FBT DLM 260 - 2-Input/6-Output Digital Loudspeaker Management Processor with RMS/Peak Limiter and LCD Display in Black Finish

The FBT DLM 260 is a highly advanced, DSP-based 2-input/6-output digital loudspeaker management processor, designed to meet the needs of both fixed installations and live events. Housed in a compact 1U unit, this processor combines a multitude of essential audio tools, delivering exceptional performance in a single, user-friendly package. The DLM 260 features an intuitive LCD display, allowing for easy access to all settings and configurations, and provides extensive PC remote control capabilities, making it perfect for complex audio systems or smaller, multi-zone installations where precise control is paramount.

With flexible input-output routing and a variety of processing options, the DLM 260 offers a complete solution for managing speaker systems. The processor allows for freely assignable routing from the two inputs to the six outputs, with advanced equalization options, including up to 31 IIR EQ for inputs and 8 IIR EQ for outputs. Multiple filter types such as IIR, FIR, and Linear Phase crossover filters are available, allowing for tailored sound shaping to suit any environment. The processor's RMS and peak limiters protect your speakers from excessive power, ensuring safe and reliable operation even in high-demand environments.

Designed for ease of use, the DLM 260 offers a front panel USB port for quick PC connection, and Ethernet or RS 485 networking options for larger systems, allowing for greater flexibility and scalability. The onboard web server and intuitive browser-based interface provide seamless control via PC, tablet, or smartphone, offering secure, password-protected access to system settings. The DLM 260's comprehensive processing capabilities and user-friendly interface make it an essential tool for audio engineers seeking to manage complex speaker systems with precision and efficiency.

Features

• 2 inputs, 6 outputs for versatile routing and system configuration
• Comprehensive DSP processing including EQ, delay, noise gate, dynamic loudness, and more
• Multiple filter types: IIR, FIR, and Linear Phase crossovers for customizable sound shaping
• RMS and peak limiters to protect speakers from excessive power
• Frequencies and phase response measurement with PC and sound card for accurate tuning
• Auto EQ routine using IIR, FIR, Linear Phase filters, and user target curves for precise audio performance
• Signal generator for pink/white noise to aid system calibration
• One-press mute buttons for all inputs and outputs for easy control
• Front panel control with LCD display and intuitive menu for easy setup and monitoring
• Networking options with Ethernet or RS 485 for larger systems, ensuring scalable and flexible setups
• 32 user presets to store system configurations, plus the option to import preset files via PC
• Six-segment LED metering for input and output levels and limiter operation
• Three custom user modes with individual password protection for secure access
• High signal-to-noise ratio of > 116dB (A weighted) for exceptional audio clarity
• Compact 1U rack-mountable design for easy integration into any system
• Dimensions: 19 x 9.1 x 1.75 inches, weight: 6.6 lbs for easy installation and portability
• Operating voltage range of 90 - 240V AC, compatible with global power systems
• Comprehensive protection circuits including short circuit, DC, temperature, and overload protection for safe operation

Specifications

General

• Input Impedance: 20K Ohm balanced
• Output Impedance: 100 Ohm
• 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

Connectors

• Audio Input: 2 x 3 pin female XLR
• Audio Output: 6 x 3 pin male XLR
• Ethernet: 1 x Shielded RJ45, Dynamic or Static IP
• RS485: 2 x RJ45
• USB: 1 x USB Type-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: 19 x 9.1 x 1.75 inches
• Weight: 6.6 lbs