The T-Rex Play Back is a delay pedal from Danish maker T-Rex, announced by the company as "the ultimate delay pedal". T-Rex describes it as delivering "an amazing analog sound at any setting" with a "gorgeous, tubey warmth", and it carries a tap tempo switch for matching delay speed to song tempo on stage1. It sits in the maker's delay line alongside pedals like the T-Rex Replica, T-Rex Reptile 2 and T-Rex Replay Box, and belongs to the broader family covered on the Delay Pedals page.
Controls
The Play Back keeps its panel short: four knobs and two footswitches1.
| Control | What it does |
|---|---|
| On/off | Engages or bypasses the effect |
| Tap tempo | Sets delay speed by tapping with your foot, for matching song tempo on stage |
| Time | Delay time |
| Feedback | Number of repeats |
| Delay | Overall delay level |
| Bite | Tone character of the repeats |
T-Rex explains the tap tempo switch as "the ability to control the tempo of your delay by tapping a button with your foot while you play", which is the practical difference between this pedal and simpler delays where the time knob is the only way to set speed1.
Power and battery
The Play Back runs on 9V DC and draws 85 mA at 9V DC. T-Rex names its own FuelTank supply line as the power source, and the pedal also accepts a 9V 6F22 battery through the same external connectors: input jack, output jack and 9V DC jack1.
Battery life is listed at 30 to 60 minutes1. For a rehearsal or a gig, the 9V DC jack is the realistic way to power it, and the 85 mA draw is worth keeping in mind when budgeting a shared supply.
Specifications
| Specification | Value |
|---|---|
| Input impedance @ 1 kHz | Higher than 1M Ohm |
| Output impedance @ 1 kHz | Lower than 1K Ohm |
| Maximum input signal | 3V p-p |
| Size incl. knobs (W x H x D) | 100 x 55 x 120 mm / 3,9 x 2,2 x 4,7 inch |
| Weight excl. packaging | 0,335 kg / 11,8 oz |
The high input impedance, above 1M Ohm, means the pedal sits comfortably after a guitar with passive pickups without loading the signal, and the 3V p-p maximum input signal is the ceiling for how hot a signal the input accepts1.
Videos
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Questions
Does the T-Rex Play Back have tap tempo?
Yes. The Play Back has a dedicated tap tempo switch, which T-Rex describes as the ability to control the tempo of your delay by tapping a button with your foot while you play. It sits alongside the on/off footswitch and the Bite, Delay, Feedback and Time controls, so you can match the delay speed to a song's tempo on stage without bending down to the knobs.
Is the T-Rex Play Back true bypass?
Yes. T-Rex specifies True Bypass switching for the Play Back, so when the pedal is off, your guitar's signal passes straight through without passing through the delay circuit.
How long does a battery last in the T-Rex Play Back?
T-Rex lists battery life at 30 to 60 minutes. That is short by pedal standards, so for anything beyond occasional use the 9V DC power jack is the practical option.
How much current does the T-Rex Play Back draw?
The Play Back draws 85 mA at 9V DC, according to T-Rex's product page. That is enough that a low-output daisy-chain supply may not be comfortable powering it alongside other pedals.
Is the T-Rex Play Back analog?
T-Rex describes the Play Back as delivering an amazing analog sound at any setting, with a gorgeous, tubey warmth. The maker's product page is the source for that description.
Sources (1)
- → T-REX EFFECTS ← Pedals for guitar and bass players!, T-Rex Effects









