Bose Portable PA Knowledge

Template:Bass Line Out Model II Post Firmware 1.4: Difference between revisions

Newer edit →
ST (talk | contribs)
Bureaucrats, Interface administrators, Administrators
20,076 edits
VisualWikitext
m New page: == Bass Line Out and B1 behavior == {{{panelImage|Model II Bass Outputs}}} </includeonly> The behavior of the bass line out and B1 Bass Module outputs on ...
 
Line 1: Line 1:
== Bass Line Out and B1 behavior ==
== Bass Line Out: Model II post firmware 1.4 with System EQ 1.04 ==
{{{panelImage|[[Image:ModelIIBassOutputs.png|Model II Bass Outputs]]}}}
{{{panelImage|[[Image:ModelIIBassOutputs.png|Model II Bass Outputs]]}}}
</includeonly>
</includeonly>


The behavior of the bass line out and B1 Bass Module outputs on the {{Classic}} / {{Model I}} / {{Model II}} are based on the philosophy that adding {{B1}}s should give the user more dynamic range (can play louder) but should not alter the tone of the instrument, including tone adjustments made using the {{R1}}, the {{T1}} or other tone-shaping equipment.
September 2012
 
Bose released Model II Power Stand [[L1%C2%AE_Model_II_Power_Stand_Firmware_Updates#Version_1.4|Model II firmware 1.4 with System EQ 1.04]] to support the [[B2]]. This supports [[B1]]s in the same way, and it introduced new support for the {{B2}} with the three position Bass Level Switch.
The behavior of the bass line out with the {{B2}} Bass Module outputs on the [[Model 1S]] and [[Model II]] are based on the philosophy that adding {{B2}}s should give the user more bass output immediately. This changes the tonal balance as soon as you add a second B2 using an {{A1}} connected to the Bass Line Out.


This philosophy is notably different from other manufacturers, who take the approach that it's okay (or desirable) that adding more bass speakers causes the instrument tone to become "bassier".


With this philosophy in mind, here is how the bass line out and B1 outputs work.
With this philosophy in mind, here is how the bass line out and B1 outputs work.
Line 12: Line 15:
<table class="b1">
<table class="b1">
<tr>
<tr>
<th>B1s connected</th>
<th>B2 connected</th>
<th>Output</th><th>EQ</th>
<th>Output</th><th>EQ</th>
<th>Bass Signal Gain</th>
<th>Bass Signal Gain</th>
Line 19: Line 22:
<tr>
<tr>
<td style="text-align:center;" >1</td>
<td style="text-align:center;" >1</td>
<td>40Hz-{{{Crossover|180}}}Hz</td>
<td>40Hz-200Hz</td>
<td>B1 specific EQ</td>
<td>B2 specific EQ</td>
<td>Reference Level</td>
<td>Reference Level</td>
<td>
<td>
Line 26: Line 29:
<tr>
<tr>
<td style="text-align:center;">2</td>
<td style="text-align:center;">2</td>
<td class="b1">40Hz-{{{Crossover|180}}}Hz</td>
<td class="b1">40Hz-200Hz</td>
<td class="b1">B1 specific EQ</td>
<td class="b1">B2 specific EQ</td>
<td class="b1">Reference Level -6 dB</td>
<td class="b1">Reference Level</td>
<td>Why? Because when you add a second B1, if you did not change the signal strength you would get 6 dB more bass relative to the mids and highs. This would alter the tone of the instrument. To keep the tone the same, while still allowing the more dynamic range (system can play louder by 6 dB) the signal level must be reduced by 6 dB.
<td>Unlike the {{B1}} if you add a B2, you get more output immediately.
</td>
</td>
</tr>
</tr>
Line 38: Line 41:
<table class="b1">
<table class="b1">
<tr>
<tr>
<th>B1s connected</th>
<th>Bass Modules connected</th>
<th>Output</th><th>EQ</th>
<th>Output</th><th>EQ</th>
<th>Bass Signal Gain</th>
<th>Bass Signal Gain</th>
Line 45: Line 48:
<tr>
<tr>
<td style="text-align:center;">0</td>
<td style="text-align:center;">0</td>
<td>40Hz-{{{Crossover|180}}}Hz</td>
<td>40Hz-200Hz</td>
<td>Flat EQ</td>
<td>B2 EQ</td>
<td>Reference Level -6 dB</td>
<td>&nbsp;</td>
<td></td>
<td></td>
</tr>
</tr>
Line 53: Line 56:
<tr>
<tr>
<td style="text-align:center;">1</td>
<td style="text-align:center;">1</td>
<td>40Hz-{{{Crossover|180}}}Hz</td>
<td>40Hz-200Hz</td>
<td>B1 specific EQ on Bass Line Out and B1 Out</td>
<td>B2 specific EQ on Bass Line Out and Bass Module Out</td>
<td>Reference Level - 6 dB</td>
<td>Reference Level </td>
<td>If you are using  a {{A1 EB}} this is a total of 3 B1s (2 on the A1 and 1 on the Power Stand) </td>
<td>If you are using  a {{A1 EB}} this is a total of 2 B2s (1 on the A1 and 1 on the Power Stand) </td>
</tr>
<tr>
<td style="text-align:center;">2</td>
<td>40Hz-{{{Crossover|180}}}Hz</td>
<td>B1 specific EQ on Bass Line Out and B1 Out</td>
<td>Reference Level -12 dB</td>
<td>If you are using  a {{A1 EB}} this is a total of 4 B1s (2 on the A1 and 2 on the Power Stand) </td>


</tr>
</tr>
</table>
</table>
=== With More Than 4 B1s ===
The Power Stand does not measure the exact number of {{A1}}s, 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 heavy.
Retrieved from "https://boseperformer.com/Template:Bass_Line_Out_Model_II_Post_Firmware_1.4"