Al
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« Reply #13 on: June 17, 2010, 01:50:28 PM »
I guess it's worth mentioning that the OCL-2 has a 15Hz S/C filter internally so any external rolloffs are in addition to this.
DC
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« Reply #14 on: June 18, 2010, 06:26:55 AM »
| dcollins wrote on Thu, 17 June 2010 13:50 |
I guess it's worth mentioning that the OCL-2 has a 15Hz S/C filter internally so any external rolloffs are in addition to this.
DC
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Wouldn't that mean that the quality of the s/c-hp filter becomes 2nd order (when using the Blackwood mod - or even swappable TRS connectors with caps soldered on, for those s/c inserts)? If so, then perhaps the Buzz would object less to the notion of the efficacy of selectable low end corner frequencies for the side chain. Andrew
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« Reply #15 on: June 18, 2010, 07:22:02 AM »
| Andrew Hamilton wrote on Fri, 18 June 2010 13:26 |
Wouldn't that mean that the quality of the s/c-hp filter becomes 2nd order
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If the added cutoff was also 15Hz. I'd think that around 50-75Hz it'd look like some sort of a shelving response with rolloff. Above that it starts at 6dB/oct and towards lower frequencies it approaches 12dB/oct. All guessing.
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« Reply #16 on: June 18, 2010, 01:51:16 PM »
| Viitalahde wrote on Fri, 18 June 2010 04:22 |
If the added cutoff was also 15Hz. I'd think that around 50-75Hz it'd look like some sort of a shelving response with rolloff. Above that it starts at 6dB/oct and towards lower frequencies it approaches 12dB/oct. All guessing.
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I'll have to look at the schematic again, I think it's 12dB/oct at around 15Hz. DC
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« Reply #17 on: June 19, 2010, 02:26:25 AM »
So, you're saying that the existing 15 Hz s/c hpfs are not in series with the side chain filters? ...are buffered in some way from the inserts, but the filtering is still cumulative - just not to the point of affecting the order of the cascaded networks?
Andrew
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« Reply #18 on: June 19, 2010, 12:53:27 PM »
| Andrew Hamilton wrote on Fri, 18 June 2010 23:26 |
So, you're saying that the existing 15 Hz s/c hpfs are not in series with the side chain filters? ...are buffered in some way from the inserts, but the filtering is still cumulative - just not to the point of affecting the order of the cascaded networks?
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There is a side-chain filter built in the OCL-2. Any external networks are in addition to this. DC
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« Reply #19 on: June 21, 2010, 08:32:20 AM »
If the on-board s/c filter is not buffered from the side chain insert (TRS) filters one might apply, I wondered if that meant it would result in a single, sharper filter, or if that nascent network is buffered from the TRS ports and, as Viitalahde wrote, therefore the resultant s/c filtering would be in two, different, but concurrent slopes (of non compression).... Thanks, Andrew P.S., this is the "net" action I was wondering about possibly going on...  Also, if you have a step on your s/c switch that is open, rather than through a cap or jumper, then the audio will only be passed through the compressor with make-up gain, but no compression... could be a convenient step for comparisons...
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« Reply #20 on: June 21, 2010, 12:53:53 PM »
| Andrew Hamilton wrote on Mon, 21 June 2010 05:32 |
If the on-board s/c filter is not buffered from the side chain insert (TRS) filters one might apply, I wondered if that meant it would result in a single, sharper filter, or if that nascent network is buffered from the TRS ports and, as Viitalahde wrote, therefore the resultant s/c filtering would be in two, different, but concurrent
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The internal filter is buffered. DC
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« Reply #21 on: June 27, 2010, 12:01:24 AM »
15 Hz only? ( for free) 
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