Designed for the DJ booth but also popular for studio applications, Action Filter 4 consists of a highpass/lowpass filter combination per stereo channel. Together, these work as either bandpass or notch filters with variable bandwidth and individual resonance per filter. A front panel MODE switch changes the filter routing for either BAND or NOTCH behaviors.
The first Action Filter used a slightly 'raw' sounding circuit. Vermona optimized the sound in the next revision, which led to a 'smoother' sound. Turns out some users preferred the rawer-, some the softer-sounding Action Filter revisions. Fortunately, Vermona found a way to make everyone happy: Action Filter 4 has a front panel switch to choose between ROUGH (Action Filter 1) or the rounder-sounding SMOOTH filter.
Action Filter 4's optical bypass circuit can be engaged via a front panel switch or triggered via a momentary front panel button, allowing for 'transformer' style rhythmic effects. Rounding out the controls is a gain knob to adjust the input level.
Besides its obvious utility in a DJ booth, Action Filter 4 can also be used in the studio to process full songs or add that 'certain something' to individual audio tracks. Emphasize or kill specific frequency bands and have lots of fun actively playing with frequencies!
- Two stereo channels, each with analog 24dB/octave highpass and lowpass filters
- Highpass and lowpass filters can be used together for bandpass or notch filtering
- Controls for cutoff and resonance per filter
- MODE switch to toggle between BAND or NOTCH serial/parallel filter routing
- STYLE switch to toggle between ROUGH or SMOOTH filter circuits
- 1/4" and RCA inputs/outputs
- Bypass function allows for creation of rhythmic filter effects
- Custom tailored optical bypass trigger
- International switching power supply
|Included From Manufacturer||
|Product Unique Features||
Switchable 'rough' or 'smooth' filter styles
Front panel bypass switch for rhythmic effects
|Effects||Lowpass/highpass filters work together in series or parallel for either bandpass or notch modes|
|Audio Inputs|| Stereo RCA
Stereo 1/4" TS
|Audio Outputs|| Stereo RCA
Stereo 1/4" TS
|Number of Pedal Switches|
|Power Adaptor||International switching power supply|
|Product Weight||±6.5 lbs.|
|Height||1 rack unit|
Vermona Limited Warranty
The manufacturer warrants this product to be free of defects in material and/or workmanship for a period of one (1) year from the date of purchase.
The manufacturer's warranty does not apply to products that have been damaged due to and/or subjected to improper handling by shipping companies (forwarders), negligence, accidents, improper use or alteration not authorized by the manufacturer.
This warranty is in lieu of and excludes all other warranties, expressed or implied. The manufacturer will not be liable for incidental or consequential loss or damage whatsoever, whether based upon allegations or negligence, breach of warranty, or otherwise. This disclaimer of incidental or consequential damages includes, but is not limited to, property damages, loss of profits, loss of time or other losses or inconvenient resulting from any defect in the material or workmanship of this product or any other connection with the purchase, operation or use of this product.