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HLF-RE PASSIVE HIGH/LOW FILTER v1.0.0
HLF-RE PASSIVE HIGH/LOW FILTER
Reason Studios Shop

We are glad to present our anniversary plug-in. For 10 years we have been delighting you with professional plugins at an affordable price. Thank you for support!

Red Rock Sound HLF-RE completes the Passive EQ Collection (rEQP-1A and reMEQ-5). This plug-in has 12 dB per octave low and high cut filters, providing broad retro-tonal sculpting or bygone-era special effects, without the inconvenience of insertion loss found with the unamplified passive hardware. 

You can easily subtract the unnecessary frequencies in any instrument and sub-group so they stay wonderfully musical in the mix.

The original HLF-RE hardware unit is a true passive design: there are no input/output amplifiers and it does not require any external power. As a result, there is an inherent loss of signal level when using the HLF-RE hardware. The RRS HLF-RE plug-in compensates for this inherent signal loss for simplified use in the modern era; it has unity gain upon insertion (there is no insertion loss until one or both of the cut filters is engaged).

The HLF-3C interface is very simple and includes only three controls:

  • In — this toggle switch is the plug-in bypass control. When in the down position (bypassed), plug-in processing is disabled altogether. The plug-in is engaged with the switch is in the up position. This switch can be used to compare the processed settings to that of the original signal;
  • Low Cut — this rotary switch specifies the cut-off frequency of the low-cut filter. Ten frequencies are available: 50, 80, 100, 150, 250, 500, 750, 1000, 1500 and 2000 CPS;
  • High Cut — this rotary switch specifies the cut-off frequency of the high-cut filter. Ten frequencies are available: 1.5, 2, 3, 4, 5, 6, 8, 10, 12 and 15 KCS.