Modified 620 cabs for Altec 605B

Quote:

---

Originally Posted by Alien_Shore

WW, your friend will undoubtedly be pleased!
What volume did you choose for those cabinets? Did you go with 9 CF like the 620? Where is the tuning ending up? Are those 5" ducts?

---

They are 9cf. Still tuning them. Trying both the markwart crossovers and some home grown before adjusting the port lengths. I hope to dial them in between 30 and 35Hz.