Description
LPP480A is a High End 4-IN/8-OUT digital speaker management system which maintains the same outstanding Sound Quality of the former DPA480 version, but highly improved in terms of DSP processes and added of an astonishing FIR filtering tool set. Designed for maximum versatility, it provides all the processing and control necessary for both live and fixed installation use. Proving for any crossover configuration, it offers 4 analog inputs, 8 analog outputs and 2 AES/EBU inputs, managed by 2 powerful MARANI® DSP Engines, for a full 96kHz processing, in addition to 24 Bit AD/DA Converters. Each input channel provides a choice of a 13-band Parametric EQ, Gain control, Noise Gate, RMS Compressor, Internal White/Pink Noise Generator, and configurable Delay. Each output offers up to 7-band of parametric equalization, in addition to the IIR crossover filters which themselves provide slopes from 6dB/Octave up to 48dB/Octave. Each output path also features PEAK Limiter, RMS Compressor and configurable Delay. Particularly, the Output X-Over Filtering can be selected to be IIR style, with the complete set of Classic Hp/Lp filters (Butterworth, Linkwitz-Railey, Bessel) or FIR, being for each output channel available a 512 taps FIR filter which can be set as Hp/Lp/Bp. On each one of the 4 Input paths, one more 1024 taps Asymmetrical FIR is available for Phase Correction purposes, where the Coefficients Calculation can be supported by an embedded Wizard tool or can be Loaded from external sources as Third Parties software for the FIR filters coefficients generation. Being the phase correction FIR Asymmetrical, a powerful tool for adjusting/reducing the FIR latency is available, allowing therefore the LPP480A to be used without any problem also for Live performances still having the Phase correction FIR running together with the eventual FIR for the X-Over implementation in cascade.
The LPP480A supports a full set of matrix mixing modes where Input sources can be routed/mixed to the Input paths, inputs paths may be routed/mixed in any ratio to any output and couple of outputs (1/2, 3/4, 5/6, 7/8) can be swapped at pleasure. For remote configuration and control the LPP480A can be connected via USB/RS485/TCP-IP connections.
The control remote PC software allows simultaneous control up to 32 units, setting all parameters and showing real time levels.
| Top-grade DSP Engine and Processes | 13 band parametric equalization per input channel 7 band parametric equalization per output channel Each band can be switched to Bell, Shelving, HP/LP, Band Pass, Notch Filter, All Pass IIR Crossover filters with slopes from 6 up to 48 dB/ Octave including Butterworth, Bessel, Linkwitz-Riley FIR X-over Filters with number of Taps from 256 up to 512, Attenuation and Window Type Asymmetrical 1024 Taps FIR for Phase Correction on each of the 4 Input paths [FIR coefficients generated internally by the machine or loadable from external third parties applications] RMS compressors working on Look Up tables for the Compression coefficient are available on Input and Outputs paths. On Outputs a further Peak Limiter is available at the end of the paths. Adjustable Delay time up to 480 ms for every input channel and 340 ms for each output channel |
| Direct PC/Network Connection |
Front panel USB connector for direct PC communications |
Audio
| Analog Input | 4 x XLR electronically balanced |
| Analog Output | 8 x XLR electronically balanced |
| Digital Input | 2 x AES/EBU; Gain 0dBu |
| Minimum Load | 150 ohm |
| THD+N | ≤0.005 @1kHz 20dBu ≤0.004 @1kHz 0dBu |
| S/N | >112dBA |
| Max Input Level | +20 dB |
| Max Output Gain | +20 dB |
| Frequency Response | 20Hz – 20kHz; -0.5dBu at 20Hz and 20kHz |
| AD & DA Converters | 24bit -96kHz |
DSP & Processing
| DSP Engine | 2 x MARANI® DSP |
| DSP Resolution | 24 bit (data) x 96 bit (coeff.), 54bit accumulation registers, 96 bit precision on intermediate processing data |
| FIR for Phase Correction | Asymmetrical 1024 Taps, with coefficients generated by Pc Sw embedded Wizard tool, allowing also FIR latency Adjustment/reduction. Coefficients can also be imported by external third party applications, so as can be exported to third parties applications |
| Parametric Equalization | 13 PEQ filters per input 7 filters per output |
| Filter Type | Bell, Shelving, HP/LP, Band Pass, Notch Filter and All Pass |
| Filter Gain | From -15dBu up to +15dBu by 0.5dBu resolution steps |
| Input&Output Gain | From -18dBu up to +12dBu by 0.5dBu resolution steps |
| Center Frequency | from 20Hz up to 20kHz with 1Hz resolution steps |
| Filter Q/BW | Bell Type: Q from 0.4 up to 128 in 100 steps Shelv/Hp/LP Type: Q from 0.1 up to 5.1 in 100 steps BandPass/Notch Type: Q from 4 up to 104 in 100 steps |
| IIR Crossover section HP/LP | Butterworth 6/12/18/24dB per octave Bessel 12/24dB per octave Linkwitz-Riley 12/24/36/48 dB per octave |
| FIR X-Over Section Hp/Lp/Bp | Hp/Lp/Bp filters, Taps from 256 up to 512, Attenuation up to -120dB, Window type as Rect / Sinc / Keiser / Hanning / Hamming / Blackman / Nuttal / Sine |
| Internal Noise Generator | White/Pink Noise; Level from -40dBu to 0dBu |
| Input Noise Gate | Threshold from -80dBu up to -50dBu Attack time from 1ms up to 1000ms; Release time from 10ms up to 1000ms |
| Input&Output RMS Compressor | Threshold from 20dBu up to -10dBu Ratio: 2:1~32:1; Knee: 0~100%; Makeup from -12dBu to +12dBu Attack time from 0.1ms up to 5000ms; Release time from 0.001sec up to 10sec |
| Output Peak Limiter | Threshold from 20dBu to -10dBu Attack time from 0.1ms up to 900ms; Release time from 0.04sec up to 6sec |
| Routing | Full matrix mixing mode |
| Delay | 480 ms 10.4us increment/decrement steps per input, 340ms 20.8us increment/decrement steps per output |
| Ground Noise | -90 dBu |
General
| Device Presets | up to 16 User Presets |
| Front Panel | 2 x 24 character LCD display with green LED back light 7-LED meter per input channel -15dBu to +15dBu, clip and limiter mode 7-LED meter per output channel -15dBu to +15dBu, clip and limiter mode Blue LED (Edit) per channel Red LED (Mute) per channel NAV/PM1 Rotary encoder push button switch PM2, PM3, ENTER, ESC, UTILITY push button switches EDIT/MUTE push button per channel USB type A connector |
| Rear Panel | (2+2) x XLR female connectors (4 x Analog Input or 2 x AES/EBU) 8 x XLR male connectors (Output) 1 x RJ45 connector for RS485 (Input) 1 x RJ45 connector for RS485 (Output) 1 x RJ45 connector for TCP-IP 1 x Ground-lift toggle switch 1 x Analog/Digital toggle switch IEC C13 16A connector; Power on/off switch |
| Main AC | 90-240VAC (50/60Hz) – 40W |
| Dimensions | 19”x 1.75”x 9” (483x44x229mm) 1RU |
| Weight, Net / Shipping | 7.71 lbs (3.5 Kg) / 8.82 lb (4 Kg) |
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.