The Echo Fix EF-X3R is a rack-mounted tape echo that puts three effects in one chassis: a real tape delay, an analog BBD chorus, and an analog spring reverb. Echo Fix describes the result as a 100% analog signal path, with no digital conversion anywhere in the chain1. It builds on the company's earlier EF-X2 Tape Echo, which Echo Fix had been making for three years before the EF-X3R arrived1.
Where the EF-X2 carried its reverb and chorus in DSP, with a blend setting that let you mix DSP reverb with the real spring, the EF-X3R moves the chorus and reverb fully into the analog domain21. For a player, that means the whole unit, echo, chorus and reverb together, stays in the analog world.
What it does
The EF-X3R is a multi-function unit. The tape echo section provides the repeats, the BBD chorus adds analog modulation, and the spring reverb gives real spring tank character rather than a digital emulation. Echo Fix's own description of the echo section points at how it behaves at the extremes: turn up the echo volume and feedback, and the unit self-oscillates1.
"Turn up the echo volume, dial in some feedback and watch as our unit self-oscillates into life and becomes an instrument more than an effect."
That self-oscillation behavior is characteristic of tape echoes generally: at high feedback settings the repeats build on themselves and can be played like a sound source of their own.
Head modes
The tape echo has three playback heads, and a mode switch selects which ones are active. There are seven head mode settings in total, plus a separate Sound On Sound (SOS) head that can be switched on over the top of any mode, or used on its own1.
| Mode | Heads used |
|---|---|
| Mode 1 | Head 1 |
| Mode 2 | Head 2 |
| Mode 3 | Head 3 |
| Mode 4 | Head 1 + 2 |
| Mode 5 | Head 2 + 3 |
| Mode 6 | Head 1 + 3 |
| SOS | Sound On Sound head, over any mode or independently |
The combined modes (4, 5 and 6) give two repeats per cycle at different intervals, which is how multi-head tape echoes create their characteristic rhythmic patterns. The same mode layout carries across the whole EF-X3R family, including the Vintage Voice versions34.
Stereo ping-pong from a mono source
The EF-X3R provides direct playback head outputs. Because each head's signal is available separately, you can pan the heads externally, left and right, to create stereo ping-pong delays starting from a mono source1. The panning happens outside the unit, through a mixer or panning device, but the head outputs are what make it possible.
Power and connections
The EF-X3R ships with a worldwide-compatible 100 to 240V power supply, so no step-down transformer or other voltage conversion is needed anywhere in the world1. Echo Fix also covers tariff and custom charges for USA customers via its express courier, with the checkout price all inclusive1. This matches the EF-X2, which shipped with the same worldwide supply2.
For US buyers specifically, Echo Fix states that tariff and customs charges are covered via its express courier, so the checkout price is all-inclusive for USA customers1. Buyers elsewhere should note that units ship from Australia and import duties and fees are the buyer's responsibility3.
Built on the EF-X2
Echo Fix positions the EF-X3R as building on the momentum and trust gained after three years of making the EF-X21. The EF-X2, announced in 2019, packed four core functions into one unit: tape echo, real spring reverb, DSP reverb and chorus, and a preamp25. The EF-X3R keeps the tape echo and spring reverb concept but replaces the DSP chorus with an analog BBD chorus, which is what gets it to a fully analog signal path.
Versions: Vintage Voice
The EF-X3R family includes two lines. The standard EF-X3R comes with a Silver or Black front panel1. Alongside it there is the EF-X3R Vintage Voice, built on the same platform but voiced differently: it uses new-spec vintage-voiced tape heads and different electronics to capture the warmth and character of classic tape echo machines4.
| EF-X3R | EF-X3R Vintage Voice | |
|---|---|---|
| Platform | EF-X3R | Same EF-X3R platform4 |
| Voicing | Standard | Vintage-voiced repeats, new tape heads4 |
| Front panels | Silver or Black1 | Blue or Gold3 |
| Signal path | 100% analog1 | 100% analog4 |
| Rack size | 3RU sliding drawer1 | 3RU sliding drawer4 |
The Vintage Voice Gold version adds balanced input and output at the rear, a useful difference for studio or pro rig integration3. Its delay time runs from 56ms to 1755ms3. Both Vintage Voice versions share the same head mode layout and worldwide power supply as the standard unit34.
Videos
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Questions
Is the Echo Fix EF-X3R fully analog?
Yes. Echo Fix states the EF-X3R has a 100% analog signal path, with the chorus handled by an analog BBD circuit and the reverb by an analog spring reverb rather than digital processing. The same claim is made for the Vintage Voice versions of the unit.
How many rack spaces does the EF-X3R take?
The EF-X3R takes 3RU in a standard 19 inch rack. It is built into a steel sliding rackmount drawer, which slides out to make tape replacement easier. It weighs 12 kg, so a sturdy rack case is worth having.
Can the EF-X3R do ping-pong delay from a mono source?
Yes, with external help. The unit has direct playback head outputs, so you can pan the individual heads externally to create stereo ping-pong delays starting from a mono source. The panning itself happens outside the unit, through your mixer or panning gear.
What is the difference between the EF-X3R and the EF-X3R Vintage Voice?
The Vintage Voice is built on the same EF-X3R platform but is voiced differently, using new-spec vintage-voiced tape heads and different electronics to capture the warmth and character of classic tape echo machines. It comes in Blue or Gold front panels, where the standard EF-X3R comes in Silver or Black.
Where is the Echo Fix EF-X3R made?
Echo Fix builds the EF-X3R in Australia. Units ship from Australia, and for customers outside the United States, import duties and fees are the responsibility of the buyer. For USA customers, Echo Fix covers tariff and customs charges via its express courier.
Does the EF-X3R work on 120V US power?
Yes. The EF-X3R comes with a worldwide-compatible 100 to 240V power supply, so no step-down transformer or other voltage conversion is needed. It works on US 120V mains as well as European and Australian voltages.
Sources (5)
- EF-X3R (Rack Mounted), Echo Fix
- Echo Fix EF-X2 Tape Echo, Pedal of the Day, 2020-11-17
- EF-X3R Vintage Voice Gold (Rack Mounted) PRE-SALE, Echo Fix
- EF-X3R Vintage Voice Blue (Rack Mounted) PRE-SALE, Echo Fix
- Echo Fix’s EF-X2 might be the next evolution in tape echo units, Guitar.com, 2019-04-10








