Germany • Austria Switzerland • BeNeLux
To amplify
a very low audio signal is a complicated matter. Basically there are two different philosphies about it: as neutral as possible amplification or a characteristic sound shaping of the signal. This is a crucial decision before any further processing of the audio signal, because once done the result is not reversible.
Microphones
The output signal of a microphone has very low level, but it's electrically balanced. Thus a transmission over longer distances is possible without major problems - if the input stage of the preamp is designed accordingly. Important parameters are here the maximum "gain" factor, the "input impedance" and the "common mode rejection ratio" (CMRR). Only if all these electrical parameters are considered properly the result is satisfactory.
Instruments
Passive coil pickups of guitars and basses emit a low signal only, their source impedance is very high and the signal routing to the receiver is unbalanced. Accordingly, the signal responds sensitively to external influences and disturbances. Every detail must be observed, for example good quality of cables. When connecting the instrument to an amplifier, we recommend the very high-quality cable "Platinum" by MOGAMI. For the preamp applies: Preferably a high impedance of the input and a noise-free amplification. Two attributes that exclude each other normally and can only be achieved with an extremely "clean" design of the input stage. In particular, older electric instruments will benefit from an optimal adaption and prove so their true audio potential again.
Extensive listening tests in the development are at first place, then the optimization of the electronics follows. It also means to go unusual ways and as a result exspecially for TRUE Systems: a sophisticated circuit design with improved power supply (±24V) for extended headroom, lots of handselected electronic components and special features that are found in this combination anywhere else.
These include the gain range up to +76 dB, a higher input impedance of 5.5 KOhms for microphone- and 2.5 MOhms for instrument-inputs.
Among other things, the feature list includes also, a Dual-output, a Correlation indicator, a M/S decoder or a Dual-level display with hold function on the P8i.
Here is an excerpt from the customer list:
Berklee School of Music, Lincoln Center, Crystal Cathedral, MGM Grand Hotel, Real World Studios, Sony Music Studios, Skywalker Studios, Warner Bros. and many of the major fim and TV studios. The TRUE Systems range is also very popular both in the studio and for live recordings with many artistes including:Bruce Springsteen, Coldplay, Dave Matthews Band, David Benoit, Death Cab for Cutie, Dido, Elvis Costello, Herbie Hancock, Jack Johnson, Jackson Browne, Joe Jackson, Los Lobos, Nancy Wilson, Paula Cole, Red Hot Chili Peppers, Rick Springfield, Rippingtons, Robben Ford, Sarah McLachlan, Stealy Dan, Tom Petty, Van Morrison, Wayne Shorter Quartett, The White Stripes, Zakk Wylde ...
The current catalog is available here
