Reproduction Ampeg Portaflex with Modern Electronics
Stephen B Harper
Guitar and Bass Speakers
I wanted a high performance stage rig for both upright and electric bass to match the cosmetices of vintage amps I own.
Match the cosmetics of vintage Ampeg Portaflex amplifiers I own and improve them sonically with modern electron ics and speaker.
Slot loaded port
3/4″ Baltic birch plywood w/ internal bracing and lined with dynamat
With the suggestion of the tech guys @ Parts Express I used the Celestion driver in my project. ALthough a bass guitar will really only go out to 4,000 HZ having the 4″ wizzer cone and the ability to be flat to 10K allows harmonics to re reproduced better than any combination of products I have owneed and used in 40+ years of playing upright and electric bass.
About the Designer:
I am a mechanical engineer by training and own an audio / video design and consulting firm.
Project Parts List:
|Celestion K12H-200TC 12″ 200 Watt Full-Range Professional Woofer Driver 8 Ohm||
impressive looking unit. looks first rate. I wish you would have added a few more pictures with more detail ,though I understand that can be easier said than done.