Difference between revisions of "PS1 Power Stand / Bass Line Out"

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== Bass Line Out and B1 behavior ==
 
== Bass Line Out and B1 behavior ==
Hilmar-at-Bose<ref>[http://bose.infopop.cc/eve/forums/a/tpc/f/3976055944/m/6121039062/r/2641067362#2641067362 original discussion - A1 PackLite Questions and More Bass Talk]</ref>.
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Hilmar-at-Bose<ref>Hilmar-at-Bose [http://bose.infopop.cc/eve/forums/a/tpc/f/3976055944/m/6121039062/r/2641067362#2641067362 A1 PackLite Questions and More Bass Talk]</ref>.
 
This is based on the design goal that “You should always sound the same; no matter how much Bass stuff is attached” I can try to explain my view of why this is a good design goal (of which you may disagree) but let’s look at the actual behavior first.
 
This is based on the design goal that “You should always sound the same; no matter how much Bass stuff is attached” I can try to explain my view of why this is a good design goal (of which you may disagree) but let’s look at the actual behavior first.
  
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=== With More Than 4 B1s ===
 
=== With More Than 4 B1s ===
A little more insight. <ref>Hilmar-at-Bose [http://bose.infopop.cc/eve/forums/a/tpc/f/3976055944/m/9641017814?r=4081020914#4081020914 Third Party Subwoofer Discussion on the Bose Community Message Boards]</ref>
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A little more insight. <ref>Hilmar-at-Bose [http://bose.infopop.cc/eve/forums/a/tpc/f/3976055944/m/9641017814?r=4081020914#4081020914 Third Party Subwoofers]</ref>
 
We actually can't measure the exact number of Packlites, so there is a slight error if you use anything but 1,2, or 4 B1s. For 6 B1s you will be 3.5 dB bass heavy, for 8 B1s it'll be 6 dB.
 
We actually can't measure the exact number of Packlites, so there is a slight error if you use anything but 1,2, or 4 B1s. For 6 B1s you will be 3.5 dB bass heavy, for 8 B1s it'll be 6 dB.
 
However, these are rare cases, and if you go through the trouble to hook up 8 B1s, I guess you are actually looking for something more bass heavy.
 
However, these are rare cases, and if you go through the trouble to hook up 8 B1s, I guess you are actually looking for something more bass heavy.

Revision as of 22:43, 23 December 2006

Bass Line Out and B1 behavior

Hilmar-at-Bose[1]. This is based on the design goal that “You should always sound the same; no matter how much Bass stuff is attached” I can try to explain my view of why this is a good design goal (of which you may disagree) but let’s look at the actual behavior first.

Without Bass Line out

  • 1xB1: 40Hz-180Hz, B1 specific EQ, some nominal gain that we call 0dB
  • 2xB1: 40Hz-180Hz, B1 specific EQ, -6dB as compared to nominal

With Bass Line Out

  • 0xB1: 40-180 Hz, flat, roughly the same gain as 2 B1
  • 1xB1: 40Hz-180Hz, B1 specific EQ, -6dB as compared to nominal
  • 2xB1: 40Hz-180Hz, B1 specific EQ, -12dB as compared to nominal

What this complex behavior does is the following. No matter if you attach 1, 2, or 4 B1s, you will get pretty much the same balance between all combined B1s and the L1s. It’s a little off for 3, 5, 6, 7 & 8 B1s, but still reasonably close.

With More Than 4 B1s

A little more insight. [2] We actually can't measure the exact number of Packlites, so there is a slight error if you use anything but 1,2, or 4 B1s. For 6 B1s you will be 3.5 dB bass heavy, for 8 B1s it'll be 6 dB. However, these are rare cases, and if you go through the trouble to hook up 8 B1s, I guess you are actually looking for something more bass heavy.

Don't ask how I know.