Aguilar Filter Twin V2

A Next-Generation Envelope Filter: Two Curves, One Musical Intent

Envelope filters (often called "auto-wah") marked the golden age of funk and soul, with that sensation of a filter that "speaks" following your right-hand attack. The Filter Twin takes this vintage DNA but pushes it further with an original approach: two synchronized filters moving in opposite directions. The result: you instantly get the characteristic 1970s accents while accessing wider and more melodic frequency movements, difficult to achieve with a single filter pedal.

Who Is the Filter Twin For, and In Which Styles Does It Make a Difference?

The Filter Twin is aimed at guitarists (and more broadly any instrument plugged into a 6.35mm Jack) who want an expressive, dynamic effect directly linked to their playing. It's perfect for funk rhythms, neo-soul, disco, pop, electric blues, and any parts where the attack needs to "pop" without drowning the sound. In live settings, it brings immediate groove and can be quickly dialed in before a set; in the studio, its dual filter allows for sculpting very musical mix placements, balancing controlled brightness and articulated lows.

It suits both intermediate musicians (thanks to its clear interface) and advanced players who like to fine-tune the envelope response based on pickup output level, pick type, or pickup selector position.

Controls and Operation: Four Settings to Manage Two Filters

The Filter Twin's ergonomics go straight to the point: you shape the filter's behavior without menus or sub-functions. The Threshold setting determines trigger sensitivity: low to respond to the slightest touch (light playing, single coils, arpeggios), higher to prevent a strong attack from keeping the filter open constantly (humbuckers, strong attacks, compressor upstream). The two controls Velocity Hi and Velocity Low adjust the movement intensity of each filter: you can emphasize the bite of the highs, keep the lows tamer, or conversely make the low end "pump" for huge groove.

Finally, the Blend adjusts the mix between the two filters. This is the key to the pedal's personality: the more intelligently you mix the two directions, the more you get a complex frequency movement, both singing and precise, with a sense of depth especially felt on hammer-ons, double-stops, and syncopated riffs.

The Sound

The Filter Twin stands out for a very organic response to attack: it doesn't just "add" an effect, it transforms your articulation. The character is distinctive and expressive, with a vocal side that can range from tight funk "quack" to wider, almost synthetic sweeps, depending on sensitivity and blend. The dual filter provides a fuller spectrum sensation: notes keep their body while the top opens and closes, avoiding the too thin or too nasal effect some envelope filters can produce. It reacts particularly well to dynamic variations: lower the guitar volume or play softer for subtle movements, attack harder for more marked and percussive accents.

Technical specifications

Effects	Envelope / Auto-wah, Bass Dual Filter Envelope	True bypass	Yes
Technology	Analog	EQ	Filter
Format	Pedal	Use	universal, guitar
Inputs	Instrument jack	Color	Blue
Outputs	Jack amp	Power supply included	No

Two identical filters acting in opposite directions	high-frequency filter and low-frequency filter	Output	6.35mm Jack
Input	6.35mm Jack	Required power supply	9 V