FBT
FBT DLM 26 Digital Loudspeaker Management Processor
FBT DLM 26 Digital Loudspeaker Management Processor
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DLM26 | 2-In / 6-Out DSP Loudspeaker Management System
The DLM26 is a professional-grade digital loudspeaker management processor designed for demanding live sound and fixed install applications. With 2 inputs and 6 outputs, it delivers high-resolution signal processing via premium AKM 24-bit converters and double-precision DSP, all housed in a compact 1U chassis.
Engineered for flexibility, the DLM26 supports multiple routing modes—including full-range 6-way, 2×3-way, and 2×2-way + sub configurations—as well as an exclusive DCL (Double Compressor Limiter) mode for enhanced driver protection in passive two-way systems. Remote control and configuration are available via USB or RS485, with full access to all parameters and real-time metering.
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Key Features
- 24-bit AKM5392 A/D and AKM4396 D/A converters — >110dB dynamic range, low-noise signal path
- DCL Mode — Dual-band RMS compressor and peak limiter with adjustable crossover point per output
- Fully assignable routing — L, R, or L+R selectable per output, with customizable crossover topologies
- Advanced EQ and filtering — High-pass, low-pass, shelving, and all-pass filters per channel with custom Q
- Per-output dynamics — RMS compressor (soft knee) and peak limiter with time constant optimized for speaker protection
- Delay Alignment — Up to 288.66ms delay per input/output in 6.8µs steps
- Real-time visual feedback — Full LED metering on input/output with clip and limiter indicators
- PC control software — USB or RS485 control of up to 32 networked units, with visual EQ and dynamics editing
- Installer-friendly features — Parameter change ramping, 64 preset slots, password lockout, two security levels
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Applications
- Touring systems and live production racks
- Installed sound—clubs, churches, theaters, auditoriums
- Passive loudspeaker arrays requiring bi-amp or cardioid sub alignment
- Rental inventories needing secure, repeatable presets
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Technical Specs
| Inputs | 2 × analog (XLR), 1 × stereo S/PDIF |
| Outputs | 6 × analog (XLR) |
| Converters | AKM5392 A/D, AKM4396 D/A – 24-bit |
| Dynamic Range | >110dB |
| Filters | HP/LP, All-Pass (1st/2nd order), Shelving, EQ with custom Q |
| Crossover Slopes | 6–24 dB/oct, standard and custom curves |
| Delay | Up to 288.66ms per channel, in 6.8μs steps |
| Presets | 64 memory slots with lockout and dual password protection |
| Connectivity | USB-B, RS485 (up to 32 units networked) |
| Power | 100–240V AC, 50/60Hz |
| Dimensions / Weight | 1U (19"), approx. 3 kg |
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The DLM26 is built for professionals who demand precise control, reliable protection, and superior audio performance—whether in the field, on tour, or in permanent installations.
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