ENIGMA 48PRO |
348978
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ENIGMA 48PRO

ENIGMA248 PRO is a High End 4-IN/8-OUT digital speaker management tool that allows all aspects of loudspeaker management for Live and fixed Install sound system applications. Designed for maximum versatility, it provides all the processing and control necessary to setup and manage the most complex sound systems.

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ENIGMA 48pro is a digital audio processor newly designed for Lloyd Lee Company. It has extremely low noise floor, high dynamic range and powerful internal DSP to cover most of the usage scenarios. Whether in meeting rooms, theatres, touring performances, or even large-scale tours, you can use the A series processors. Advanced circuit design and original DSP algorithm are the core of pure and high-quality sound.

In the signal processing part of ENIGMA 48pro , the DSP and AD/DA converters are running at 96KHz sampling rate, complete processing functions provide a complete speaker crossover solution.

From input gain/delay/noise gate/EQ/compression/FIR ,to output gain/delay/polarity/frequency division/FIR/EQ/compression/compression, there are up to 16 types of parametric equalizer (PEQ) The filter type can be selected. The output crossover filter has the classic Linkwitz-Riley /Bessel/Butterworth, and there are also NXF horn type filters and FIR filters with a slope of up to 120dB per octave. The newly added MIR linear phase frequency divider filter can make the phase of the crossover point easier to join and produce a lower delay. Everything we provide is for better sound.

Added DSP plug-in, providing 96kHz FIR filter/high order signal generator/RTA real-time spectrum analyzer, etc. The newly designed Hard Limiter (Hard Limiter) allows a constant rate limit on signals exceeding the threshold at any threshold to better protect the speaker unit. Each input and output channel provides a maximum 512-tap FIR filter, which can be customized by third-party software to generate the FIR convolution you need. It can be used for speaker presets to improve the phase response and control the directivity according to requirements.

The newly added MIR linear phase divider filter has the filter shape of the traditional IIR filter (Linkwitz-Riley 24+48/oct), but does not produce any phase shift, and the resulting delay is about 50% of the FIR filter.

Features

  1. The machine runs at 96KHz sampling rate, the frequency response remains flat at 20-40Khz, the background noise is as low as -94dBu, and the maximum input level reaches +20dBu.
  2. Full matrix mixing, any input channel can be sent to the output channel, and even several non-adjacent output channels can be superimposed and mixed to the physical output.
  3. Each input and output channel is equipped with an RMS compressor, which can control the signal dynamics on the input channel or use it to shape the sound intensity. The newly designed extremely low distortion peak limiter can prevent sudden large dynamic signals from damaging the speaker unit and effectively guarantee the safety of the system.
  4. Each channel is equipped with FIR filter up to 1024 Taps.
  5. New MIR linear phase crossover filter: MIR linear phase filter is a new X-over filter, which has the shape of a classic filter (LR24/48) without any phase distortion and keeps the phase curve flat straight.
  6. The machine is equipped with a standard network port, which can be directly connected to a PC through a network cable. The default DHCP automatically obtains an IP address and completes all connections with one click.
  7. The new marshalling setting can control 32 processors at the same time, and can control gain, mute, PEQ and polarity uniformly, which increases the convenience of multi-machine debugging.
  8. The input channel is equipped with a dynamic loudness booster, which can effectively enhance the sense of hearing.
  9. Add plug-in, including 96kHz FIR filter with extended bandwidth, high-order signal generator and RTA spectrum analysis.

