Bass shy? Um.... No. They have plenty of bass output. It's just that they don't go real deep into the bass region. 40-45hz is just about it. I had a pair of the home versions of the A-7. Large squatty cabs with walnut finish (846-B). I loved those speakers. That was about 45 years ago. There's a pair on Audiogon right now I believe that are selling just south of $3000.
A company out there called Great Plains Audio makes and sells vintage drivers for all the older Altec's with compression drivers. They sell the woofers also. Probably not cheap, but you know the drivers will work properly if you buy from them.
A company out there called Great Plains Audio makes and sells vintage drivers for all the older Altec's with compression drivers. They sell the woofers also. Probably not cheap, but you know the drivers will work properly if you buy from them.