G Lab SD-1 Smooth Delay

Effects pedal

  • Smooth delay / classic delay
  • Two ranges of delay TIME setting: From 50 ms to 640 ms and from 100 ms to 1280 ms
  • True bypass
  • Controls for feedback, bass, treble, time and level
  • Switch for effect and tap tempo
  • On the side controls for input gain - Effect level
  • Connections: In and out jack, control out, MIDI in and thru, 9V DC 0.1A
No JavaScript? No Audio Samples! :-(

Audio Examples

  • Clavinet
  • Delay
  • Rotary

Further Information

Analogico No
Delay Time 1280 ms
tap feature Yes
Battery Operation No
PSU included No
16 Customer Ratings:
  • 5
  • 4
  • 3
  • 2
  • 1
4.5 / 5.0
  • handling
  • features
  • sound
  • quality
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A treasure in secret - secret tip?
ReinhardF, 28.08.2013
It took me some time to get the G Lab SD-1 and its capabilities. Somehow, the device seems to be living a certain wallflower existence alongside the Strymons, the Flashback or the Deep Blue Delay and the T-Rex Replica. In the meantime, I can say - wrongly.

So far I have mainly used an old 80s boss-DM2 analogue delay, which I had thoroughly refurbished a few years ago with very high quality components, which not only improved the effect quality, but also the bypass, yes - As with many Boss devices (and not just those), the signal noticeably affected.

What I was looking for was:
A delay, that
1. Provide the old DM-2 sound that fits so perfectly and unobtrusively into the guitar sound - especially on sol with overdrive.
2. offers longer delay times than the DM-2.
3. has a tap-tempo feature
4. has a tone control that makes the character of the effect signal within wide ranges precisely adjustable.
5. Also allows more modern sounds such as Andy Summers (Police) or the Edge (U2).
6. Last but not least: Transparent bypass and no attenuation / discoloration of the original signal.

The last point is for me a killer criterion and I'm so picky in this regard, that at least 80% of all devices (including the high-priced) turn out for me from the outset.

The G Lab SD-1 Smooth Delay last but not least convinced me in this respect. The signal is neither attenuated nor discolored in the clean sound or in the overdrive. It only adds the effect and you can set precisely with the tone control in very wide areas.
There is a treble and an additional bass control, as well as a Wahschalter, with which one can adjust the effective range of the two regulators.
... and it works: With a high level reduction, medium bass reduction and the smooth switch you get exactly the old sound of the DM-2 and that also with longer delay times and with tap tempo. So you can put the delay precisely on the eighth or fourth of the song and the post goes off in a solo.

If you add a little more treble, you will get perfect Mark Knopfler sounds (if the right guitar is included) as well.

With more treble and bass, you will come more and more into the more up-to-date area and into areas where the delay is used as a distinct, foreground effect. The sound character of the Smooth Delay, however, always remains beautiful in the "organic, natural" area and is - in my experience - not sterile or cool, as it was criticized in another review.

Other very good features are
- The precise adjustability of the input level, which allows the use in high-level (more than 4 dB line-level) effect paths or behind overdrive pedals with very high output.
- the lighting of the controls and the rubberized top of the two main controls, which you can therefore rotate with your foot.
- the MIDI function, which is currently of no importance to me.

What you do not get are modulation and gang eggs (-flutter, aging etc.) effects.

The workmanship makes a very, very solid impression and given the features and sound quality, the price is justified.

Compared to the Strymons the power consumption of just under 100 mA is very moderate, which saves me the purchase of a new power supply. Compared to the El Capistan I find the G-Lab SD-1 uncomplicated in the operation (no secondary functions of the keys) and more flexible in the EQ. For my taste, it sounds more natural / inconspicuous than the El Capistan. Of course you can see it differently, if you do not use a delay as a sound refinement, but as a superficial effect. Compared to the Deep Blue Delay, the G-Lab SD 1 is much more flexible, has tap-tempo and longer delay times.

CONCLUSION: The G-Lab SD 1 meets all of my above requirements. If you do not need modulation and bandaging, -flutter effects and therefore value very, very good signal and effect quality with effective sound control, the SD-1 should be at the top of the list.

PS: After I had seen the G Lab 1 while researching on the WEB but then had initially deleted from my shortlist, I came back by a telephone consultation by a Thomann employee again as an alternative to him. Thanks again for the hint - otherwise I would have neglected my new "darling" probably on the edge.

Addendum: Meanwhile, I have an effect line with line level (+ 4dB) built into my amp and use the SD-1 there. Not only does it sound better, but it also fits better in terms of level, as it is designed for high levels (up to + 8dB) and thus can process significantly more levels than the vast majority of delay effect devices.
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Professional Delay with anal character
Héctor B., 19.01.2013
The first impression of this pedal since you take it out of the box is very positive. It is built like a tank. Good quality of the switches, very robust, and it is a very good idea to put that "gum" on top of the feedback potentiometers and time to be able to change them with your foot and not have to bend over.

The character of this pedal is 100% analog. It has a bass and treble equalizer to control the equalization of repetitions. You also have the option of controlling the speed of the repetitions by means of a potentiometer that has clearly marked the time divisions or with the tap tempo.

The tap tempo works very well, what you step on is what it sounds like. It does not do weird things. You have the option to configure tap knocks to 1/1, 1/2 and 1/3.

Another very interesting option that is called "off mode" that allows you to turn off the pedal and keep the repeats (soft) or turn it off and cut all dry (hard).

No doubt by the sonidazo that takes out the pedal, the gain control input that has, midi connection, and the different switches to adjust the sound of the requisiticiones make this a perfect pedal for lovers of analog sound.
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€221 £197.27
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The price in GBP is a guideline price only!

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Offers include 20% UK VAT and are valid only whilst stocks last. Delivery to the UK costs 10 EUR (approx. £9), free shipping on orders above 149 EUR. Please click here for more on international delivery costs and times. We do not accept liability for typographical errors or inaccurate information of any kind. *RRP = manufacturer's / distributor's recommended retail price in Germany
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