Brand

Tech 21

In the current JustPedals catalogue, Tech 21 is represented by Preamp & DI Pedals, Multi-Effects Pedals and Bass Effects Pedals. Current listings include MIDI Mouse, SansAmp GT2 and SansAmp PSA 2.0. That makes the range relevant to players looking for modulation and movement, plus modelling, direct rigs and multi-effects. Check each model for its exact circuit or processing platform, controls, power requirements and connections, particularly where the catalogue includes both pedals and supporting gear.

Category

Specialist Effects Pedals

Specialist effects alter the signal in ways that do not sit cleanly inside one established family. They may use granular processing, frequency shifting, resonators, freeze or sustain, bit reduction, ring modulation, feedback networks or combinations of several techniques. The relevant distinction is the underlying process, its tracking or latency, and how completely the dry signal can be blended or replaced.

Tags

Analogue

Analogue products use continuous audio circuitry for some or all of the signal path, so clipping, filtering or modulation arises from physical components rather than sampled algorithms. The label does not guarantee a particular tone; component choice, headroom, bias, noise and the surrounding gain stages still matter. Check whether the switching, presets, control section or cabinet stage is digital when the exact signal path is important.

Bass

Bass products are designed or voiced to retain low-frequency information and usable headroom with bass guitar or other low-register sources. Controls may centre on clean blend, low-end EQ, compression, crossover points or drive character. A guitar pedal can sometimes work well on bass, but it may remove the fundamental or compress the transient. Check the frequency response, input impedance, output level and dry-signal path with the intended tuning and amplifier.

Digital

Digital products use conversion and processing to create, store or control the effect. This can provide presets, complex routing, repeatable algorithms, USB, MIDI and firmware features, but conversion, latency, power requirements and clocking depend on the design. Check the input and output levels, sample or impulse-response support, bypass behaviour and current draw when combining a digital unit with analogue pedals or a direct recording setup.

MIDI

MIDI sends, receives or responds to Musical Instrument Digital Interface messages rather than carrying instrument audio itself. Program changes can recall presets, continuous controllers can move parameters and MIDI clock or transport messages can synchronise timing. Check the connector or USB method, channel and message support, clock direction, latency and whether the device needs a separate MIDI host or adapter. MIDI control is powerful, but compatibility depends on the exact messages each product understands.

Presets

Preset-capable products can store and recall effect settings, signal paths or control assignments. The useful differences are the number of locations, whether footswitches or MIDI can recall them, what parameters are saved, how quickly they change and whether trails continue between settings. Check editing, backup, firmware, expression and USB requirements, and confirm that the preset system covers the parameters you need rather than assuming every control is recalled.