DIGITECH DSP 128 MANUAL PDF

Digitech DSP Pdf User Manuals. View online or download Digitech DSP Owner’s Manual. Digitech DSP Plus, Music Technology, May The manual claims the abbreviations are printed on the top of the unit – but they weren’t on the review. Digitech DSP Plus, Sound On Sound, Apr There’s no indication in the DSP Plus manual of just how the signal is routed from one effects section .

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Interestingly, a large number of the programs seemed especially suitable for guitar – lots of slapback echo and reverb.

SOUNDING OFF Running through the factory programs, the unit sounds very good, though there’s not actually a huge variety of effects on offer – my initial impressions were of an mxnual number of variations on fairly straightforward reverb and delay combinations.

All programming functions on the unit are carried out with the cursor and parameter buttons, and the four-digit LED display provides modest visual feedback.

Digitech DSP Plus (SOS Apr 89)

Having created an environment of the right size, the next aspect of the reverb effect you might choose to change is the position of the listener relative to the sound source, using the Early Reflection Level and Nanual Reflection Level parameters. Next door to the display are four cursor keys which are used to access the programs and change the parameters.

It seems that at each stage of the effects chain, where a level for any section is set, what is actually being specified is a mix balance between the signal at the input and output of that section: Large room, Delay, Chorus, Filter 2.

The three reverb programs – small, medium and large rooms – offer maximum reverb decay times of 1. The Delay simply delays the start of that part of the reverb sound by up to 80 milliseconds, and it is best to set the Early Delay parameter to a lower value digietch the Subsequent Delay parameter to produce a natural effect. One algorithm is dedicated to a nine-band graphic but with no effects. The manual gives some details, although a few more pages and a little tutorial section would not go amiss.

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Setting the Early Reflection Level higher than the Subsequent Reflection Level will create the impression of proximity to the source; reversing the situation will create an impression of distance.

DIGITECH DSP-128 Owner’s Manual

Reverse Reverb, Delay, Filter Like other diitech in this price bracket, the Plus has a bit analogue-to-digital converter. In the multi-effects processor wars, Digitech’s DSP Plus distinguishes itself with comprehensive facilities and little sound colouration.

Extremely useful for live work. Further parameters determine the characteristics of both the early and subsequent parts of the reverb, with pre Delay and Diffusion parameters available for both. It really helps – thank you!

As you can see, reverb isn’t just a question of bouncing the sound around a large tiled bathroom. At the time this generated a good deal of excitement, but since other manufacturers quickly went one better with signal processors that can produce four effects simultaneously, the DSP didn’t look quite so hot anymore.

Unlike so many other units, however, the case is brushed aluminium not matt black – a refreshing change. One thing to be said about all multi-effects processors is that even a couple of years ago, finding such processing power in one unit and at such a price was all but unthinkable. Parametric EQ, Chorus, Delay The next two algorithms offer stereo multi-tap delay combined with EQ and either chorus or flange, and the rest offer such delights as reverse and gated reverb, parametric and graphic EQ, and the immodestly titled Ultimate Reverb.

Digitech DSP Plus (MT May 89)

With distinctive effects like this, it’s very easy to grow tired of them quickly if they sound identical every time you use them. In a live situation, it’s possible that the DSP would hang up. Its quoted frequency response is 20Hz to 20kHz with a signal-to-noise ratio of around 85dB. In the light of these rapid advances in technology, what have the boys at DigiTech come up with? Four cursor and parameter manuall, located next to a four-digit LED display, are provided for editing and selecting effects programs from the front panel.

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However, after delving deep into the facilities of the machine, its own character and unique features became apparent, demonstrating that it is without doubt a worthy addition to the growing range of affordable professional effects processors.

Please Contribute to mu: I found that a good deal of tweaking was often required with this algorithm to remove or minimise unexpected background ringing, and simply to find the best balance of Diffusion and Delay parameters.

All programs contain factory presets which use the above algorithms. Is one better or more desirable than the other? The manual supplied with the review unit was a temporary manual. fsp

DigiTech DSP 128 Plus Digital Signal Processor Vintage Rack

Review by Paul Ireson. Providing manuals and documentation for 10 years!

The flange, on the other hand, has a good deal more bite: The first six algorithms are the only ones that use all four effects sections, providing various combinations of EQ and mono delay up to milliseconds with chorus or flange, and small, medium or large room reverb treatments.

Its strengths are good multi-tap delays, an excellent dedicated reverb algorithm, and realtime MIDI control over effects parameters a feature shared with the Quadraverb.

Tone them down a little for a honky tonk piano and use just a touch for a warm chorus or a subtle flange.