Related Manuals for Safe Sound Audio P501
Summary of Contents for Safe Sound Audio P501
- Page 1 P501 Audio Processor User Manual Safe Sound Audio P501 Audio Processor User Manual Safe Sound Audio, UK...
- Page 2 P501 Audio Processor User Manual Page 2 P501 Audio Processor Features 500 Series Fully compatible with the API™ 500 Series modular format which allows a number of audio modules to be plugged into rack frames such as the API™ 6-slot Lunchbox and 10-slot 500VPR rack frame.
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Page 3: Table Of Contents
P501 Audio Processor User Manual Page 3 Contents Page P501 Audio Processor Features 500 Series Compatibility Installation Detailed Operation Guide Input Stage High Pass Filter Peakride Compressor Peakride Compressor Design Theory Limiter Output Gain and Level Metering Technical Specification Warranty... -
Page 4: 500 Series Compatibility
User Manual Page 4 500 Series Compatibility The P501 Audio Processor is intended for use within an API™ 500 Series compatible rack frame from which is takes its power and audio connections. It cannot function as a stand-a-lone unit. Information about the API™... -
Page 5: Detailed Operation Guide
P501 Audio Processor User Manual Page 5 Detailed operational guide... -
Page 6: Input Stage
Unbalanced instrument input, for direct injection of most electric or bass guitars. This is sometimes called the DI-INPUT (direct injection). Connect via the ¼” jack (9) on the front of the P501 module. Switch number (7) selected to ‘instr’. All three input types have different gain ranges available within the P501 to suit the type of source, all controlled from a single gain control (2). -
Page 7: Peakride Compressor
The compressor threshold is the level point in dB above which the audio gain will be reduced. On the P501 this can be varied from 0dB to -40dB using the T/HOLD control (12). The ratio control (4) varies the degree of gain reduction which is applied, from 1:1 (no effect) to ... -
Page 8: Peakride Compressor Design Theory
Because compression is a gain reduction tool, it will tend to lower the maximum audio level through the audio chain. Make-up gain is used to replace this ‘lost’ level and in the case of the P501 this is done automatically; the amount of make-up gain applied being related to the threshold and ratio setting. - Page 9 P501 Audio Processor User Manual Page 9 Notice that the pure tone audio signal is beginning to lose its smooth top and bottom curves and begins to resemble a triangular waveform. This is not just an issue for bass guitar and bass drum compression.
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Page 10: Limiter
Limiter The P501 includes a switchable audio limiter which can be used to prevent digital clipping in your recording chain. The limiter is sited in the audio signal path immediately before the output level control and operates at fixed threshold of +6dBu (nominal). -
Page 11: Output Gain And Level Metering
XLR in the rack frame. The most common use of the output gain control is to match the peak output level of the P501 to the peak input level of your recording device. Once you have done this level matching it’s usually not necessary to alter the output gain control during recording. - Page 12 P501 Audio Processor User Manual Page 12 Fusing : On board ‘auto reset’ polyfuses protecting the ±16V and +48V rails Main processor audio path Frequency response : -0.5dB points at 5Hz and 60kHz Distortion : < 0.01% at 1kHz (typically 0.008%) main...
- Page 13 P501 Audio Processor User Manual Page 13 Output Noise : -93dBu RMS unweighted, measured 22Hz to 22kHz -95dBu RMS A-weighted, measured 22Hz to 22kHz Input Gain Ranges Microphone input : 0dB to +72dB Line input : -10dB to +20dB Instrument input :...
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Page 14: Warranty
This warranty is not transferable and applies only to the original purchaser of the unit. If the unit should become faulty, then contact Safe Sound Audio or your local distributor for a Returns Authorisation Number. No items will be accepted for warranty repair without this authorisation number. -
Page 15: How To Contact Us
LS18 4AG Callers strictly by appointment By telephone : +44 (0)7866 574 522 By e-mail : info@safesoundaudio.com On the web : www.safesoundaudio.com Safe Sound Audio reserves the right to make changes and improvements to the design of this product without notice. - Page 16 P501 Audio Processor User Manual Page 16 © Safe Sound Audio 2009...
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