Audiority Chief Flanger [WiN]

• Product: Chief Flanger
• Developer: Audiority
• Version: 1.0.1
• Format: VST3, AAX, CLAP
• Requirements: Windows 7 or later
• Source: audiority.com/shop/chief-flanger

Chief Flanger is a BBD analog flanger emulation modeled on two related circuit variants — the Boss BF-2 Flanger and the Boss HF-2 Hi-Band Flanger — accessible via a single mode switch. Both circuits share the same four controls (Manual, Depth, Rate, Resonance), with the HF-2’s character defined by a different BBD chip that halves the number of delay stages, pushing the modulated frequency content approximately one octave higher and producing a narrower, less metallic sweep. A Trimmers section exposes the internal calibration controls that on the hardware units are accessible only by opening the pedal: maximum depth, rate, and feedback ranges, plus minimum and maximum BBD clock speed. Chief Flanger sits at the insert stage for any source requiring vintage bucket-brigade flanger character with hardware-accurate trimmer access and a pre-emphasized dry blend path. At $29, it covers both BF-2 and HF-2 territory without requiring separate plugin purchases.

Key Takeaway

Chief Flanger addresses one specific production problem — vintage BBD flanger character with full trimmer control — and does not expand beyond it. The dual-mode architecture covers the two most documented iterations of the same hardware circuit, not a range of distinct flanger topologies. Producers who need pitch-shifted feedback flanging, tape flanger simulation, or through-zero flanging will find none of those here. The Spread control adds stereo width via LFO phase offset but carries no effect on mono tracks; AAX support makes it Pro Tools-ready without additional format compromise.

Classic and Hi-Band — Circuit Split

The BF-2 and HF-2 share the same fundamental BBD flanger topology — manual-controlled center point, modulated delay line, resonance feedback loop — with one critical hardware difference: the BBD chip. The BF-2 uses the MN3207, a 1,024-stage device that produces a wider, fuller delay range. The HF-2 uses the MN3204, a 512-stage chip that runs the same clock speed across half the stages, effectively shifting the characteristic delay frequency upward by an octave. The result on hardware is a flanger that sweeps across a higher spectral range — less metallic in the low-mid body, more present in the upper harmonics, with feedback that reads as sweeter rather than aggressive.

In Chief Flanger, switching to Hi-Band mode activates the HF-2 circuit model without changing any of the four main controls. The same Manual, Depth, Rate, and Resonance positions produce a noticeably different character — where Classic flanges through the full frequency body of a signal, Hi-Band concentrates its sweep in the upper registers. On guitar, the distinction is immediate: Classic produces the recognizable jet-plane effect that dominates the low-mids; Hi-Band produces a more refined movement that sits above the fundamental without overwhelming it. On synth pads, Hi-Band sweeps the harmonic overtones while leaving the root content relatively stable.

Neither mode allows independent access to both circuits simultaneously within one instance. A production approach that blends BF-2 and HF-2 character requires two instances of Chief Flanger in parallel, one per mode. The plugin does not provide a blend control between the two circuit characters internally.

Trimmers — Internal Calibration Access

On the original hardware units, three internal trimmers control the maximum modulation ranges and the BBD clock speed. These are set at the factory, adjusted occasionally for unit-to-unit calibration variation, and otherwise inaccessible without physical disassembly. Chief Flanger surfaces all five trimmer controls on the interface.

Max Depth, Max Rate, and Max Fbk each set the upper limit of their respective main controls. Reducing Max Depth compresses the available sweep range — the Depth knob from minimum to maximum now spans a narrower modulation range, concentrating variation across a smaller spread of delay time. Reducing Max Rate limits how fast the LFO can travel at its maximum position, keeping even aggressive Rate settings within a calmer range. Max Fbk sets the feedback ceiling, determining how far Resonance can push toward self-oscillation before the circuit clips or feeds back uncontrollably.

Clock Min and Clock Max adjust the BBD clock’s operating range, which governs the delay time the chip produces across its modulation sweep. Raising Clock Min pushes the lowest available delay time higher, shortening the sweep’s bass-end range. Lowering Clock Max extends the sweep toward longer delay times, producing comb filtering that begins to approach short chorus or ensemble territory at extreme settings. The clock range interacts directly with Manual position — Manual sets the center point of the sweep within whatever range the Clock Min/Max trimmers define, so trimmer changes alter what Manual positions are meaningful in a given session.

