Edward J M
Senior HTF Member
- Joined
- Sep 22, 2002
- Messages
- 2,031
Hi John:
The boxes and tubes should sound almost identical if they have the same hardware, internal volume, tune point, vent size, etc.
This assumes of course the box is adequately braced and stiff and will not flex under pressure. Seeing as the PB1-ISD weighs a stout 70+ pounds, I doubt that would be an issue.
Craig reported his new PB2+ sounded better than his dual 25-31PC+, but that was probably due to incremental improvements to the latest generation Plus driver than any inherent advantage the box holds over the cylinder (or vice versa).
The 20-39PCi is tuned a bit deeper (20 Hz) than the PB1-ISD (22 Hz), and should have a bit better low end extension.
The "22-31PCi" (essentially a 25-31PCi with a 15" 22 Hz-tuned port) would probably be the closest cylinder match to the PB1-ISD.
The cylinder does present some challenges from a measurement and mic placement standpoint that the box does not, but that can always be worked around.
Ed
The boxes and tubes should sound almost identical if they have the same hardware, internal volume, tune point, vent size, etc.
This assumes of course the box is adequately braced and stiff and will not flex under pressure. Seeing as the PB1-ISD weighs a stout 70+ pounds, I doubt that would be an issue.
Craig reported his new PB2+ sounded better than his dual 25-31PC+, but that was probably due to incremental improvements to the latest generation Plus driver than any inherent advantage the box holds over the cylinder (or vice versa).
The 20-39PCi is tuned a bit deeper (20 Hz) than the PB1-ISD (22 Hz), and should have a bit better low end extension.
The "22-31PCi" (essentially a 25-31PCi with a 15" 22 Hz-tuned port) would probably be the closest cylinder match to the PB1-ISD.
The cylinder does present some challenges from a measurement and mic placement standpoint that the box does not, but that can always be worked around.
Ed