PedalBro

Reverb · Source Audio

Source Audio True Spring

A stereo digital reverb pedal that models spring tank behavior with three distinct algorithms and includes built-in tremolo effects. The pedal offers MIDI control and expression input for real-time parameter adjustment.

  • 9V DC · center −
  • 165 mA
  • Switchable (true or buffered)
  • Digital
  • Stereo
  • MIDI
New
from $239
Used (asking)
from $175

The rundown

Highlights

  • Three spring tank algorithms plus three tremolo modes
  • Stereo input and output
  • MIDI and expression pedal compatible
  • Switchable bypass with spillover capability
  • Runs on standard 9V DC power

Best for

Players seeking digital spring reverb with tremolo modulation and stereo capabilities who want hands-on control via expression pedal or MIDI integration.

Quick facts

Power
9V DC
Current draw
165 mA
Polarity
Center negative
Bypass
Switchable (true or buffered)
Dimensions
73.2 × 114.3 mm
Stereo
Yes
MIDI
Yes
Expression input
Yes
Status
In production

Where to buy Source Audio True Spring

$239 lowest new price · Reverb

Used listings asking $175–$293.14, median $261.23 (4 listings, small sample). Asking prices, not sold prices.

Current offers
SellerConditionPriceLink
ReverbUsed$175View
ReverbNew$239View
ReverbNew$239View
ReverbNew$239View
ReverbNew$239View
ReverbNew$239View
ReverbNew$239View
ReverbNew$239View
ReverbNew$239View
ReverbNew$239View

Prices last checked 22 hours ago. Links to sellers are affiliate links.

Frequently asked questions

What power does the True Spring require?

The Source Audio True Spring runs on 9V DC at 165 mA with center-negative polarity.

Does it support stereo?

Yes, the True Spring has stereo input and output capabilities.

Can I control it with a MIDI controller?

Yes, the True Spring includes MIDI connectivity.

What are the dimensions?

The True Spring measures 73.2 x 114.3 mm.

Similar pedals

Same type, similar features.

Specs from pedalfilter. Summary written by PedalBro from those specs and public descriptions.

Page last updated September 29, 2026.