Spaceman Effects Meridian

The Spaceman Effects Meridian is an all-analog modulation pedal built around a 1024-stage bucket brigade delay line, with a delay range of 0.8ms to 50ms¹. Spaceman calls it a "versatile, analog modulation juggernaut": not just a chorus pedal, but also a flanger, vibrato, double-tracker, rotary speaker emulator and phaser, with comb filtering and double-tracking available when the modulation is switched off¹. Delicious Audio described it as an analog short delay circuit showcasing the MN3007 bucket brigade chip, and quoted the builder calling it their most flexible and sophisticated modulation effect to date².

The pedal is hand-wired and built in Portland, Oregon, in a cast-aluminum enclosure with a durable, engraved vinyl faceplate and a jewel indicator light¹. As of October 2026 the maker's page lists it as sold out¹.

How it works: one delay line, many effects

Bucket brigade delay (BBD) chips pass your signal along a chain of capacitors a step at a time, which delays it slightly. Modulating that delay time with an LFO is what creates chorus, flanger and vibrato sounds: short delay times with feedback give flanging and phasing, longer times give chorus and pitch-shifting vibrato. The Meridian's 0.8ms to 50ms range spans that whole territory, and Delicious Audio notes it can produce classic chorus tones, true pitch-shifting vibrato, wispy phasing and more from the same circuit².

The LFO offers three waveshapes: Sine, Triangle and Flux². Flux is the unusual one.

Delicious Audio adds that when used subtly, the Flux shape imparts a slithering, "alive" feeling².

The controls

The Meridian carries external LEVEL, MIX, RATE, WIDTH, TIME and REGEN controls, plus an internal switch for expression control. Here is what each does, from the maker's and press descriptions¹²:

Premier Guitar's reviewer noted that mix, volume, rate and width are pretty standard controls, but that the volume control adds up to 6 dB of boost to overcome perceived volume loss³.

Two behaviors are worth knowing as a player:

• WIDTH at minimum stops the LFO. RATE and TIME then directly sweep the delay line, so you can dial in static comb filtering, double-tracking or pseudo slapback sounds manually¹. Pedal of the Day describes this the same way: with Width at minimum the LFO is bypassed and the delay line is swept directly⁴.
• REGEN is essential for flanger and phaser sounds. It introduces negative feedback around the delay line, producing the metallic clank of comb filtering at short delay times and a drippy, rhythmic grind at longer delay times¹².

Expression and CV control

The EXP jack accepts both expression pedals and control voltage, and an internal slide switch selects whether the jack controls the RATE or WIDTH parameter¹⁴. The jack is a 0-5V DC TRS type with over-voltage and reverse-voltage protection¹. Delicious Audio also lists CV/EXP options for controlling rate, width or delay time².

Power and specifications

The Meridian runs on 9V DC, negative center, through a 2.1mm jack, drawing 32mA in bypass and 58mA engaged¹. Input resistance is 1 meg ohm¹.

What reviewers said

Pedal of the Day reviewed the Meridian in June 2023 and found it blends aspects of chorus, vibrato, flanger, filter and pitch-shifting into one pedal⁴:

Premier Guitar's September 2023 review noted that Spaceman Effects has always maintained high standards for construction quality, inside and out³. Spaceman itself pitches the Meridian at players tired of noisy, brittle modulation pedals, promising a clear and articulate tone with the analog warmth BBDs are known for¹.

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