Technical Specification

Analog Input4 x XLR electronically balanced
Audio
Input impedance                   <10k Ohm balanced
Output impedance                   <100R Impedance balanced
A/D dynamic range                   118dB
D/A dynamic range                   118dB
Maximum input level                   +20dBu
Maximum output level                   +18dBu
Total harmonic distortion                   ≦0.003%(+4dBu 1kHz)
Frequency response                   20Hz~40kHz
Crosstalk                   ≦-95dB
SNR                   ≧113dB (A weighting)
Noise floor                   ≦-94dBu (A weighting)
Common Mode Rejection Ratio                   60dB
Number of analog input channels                   4
Number of analog output channels                   8
Rs485 control port                   2
Network control port                   1
DSP Processing
Signal generatorwhite noise/pink noise, level range: -30dBu~+10dBu
input & output gain-18 dB ~ +12 dB, step 0.1dB
Noise gateThreshold range: -80dBu~-45dBu
Attack time: 1ms~1000ms; Release time: 1ms~1000ms
Dynamic loudness filterGain range: 0dB-10dB Attack speed: fast/medium/slow
Parametric equalizerInput channels up to 31 optional types of PEQ
output channels up to 8 optional types of PEQ
Optional types includeBell filter, 1st order high Shelf filter, 2nd order high Shelf filter Variable Q high Shelf filter, 1st order low Shelf filter, 2nd order low Shelf filter Variable Q low Shelf filter, 1st-order low-pass filter, 2nd-order low-pass filter Variable Q low pass filter, 1st order high pass filter, 2nd order high pass filter Variable Q high pass filter, band pass filter, notch filter 1st order all pass filter, 2nd order all-pass filter with variable Q value
The centre frequencyadjustable within the frequency range of 20Hz~20kHz with a step accuracy of 1Hz
Q value/bandwidthThe Q value range of Bell filter is 0.4~128,
the step is 0.01 The range of the Q value of the Chevron/high-pass/low-pass filter is: 0.1~5.1,
and the step is 0.01 The value range of bandpass/notch filter Q is: 4~104, step is 1
Equalizer gain range-15dB~+15dB
IIR crossover filterButterworth slope: 6/12/18/24/36/48dB per octave
Bessel slope: 12/24dB per octave
Linkwitz-Riley slope: 12/24/36/48dB per octave
NXF horn filter slope is 40/45/50/50/55/60/65/70/75dB per octave
MIR linear phase filterLinkwitz-Riley: 24/48dB per octave,NXF-40per octave
FIR crossover filtertype; high pass/low pass/band pass/external import
Taps range: 256 ~ 512,slope range 21 ~ 120dB per octave
Time window type: Rect / Sinc / Keiser /Hanning / Hamming / Blackman /Blackman-Harris/ Blackman-Nuttal / Nuttal/Keiser -Bessel/Sine
RMS compressorStarting threshold range: -10dBu~ +20dBu;
Compression ratio range:2~32: 1;
Soft and hard knee: 0~100%
Attack time:0.1ms~1000ms; Release time: 10ms~15000ms
Gain compensation: Maximum 12dB
Peak limiterThreshold range: -10dBu~ +20dBu
Attack time: 1ms~1000ms; Release time: 10ms~3000ms
Hard limiterThreshold range: -10dBu~ +18dBu
DelayThe adjustable delay time of each input channel + output channel is 452ms,
Step accuracy 0.0104ms (10.4us)
FIR filterEach input channel and output channel can import FIR filter with 48kHz sampling rate and 512 taps
General
Preset32
size482x44x207mm 1RU
Package size560x320x110(mm)
Net/Gross weight3.0 Kg / 3.5 Kg
Analog Output8 x XLR electronically balanced
Digital Input1 SPDIF; Gain 0dBu
Minimum Load150 ohms
THD+N0.001% at 1kHz 0dBu
S/N>110dBA

 

Frequency Response20Hz – 20kHz; -0.5dBu at 20Hz and 20kHz

 

AD & DA Converters24bit-96kHz
DSP EngineDream SAM3716,24 BIT (DATA) x 96 bit (Coeff.)
DSP Resolution24bit (data) x 24 bit (Coeff.),54bit accumulation registers, 96-bit precision on intermediate processing data
Parametric equalization30 PEQ filters per input; 11 filters per output
Input GainFrom -18dB to +12dB by 0.1dBu resolution steps
Output GainFrom -18dB to +12 dB by 0.1dBu resolution steps
Filter TypeBell, Shelving, HP/LP, All Pass, Band Pass, Notch Filter
Filter GainFrom -15dBu up to +15dBu by 0.5dBu resolution steps
Central FrequencySelectable with a 1Hz resolution step from 20Hz up to 20kHz
Filter Q/BWBell 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/ All Pass: Q from 4 up to 104 in 100 steps

 

Crossover Section HPF/LPFButterworth 6/12/18/24dB per octave

Bessel 12/24dB per octave

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

Output Peak Limiter

 

Threshold from 20dBu to -10dBu

Attack time from 1ms up to 900ms; Release time from 0.1sec up to 5sec

Headroom on internal overflow Processes               12dB

Input/Output RMS LimiterThreshold from 20dBu up to -10dBu

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

Make up from -12dB to +12dB

Attack time from 5ms up to 200ms; Release time from 0.1 sec up to 3 sec

 

Input Noise GateThreshold from -80dBu up to -50dBu
Internal Noise GeneratorWhite/Pink Noise; Level from -40dBu to 0dBu
RoutingFull Matrix Mixing Mode
Delay480 ms 10.4us increment/decrement steps per input, 270ms 10.4us increment/decrement steps per output
Ground Noise-90 dBuGeneral
Device pre-sets32 User Presets
Front Panel2×24-character LCD display with white/blue 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

Red/Blue Led (Edit/Mute) per channel

PM1/ENTER, PM2/ESC, PM3/UTILITY rotary encoder push buttons

EDIT/MUTE push button per channel

USB type B connector

Rear Panel4 x XLR female connector (Input)

8 x XLR male connector (Output)

2 x RJ45 connection

1x RS45 connection

IEC C13 16A connector; Power on/off switch

2 x AES/EBU

Main AC90-240VAC (50/60Hz) – 40W
Dimensions19”x 1.75”x 9” (483x44x229mm) 1RU
Weight Net /Shipping7.71 lbs (3.5 Kg) / 8.82 lb (4 Kg)

 

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