FBT DLM260 Digital Loudspeaker Management Processor with 2 Inputs, 6 Outputs

The FBT DLM260 Digital Loudspeaker Management Processor is a DSP based 2 inputs x 6 output digital loudspeaker management processor, ideally suited for fixed installations and live events. It combines the functions of a multitude of conventional products in a compact 1U unit with extensive PC remote control capabilities.
Routing is freely assignable from the two inputs to the six outputs. Input and output equalisation is available with a choice of 16 filter options. A total of 31 IIR EQ is available for each input, or 13 IIR EQ + FIR;eight IIR EQ for each output or four IIR EQ + FIR is also available. Many options for crossover type include IIR from 6 to 48dB/oct, FIR and Linear Phase with constant group Delay. Input and output delay is available to time align components in a system; RMS and peak limiters will protect your speakers from damage due to excessive power being applied.
On input paths, the processing chain sees in cascade: input gain / delay / noise gate / dynamic loudness / filtering section / RMS compressor.
On output paths the processing chain sees in cascade: output gain / delay / polarity/ filtering section / RMS compressor / peak limiter.
The processor features 32 user memory locations to store popular configurations and settings can be exported to a file via the dedicated PC application, either as a back-up or to store more favourite configurations if the 32 on-board presets are not sufficient. A very useful function is the ability to recall entire output channel configurations. PC connectivity is available via a front panel USB port but for larger systems with several processors can use Ethernet or RS-485 network connections.

FBT DLM260 Digital Loudspeaker Management Processor Features

- Professional 2-input, 6-output system processor
- Comprehensive processing options including EQ, Gate, Delay, Dynamic EQ
- Fully assignable matrix routing of both inputs to any output
- IIR, FIR and Linear Phase crossover
- RMS and Peak limiter
- 3-level customizable user modes with individual password protection
- 32 user Presets to store system configurations
- Front panel USB port for quick and easy PC connection

FBT DLM260 Digital Loudspeaker Management Processor Specifications

- Input Impedance: 20K Ω balanced
- Output Impedance: 100 Ω
- Max. Input Level: +20dBu
- Max. Output Level: +18dBu
- Crosstalk: < -95dB
- Sample Rate: 48kHz
- Signal to Noise Ratio: > 116dB (A weighted)
- Noise Floor: < -95dB (A weighted)
- Common Mode Rejection Ratio: 60dB
- Frequency Response: 20Hz - 20kHz +0.3dB
- THD (+4dBu 1kHz): < 0.003%
- Mains Voltage Range: 90 - 240Vac / 50-60Hz
- Nominal Power Consumption: 30W

Connections:
- Audio Input: 2 x 3 (4 x 3) pin female XLR
- Audio Output: 6 x 3 (8 x 3) pin male XLR
- Ethernet: Shielded RJ45, Dynamic or Static IP
- RS485: 2 x RJ45
- USB: 1 x USB "B"
- Mains: 3 pin IEC

Processing:
- Signal Generator: White/Pink noise - Level range: -30dBu +10dBu
- Input & Output Gain: -18dB +12dB, step 0.1dB
- Noise Gate:
  - Threshold: -80dBu -45dBu
  - Attack time: 1ms 1000ms
  - Release time: 1ms 1000ms
- Dynamic Loudness Filter:
  - Gain range: 0dB -10dB
  - Attack speed: fast/medium/slow
- Parametric EQ:
  - Input channels up to 31 optional types of EQ
  - Output channels up to 8 optional types of EQ
- Optional Filter types:
  - Bell classic and constant Q 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
- Center Frequency: Adjustable within the frequency range of 20Hz-20kHz with a step accuracy of 1Hz
- Q value / Bandwidth: The Q value range of Bell filter is 0.4 - 128, the step is 0.01, the range of the Q value of the Chevron/highpass/lowpass filter is 0.1 - 5.1 and the step is 0.01, the value range of bandpass /notch filter Q is 4 - 104 and step is 1
- EQ Gain range: -15dB +15dB
- IIR Crossover Filter:
  - Butterworth slope: 6/12/18/24/36/48dB per octave
  - Bessel slope: 12/24dB per octave
  - Linkwitz-Riley slope: 12/24/36/48dB per octave
- Linear Phase Filter: Linkwitz-Riley: 24/48dB per octave
- FIR Crossover Filter:
  - Type: 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 Compressor:
  - Starting 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: Max 12dB
- Peak Limiter:
  - Threshold range: -10dBu +20dBu
  - Attack time: 1ms - 1000ms
  - Release time: 10ms - 3000ms
- Delay: The adjustable delay time of each input channel + output channel is 452ms, step accuracy 0.0104ms
- FIR Filter: Each input channel and output channel can import FIR filter with 48kHz sampling rate and 512 taps

Physical:
- Dimensions (W x H x D): 482 x 44 x 230 mm
- Weight: 3.0 kg