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Old April 5th, 2013, 4:45 PM
Zhillsguy Zhillsguy is offline
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Older VTF-3 Amplifier Questions

My first piece of Hsu hardware......I acquired an older VTF-3 amplifier in great condition. I assume this is a very old version, since it has a very "sensitive" volume knob. It appears to work correctly, I did a quick test on a driver I had laying around. It is quite a little beast. I did a little reading here, but couldn't find definitive answers, so I have a couple of questions:
  1. Does the amp have an adjustable/switchable HPF that the 20/25 Hz switch controls?
  2. If I were to build a ported sub, does the amp have an HPF around 20 Hz (or any)? How should the new box be tuned (Fb) for driver protection?
Thank you......
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Last edited by Zhillsguy : April 7th, 2013 at 6:18 AM.
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Old April 8th, 2013, 7:53 PM
Zhillsguy Zhillsguy is offline
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This is the answer received directly from the Hsu team via email:

Yes, there is a HPF associated with the 20/25 Hz switch positions. You can either have a 20 or 25 Hz tuned cabinet and use the respective switch position. Note that there are specific EQ built-in to the amp for the VTF-3 sub, that may not match your driver/enclosure, but you should still get a decent result.

Thanks goes to tech support for answering quickly (over the weekend even)!
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