• AGM Electron Echo

Magazine Archive

Home -> Magazines -> Issues -> Articles in this issue -> View

AGM Electron Echo



It may be called an Electron Echo but I could find no cyclotrons or other sub-atomic particle accelerators inside so I must conclude that conventional BBD techniques are used.

For your money you get a mains powered analogue echo unit that has one high and one low impedance input, both of which have independent volume controls enabling simple level mixing to be carried out.

The echo effect may be engaged by means of a front panel switch or an optional footswitch and both treble and bass controls are incorporated to equalise the output. The echo section itself has the usual controls for delay time, repeat and echo level, the maximum delay being around 100 milliseconds.

Constructionally, the unit is virtually identical to the mixer so I'll skip all that and get on to the exciting bit where we plug it in.

In Use



The first thing you notice after having been spoilt by expensive digital delays is the relatively short echo time.

This is even shorter than many analogue units and is not really suitable for the production of Hank Marvin type echo (does anyone still do that?), but it is useful for enhancing vocals or generating ADT effects.

The echo level control adds echo to the dry signal but there appears to be no way of obtaining an 'echo only' output, although you can get the echo to sound louder than the dry sound.

In terms of noise, the circuitry performs reasonably well, certainly for the price, and the frequency response, though not stated, seems to be as good as other budget analogue echo units.

The repeat control sets the number of echo repeats and it is possible to generate positive feedback by over use of this control which causes the sound to build up into a roar or squeal, depending on the delay setting.

Conclusions



It must be borne in mind that this is a particularly inexpensive delay unit and its main limitation is the short delay time available.

On the plus side, it is mains powered, so no battery problems, and it does incorporate mixing facilities and EQ.

I'm sure that it will find a place in home recording set-ups and live situations where it is probably best suited to vocal enhancement or ADT effects; still at £70 or less, it has a lot to offer.

AGM products are distributed in the UK by GC Music. (Contact Details).



Previous Article in this issue

AGM Six Channel Mic Mixer

Next article in this issue

Lexicon PCM60 Digital Reverberator


Home & Studio Recording - Copyright: Music Maker Publications (UK), Future Publishing.

 

Home & Studio Recording - Nov 1984

Donated & scanned by: Mike Gorman

>

Should be left alone:


You can send us a note about this article, or let us know of a problem - select the type from the menu above.

(Please include your email address if you want to be contacted regarding your note.)

Gear in this article:

Studio FX > AGM > Electron Echo

Review by Paul White

Previous article in this issue:

> AGM Six Channel Mic Mixer

Next article in this issue:

> Lexicon PCM60 Digital Reverb...


> Back to Issue contents


Quick Poll


Help Support The Things You Love

mu:zines is the result of thousands of hours of effort, and will require many thousands more going forward to reach our goals of getting all this content online.

If you value this resource, you can support this project - it really helps!

If you're enjoying the site, please consider supporting me to help build this archive...

...with a one time Donation, or a recurring Donation of just £1 or £2 a month. It really helps - thank you!
muzines_logo_02

Small Print

Terms of usePrivacy