor changes supporting different speaker configurations: The Super, the Pro, and the Bandmaster. The 5E5-A Pro pairs this classic circuit with a single 15″ speaker giving it a unique voice. While most people expect the 15″ alnico speaker to be bass heavy, it’s actually bright and articulate with firm low frequencies. For many players, this is the sound. But the 5E5-A can be ordered with a single 12″ speaker as well. The 12″ Celestion Gold is a favorite in this amp.
Leo re-used this circuit design over and over for good reason. The Pro is pretty close to tweed perfection; delivering warmth, punch, beautiful cleans, and a satisfying grind when cranked up. The big cabinet and 15″ alnico speaker provides a unique soundstage and powerful presence.
BASE CONFIGURATION
Weber 15A150 speaker, Mercury Magnetics transformers, Jupiter Yellow capacitors, carbon composition resistors.
Base Price $1700
OPTIONS
Speakers
- Weber 15F150 -$90
- 12″ Celestion Alnico Gold +$40
Capacitors
- Sozo Blue -$20
- Jupiter Red +$60
Cabinet
- Aged lacquer Finish +$95