SPL Track One 2058 Manual
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SPL Track One 2058 Manual

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All manuals and user guides at all-guides.com
Manual
Model 2058
Channel Strip

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Summary of Contents for SPL Track One 2058

  • Page 1 All manuals and user guides at all-guides.com Manual Model 2058 Channel Strip...
  • Page 2 Changes without notice. This document is the property of SPL and may not be copied or repro- duced in any manner, in part or full without the authorization of SPL.

  • Page 3: Table Of Contents

    All manuals and user guides at all-guides.com Content Introduction ....................4 Principles ....................4 Hookup/Security advices ................5 Connections Rear panel/wiring ..................6 General advices, connectors & switches ............ 7 Control Elements • Preamplifer stage Microphone Gain, Line/Instrument, 48 Volt phantom power ...... 9 Highpass, on levelling ................

  • Page 4: Introduction

    With Track One SPL have produced a complete channel strip which for the greater part is based on the processing concepts already successfully realized in other products. The very complex task of a channel strip profits particu- larly from the innovative techniques that have always allowed the operation of SPL equipment to be efficient and objective.

  • Page 5: Hookup/Security Advices

    This leads, in the truest sense of the word ”clean”, to considerably improved tonal quality. The scatter free toroidal transformer, manufactured to SPL tolerances, supplies the equipment with the necessary voltages and forms the basis for a clean electrical supply to all parts of the circuitry.

  • Page 6: Connections Rear Panel/Wiring

    All manuals and user guides at all-guides.com Connections Rear Panel/Wiring...

  • Page 7: General Advices, Connectors & Switches

    All manuals and user guides at all-guides.com Connections General Advices Again, while Channel One’s housing is EMV-proof and protects against HF-interference, placement of the unit is very important since it amplifies microphone signals as well as other unwanted signals. Before connecting the Channel One or any other equipment turn off all power.
  • Page 8 All manuals and user guides at all-guides.com Connections Connectors & Switches A/D Input 2 AD INPUT 2 This connector serves to feed a further signal to the optional AD converter. Two different signals can be converted at the same time. The maximum input level should not exceed +12dBu to avoid clipping of the converter (+12dBu (with converter only) represents the digital full scale level, 0 dBfs).

  • Page 9: Control Elements

    All manuals and user guides at all-guides.com Control Elements Preamplifi er Stage Microphone Gain The Microphone Gain control determines the preamplification of the micro- phone signal. The preamplification values extend up to + 65 dB. If Lundahl input transformers are fitted the scale values are to be increased by + 14 dB. Please refer to „About levelling“...

  • Page 10: Preamplifer Stage

    All manuals and user guides at all-guides.com Control Elements Preamplifer Stage Highpass The Highpass filter is used to eliminate disturbing low frequencies. These disturbances could impair the following processing or AD conversion. The cut-off frequency at 50 Hz avoids influences to vocals. The roll-off is 12 dB/octave.

  • Page 11: Technical Information Regarding The De-Esser

    All manuals and user guides at all-guides.com Control Elements De-Esser Technical information regarding the De-Esser In contrast to common de-essers that influence a frequency band of about 2 octaves with compressor techniques the Auto-Dynamic De-Esser utilizes filters that process only the reducible ”S-frequencies” but do not interfere with the remainder of the spectrum.

  • Page 12: Compression, Make-Up, Technical Information Regarding The Compressor

    All manuals and user guides at all-guides.com Control Elements Compressor/Limiter is particularly undesirable for live recording – a „destroyed“ signal must be recorded again, but a clean signal can still be processed, if for example further compression/limiting is needed. Compression The Compression control sets the intensity of compression.

  • Page 13: Equalizer

    All manuals and user guides at all-guides.com Control Elements Compressor/Limiter Even the control of the release time is dependent on the input signal. Fast and large level fluctuations are correspondingly processed with shorter time constants than minor fluctuations in order to limit the distortion of the audio signal as far as possible.

  • Page 14: Mid-Hi Band, Cut/Boost (Mid-Hi), Air Band, Recommendations

    All manuals and user guides at all-guides.com Control Elements Equalizer Mid-Hi Band The center frequency of the semi-parametric mid high frequency filter is set with the Mid-Hi Band control. The frequency range can be set between 650 Hz and 13.7 kHz so that this filter covers a range of 4.5 octaves and can be equally employed in the lower mid as well as the high range.

  • Page 15: Output/Display Output

    All manuals and user guides at all-guides.com Control Elements Output/Display Output The outgoing signal can either be dampened to –20 dB or further amplified by +6 dB with the Output control to provide optimal drive to the subsequent units or the optional AD converter. The individually selected output level is shown on the PPM-Output display in the display field.

  • Page 16: Display: Ppm-Output, Gain Reduction

    All manuals and user guides at all-guides.com Control Elements Output/Display Display: PPM Output The PPM Output display shows the peak reading of the output level (cali- brated to 0 dB) and is present at the analog outputs on the rear of the unit. This display also serves to the pre-amplifying Gain.

  • Page 17: Specifications

    All manuals and user guides at all-guides.com Specifi cations Microphone Input Frequency response: 10 Hz-200 kHz (200 kHz = -3 dB) Common mode rejection: 1 kHz: -80 dB / 10 kHz: -68 dB (at -20 dBu) THD & N Amplifi cation: A-weighted: 20 dB -97,5 dBu...

  • Page 18: Measurements

    All manuals and user guides at all-guides.com Measurements Compressor/Limiter, Low Band Diagram 1 portrays the characteristics compressor and limiter Line A displays the relation between input and output Line B shows the curve characteristics of the com- pressor Line C protrays the limiter‘s curve characteristics Diagram 2 shows the curves of the Low Band filter...
  • Page 19 All manuals and user guides at all-guides.com Measurements Mid-Hi Band, Air Band Diagram 3 displays various cut and boost settings of the Mid-Hi filter at around 1,8 kHz Diagram 4 portrays various cut and boost settings of the Air Band filter...

  • Page 20: Warranty

    It is possible that economic loss or injury to person or property may result from the failure of the product; however, even if SPL has been advised of this possibility, this limited warranty does not cover any such consequential or incidental damages.

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