by Red Rock Sound
5.0 / 5     (3 votes)
Win32 Win64 OSX
HLF-3C is a 12 dB per octave low and high cut filters plugin, 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-3C 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-3C hardware. The RRS HLF-3C 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 cutoff frequency of the low cut filter. Eleven frequencies are available: 50, 80, 100, 150, 250, 500, 750, 1000, 1500 and 2000 CPS;
  • High Cut — This rotary switch specifies the cutoff frequency of the high cut filter. Eleven frequencies are available: 1.5, 2, 3, 4, 5, 6, 8, 10, 12 and 15 KCS.
Devon Jul 31 2023
Jul 31 2023
Wish you could add low cut at 40Hz.
John Burns May 06 2023
May 06 2023
Windows defender says no. C'mon guys, how hard is it to just give us the .dll?
DrakuLaura Jan 04 2023
(5 / 5)
Jan 04 2023
This filter is incredible! I am using it for my home audio library via freeware OcenAudio audio editor. The filter perfectly corrects "loudness war" songs (for example, bass-boosted r'n'b with clicky hi-hats), making them sound in human way.
Fresh spider2x0 Sep 07 2022
(5 / 5)
Sep 07 2022
So clean, fire plugin
Grannitus Sep 07 2022
(5 / 5)
Sep 07 2022
Sehr brauchbar - wie auch die anderen free plugins.... Danke