The SBD44P is a four input, four output Digital Signal Processor (DSP) intended for use in active loudspeakers or standalone processors for professional audio or high end home audio. All connections on SBD44P are internal multi-pin connectors.

To build a full product, additional PCBs are needed with external connectors. See “Accessories” for details. The SBD is designed as a plug-in module to be placed on a motherboard, such as an I/O board or interface board.

KEY FEATURES
• 4 inputs, 4 outputs
• 48kHz sample rate
• Best-in-Class performance
• State-of-the-art digital processing
• Programmable User Interface
• Monitoring and permanent logging of key parameters such as temperature, signal level and gain reduction
• 144 FIR taps per output
• 100 presets
• Optional Dante and AES67 module available
• Prepared for AVB / MILAN (coming soon)
• Multiple display and GPI / GPO support
• Full customization options
• Two DC inputs for potentiometers
• Two temperature sensor inputs
• One internal temperature sensor
• 100Mbit LAN with loop through
• Flexible signal routing matrix
• Small footprint, fits in most applications
• Cost effective

Please also see AN812: Common Features MK2 as well as the Application Notes on our website www.alldsp.com for additional information. To see all application notes and detailed technical information, please request a login by sending an email to [email protected]. Some of the listed features are optional. Please contact us for detailed information.

Parameter	Test Condition	Min	Typ	Max	Unit
Analog Inputs (electronically balanced)		4
Dynamic Range	< 1% THD, A wtd	116	120		dB(A)
Max. Input Level	< 1% THD	20			dBu
Delay		30			ms
Digital Inputs		-
Analog Outputs		4
Dynamic Range	Max. level limited by DSP (A wtd)	110	113		dB(A)
Maximum Output Level	Limited by DSP	13			dBu
Noise Floor	Default setting, Channel muted		-100	-97	dBu(A)
Source Impedance		470			Ω
Delay		10			ms
Digital Outputs		-
Input-to-output latency	FIR disabled, unity gain	1000			µs
Gain (without amplifier, DSP only)		0 +/- 0.5			dB
Dynamic Range (unity gain, DSP only)	< 1% THD, A wtd	107	110		dB(A)
THD	0 dBu, 1kHz, unity gain, DSP only, 2 channels		0.005	0.01	%
Frequency Response (DSP only)	0 dBu, unity gain, DSP only, +/- 0.5 dB	20…20k			Hz
Number of processors		1
Sample rate		48			kHz
Presets		100
PEQ (per channel)		10			bands
Grouping EQ (each input)		5			bands
Crossover (each input, LPF and HPF)		24			dB/Oct
Crossover (each output, LPF and HPF)		48			dB/Oct
Compressors (per channel)		4			bands
Limiter (switchable true RMS / Zero Attack, each in and out)		1			bands
Analog Supply Voltage VCC / VSS		+/- 12	+/- 15	+/- 16	V
Current consumption VCC		300
Current consumption VSS		100			mA
Temperature		0		50	ºC
Humidity				80	%RH

All values, specifications, features and other statements are for information purposes only and do not constitute a guarantee. Specifications are measured in real-life environments. Due to manufacturing differences, deviations can occur. All information may be changed by ALLDSP without notice.

Please log in to see downloads.