LPP480A Datasheet

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LPP480A Datasheet | Manualzz

®

LPP480A

FIR 4 In - 8 Out Speaker Management System

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 Sw 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.

Features

Top-grade DSP Engines 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

RS485/TCP-IP connection for system setup, monitoring and control via fully manageable remote PC software

Simultaneous control up to 32 units via PC software

Applications

Auditoriums

Convention Centers

Houses of Worship

Stadiums and Arenas

Theaters

Touring Musicians

Performing Art Centers

Stage Monitoring System digital

Designed in Italy Assembled in China

LPP480A

SEED Guangzhou Electronic LTD. 4F/5F, Build B, No.885, Shenzhou Road, Guangzhou, China Tel:+86 (20) 62845258 - www.marani-proaudio.com - [email protected]

®

LPP480A

FIR 4 In - 8 Out Speaker Management System

Audio

Analog Input -------------------------------

Analog Output -----------------------------

Digital Input --------------------------------

Minimun Load ------------------------------

THD+N -------------------------------------

S/N ------------------------------------------

Ground Noise------------------------------

Frequency Response ---------------------

AD & DA Converters ----------------------

4 x XLR electronically balanced

8 x XLR electronically balanced

2 x AES/EBU; Gain 0dBu

150 ohm

0.001% at 1kHz 0dBu

>110dBA

-90 dBu

20Hz - 20kHz; -0.5dBu at 20Hz and 20kHz

24bit - 96kHz

DSP & Processing

DSP Engine --------------------------------

DSP Resolution ---------------------------

FIR for Phase Correction-----------------

2 x MARANI® DSP

24bit (data) x 24 bit (coeff.), 54 bit accumulation registers, 96 bit precision on intermediate processing data

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

13 PEQ filters per input; 7 filters per output Parametric Equalization -----------------

Filter Type ---------------------------------

Filter Gain ----------------------------------

Center Frequency -------------------------

Filter Q/BW --------------------------------

Bell, Shelving, HP/LP, Band Pass, Notch Filter, All Pass

From -15dBu up to +15dBu by 0.5dBu resolution steps from 20Hz up to 20kHz with 1Hz resolution steps

Bell Type: Q from 0.4 up to 128 in 100 steps

Shelving/Hp/LP Type: Q from 0.1 up to 5.1 in 100 steps

Band Pass/Notch Type/All Pass: Q from 4 up to 104 in 100 steps

Input & Output Gain-------------------------From -18dB to +12dB by 0.1dBu resolution steps

IIR Crossover Section Hp/Lp ------------- Butterworth: 6/12/18/24/36/48dB per octave

FIR X-Over Section Hp/Lp/Bp-------------

Internal Noise Generator-----------------

Input Noise Gate--------------------------

Input/Output RMS Compressor---------

Output Peak Limiter----------------------

Delay----------------------------------------

Routing-------------------------------------

Bessel: 12/24dB per octave

Linkwitz-Riley: 12/24/36/48dB per octave

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

White/Pink Noise; Level from -40dBu to 0dBu

Threshold from -80dBu up to -50dBu, or not active

Attack time from 1ms up to 1000ms; Release time from 10ms up to 1000ms

Threshold from 20dBu up to -10dBu; Makeup from -12dBu to +12dBu

Ratio: 2:1~32:1; Knee: 0~100%;

Attack time from 0.1ms up to 5000ms; Release time from 0.001sec up to 10sec

Threshold from 20dBu up to -10dBu;

Attack time from 0.1ms up to 900ms; Release time from 0.04sec up to 56sec

480 ms 10.4us increment/decrement steps for each input, 340ms 20.8us increment/decrement steps for each output

Inputs/ Outputs Full matrix mixing mode

General

Device Presets ---------------------------

Front Panel -------------------------------

Rear Panel ---------------------------------

Main AC ------------------------------------

Dimensions --------------------------------

Weight, Net / Shipping -------------------

Up to 16 User Presets

2 x 24 character LCD display with green LED backlight

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

(2+2) x XLR female connectors (4 x Analog Input or 2 xAES/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

90-240VAC (50/60Hz) – 40W

19”x 1.75”x 9” (483x44x229mm) 1RU

7.71 lbs (3.5 Kg) / 8.82 lb (4 Kg)

Specifications subject to change without notice

Designed in Italy Assembled in China

LPP480A

SEED Guangzhou Electronic LTD. 4F/5F, Build B, No.885, Shenzhou Road, Guangzhou, China Tel:+86 (20) 62845258 - www.marani-proaudio.com - [email protected]

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