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Proel DSO480
digital processor, for touring and fixed applications
eur: info@proelgroup.com
Replacing the recently discontinued DSO26 in the Proel Touring catalogue, the new DSO480 features a 96 kHz sampling rate and a 4-input and 8-output configuration.
More than a simple crossover filter for the frequency separation, the DSO480 includes advanced equalization filters (configurable as full-parametric, shelving, notch, band-pass, all-pass), a complete dynamic speaker protection system and delay lines for the time alignment of the different speakers of a systems or of different system in distributed installations.
All of the functions can be easily edited by means of an ergonomic back-lit control interface and a 2 x 24 character display panel.
The onboard library can also be constantly kept updated via RS232 with a user friendly software.
• 4 inputs and 8 outputs – native processing now runs at 96 kHz resulting in wider bandwidth (over 30 kHz).
• Flexible routing matrix , in addition to standard fixed configurations such as 4 x 2 way, any output may be fed from any input or the sum of inputs. Edit buttons show routing instantly when pressed.
• 9 full bandwidth parametric bands available on every output, all switchable in high and low shelving responses.
• 8 bands of fully parametric EQ on each input channel.
• crossover filters on each output now offer 48 dB/Octave responses.
• New higher order crossover responses in the style of “NTM” or “Hardman” filters, with crossover responses above 72 dB/Octave.
• “Extended EQ Pack”, in addition to the standard EQ responses (PEQ/Shelving) EQ band may be changed to offer a variety of responses, from notch filters and bandpass filter, to phase (all pass) filters and elliptical and resonant filters.
• New additional “D-Max” limiter with look-ahead processing allows absolute loudspeaker systems protection.
• Delay memory allows for up to 650 mS from any input to any output , extra fine delay resolution on outputs in 30 nS (0.1 mm).
• Extended memory capacity: user memories now extended to a maximum of 255.
• Improved converters: dynamic range up to 116 dB, lower noise and improved distortion figures.
• AES input interface: accepts AES rates from 32 kHz up to 192 kHz via a sample rate converter.
• ALL functions are available though the front panel interface.
• Bigger 2 x 24 character display and new back-lit low profile ergonomic buttons.
Power Supply : 90V - 220V AC, 50 - 60 Hz
Connectors : RS232: 9 pin DEE
Input Connectors : 3 pin XLR female
Output Connectors : 3 pin XLR male
CMRR (Common Mode Rejection Ratio) : >65 dB, 50 Hz - 10 kHz
AD/DA converters : 24 bit - 96 kHz
Dimensions (W x H x D) : 48.2 x 4.4 x 30 cm
Distortion (THD) : <0.02% @ 1 kHz, +18 dBm
Parametric Equalization : 104 filter sections (8 per input - 9 per output)
Gain: +15 dB to -30 dB, 0.1 dB steps
Frequency: 19.7 Hz – 32 kHz, 1/36 octave steps
Filters Q/BW: 0.4 to 128 / 2.5 to 0.008
Shelving filters: Low freq, 19.2 Hz – 1 kHz; High freq, 1 kHz – 32 kHz - gains: ±15 dB in 0.1 dB steps
Crossover Filters : Filters: 1 of each per output.
Freq. Range HPF: 10 Hz – 16 kHz 1/36 octave steps.
Freq. Range LPF: 35 Hz – 22 kHz 1/36 octave steps.
Responses: 1st Order 6 dB/Oct. Bessel/Butterworth/Linkwitz-Riley 12-24-48 dB/Octave. Bessel/Butterworth 18 dB/Octave.
Sampling Frequency FS : 96 kHz
Output Gain : +15 dB to -40 dB, 0.1 dB steps + mute
Input Impedance : >10 kohm
Indicators (LED) :
Input meter 4 x 4 points, Output meter 8 x 4 points, 12 red MUTE buttons, 12 yellow EDIT buttons, 6 blu Control Keys buttons
Inputs : 4 electronically balanced
Maximum Input Level : +20 dBm on 600 ohm
Weight : 3.3 kg(7.276lb )
Power consumption : <30W
Internal Processing : optimised double precision signal processing
S/N Ratio : >116 dB, 20 Hz - 20 kHz, unweighted
Frequency response : +½ dB 20 Hz - 20 kHz -3 dB @ 32 kHz
Display : 2 x 24 Character LCD
Limiter threshold : +22dBu to -10dBu
Limiter Attack Time : 0.3 to 90ms or ATC (automatic time constant)
“D-Max” Limiter: Attack Time: -60 uS
Limiter Release Time : 2, 4, 8, 16, 32 times attack time or ATC (automatic time constant)
“D-Max” Limiter: Release Time: Slow/Medium/Fast
Delay : Up to 650 ms in 0.3 μS step
Latency: 1.5 mS (analogue in – analogue out @ 96 kHz)
Rack Units : 1U
Outputs : 8 electronically balanced
User's manual (pdf) - english
User's manual (pdf) - Italian
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