This is the section that separates Chief Flanger from most BF-2 emulations. Access to clock range adjustment at the plugin interface level is uncommon. Most hardware-modeled flangers expose only the primary controls of the pedal, leaving the trimmer behavior fixed at factory calibration. Engineers who understand what BBD clock speed does sonically can calibrate Chief Flanger to a specific sweep character that diverges from the factory setting — tighter and more chorus-like at compressed clock ranges, or wider and more extreme toward the lower end. Producers unfamiliar with how BBD clock speed relates to perceived sweep character will need time with the trimmers before their influence reads as intuitive.

Pre-Emphasis Blend Path

The Blend control on Chief Flanger mixes the unmodulated signal with the modulated output — but the dry signal in this path is pre-emphasized, not flat. Pre-emphasis is a frequency weighting applied to the dry signal before it enters the blend, matching a characteristic of the original hardware circuit where the dry path ran through a high-frequency boost stage. This means that increasing Blend does not add a flat, neutral dry signal alongside the wet flanged output. It adds a high-frequency-weighted dry signal, producing a blend that tilts the combined output toward the upper spectrum as Blend increases.

In practice, moderate Blend settings on guitar produce a sound that retains the flanger sweep while recovering the pick attack and string definition that heavy flanging tends to smooth over. The pre-emphasis coloration in the dry path contributes an airiness to the combined signal that a flat parallel dry blend does not produce. On sources with significant high-frequency content — acoustic guitar, bright synths, hi-hats — Blend at high values brightens the mix noticeably. On bass-heavy or dark sources, the effect is less apparent because the pre-emphasis lifts frequencies that may already be reduced.

Blend is not a standard wet/dry control. Engineers expecting it to reduce the overall flanger intensity while keeping the dry signal tonally neutral will get a different result at higher settings. Wet-only processing — flanger without any dry signal — requires Blend at minimum. Parallel blend with frequency-neutral dry signal requires an external mix approach, routing Chief Flanger as a send effect alongside the dry channel.

Stereo Spread — LFO Phase Offset

The Spread control introduces a phase offset between the left and right channel LFOs. When Spread is at zero, both channels modulate in unison — the same delay time change happens simultaneously on both sides, producing a mono-compatible flanging effect that sums without cancellation. As Spread increases, the right channel LFO drifts progressively out of phase with the left, so when the left channel is at its maximum delay time, the right is approaching its minimum, and vice versa. The stereo field widens as the two channels inhabit different points in the sweep cycle at any given moment.

At maximum Spread, the two channels run in near-opposition. The stereo image expands significantly, and the comb filtering pattern shifts location across the frequency spectrum between left and right. This is perceptually distinct from post-processing stereo widening applied to a mono flanger signal — the modulation itself is stereo-encoded rather than spatially enhanced after the fact. On headphones or wide monitoring, maximum Spread produces an enveloping sweep that distributes across the listening field rather than originating from a fixed center point.

Spread carries no effect on mono tracks. The phase offset requires independent left and right channel signals to produce any change — on a mono-to-stereo insert, the v1.0.1 update corrected a bug where Spread previously malfunctioned on mono-to-stereo tracks. The fix is confirmed in the changelog. Engineers working in mono production contexts, mono-compatible mix checking, or mono broadcast delivery should evaluate Spread behavior carefully at the session stage where it is used.

Chief Flanger — Buyer Boundary

Chief Flanger is a focused BF-2 / HF-2 emulation. Its operational range begins and ends at vintage bucket-brigade flanger character — the specific sonic territory of those two Boss pedals, extended by trimmer access that the hardware does not offer at the interface level. Nothing in the plugin addresses through-zero flanging, tape-style flanging with irregular speed, multi-voice flanger architectures, or modulation shapes beyond the sine-wave LFO the BF-2 and HF-2 circuits used.

Engineers working primarily in stereo production with sources that benefit from BBD flanger — electric guitar, bass, synth leads, drum room, drum bus — will find the dual-mode architecture eliminates the need to own two separate emulation plugins for the same hardware family. The $29 price at current discount, combined with CLAP, VST3, AU, and AAX format coverage across Windows and macOS, removes format and budget friction from the evaluation decision entirely.

The plugin is three months into its release lifecycle at v1.0.1. Two bugs from the original release — Spread resetting on transport restart and Spread malfunction on mono-to-stereo tracks — are resolved. No additional feature additions or behavioral changes are documented beyond these fixes. Engineers carrying session templates built on Chief Flanger at v1.0 should verify Spread behavior after updating, as the fix changes how Spread responds on mono-to-stereo tracks.

Producers who need a broader modulation platform — multiple LFO waveforms, through-zero capability, feedback tone shaping, or simultaneous dual-circuit blend — should look at deeper modulation plugins before committing here. Chief Flanger’s constraint is also its coherence: it does not attempt to be more than two variants of one specific hardware circuit, with the trimmer access that makes the emulation configurable rather than fixed.

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