MiniDSP

This application note will study how miniDSP products can be combined to build a processed 2 way loudspeaker configurations. The target audience is expected to understand basics of miniDSP products along with basics of Digital Crossovers. Also note that this application note is only intended as a summary of the information already contained in miniDSP, miniDIGI and miniAMP User manual. For more information, please refer to our product datasheets, user manuals and technical notes available in the Download Section of miniDSP website.

miniDSP Standalone configuration

Systems Requirements

- 1 x miniDSP kit (Rev A or B, depending on your input source)

- 1 x Stereo 2 way crossover plug-in (PEQ, Graphic EQ or 2.1 version)

- Input source: Un-Balanced Analog audio Left & Right (L&R)

- Processed output signal: Un-Balanced Analog audio Left (Low, High) & Right (Low, High)

- Power supply: Single USB charger OR external DC supply connected to the expansion bus connector. See External DC application note for more info

Jumper configuration

- In standalone configuration, no jumper configuration is required. miniDSP is Clock Master and center jumper is on default Master position (M).

miniDSP + miniDIGI configuration

Systems Requirements

- 1 x miniDSP kit (Rev A or B, depending on your input source)

- 1 x miniDIGI (Rev A or B depending if you require isolation transformers or not)

- 1 x Stereo 2 way crossover plug-in (PEQ, Graphic EQ or 2.1 version)

- 2 x link cables provided with the kit

- Input source: Un-Balanced Analog audio Left & Right (L&R) OR Digital Audio source (SPDIF/Toslink)

- Processed output signal: Un-Balanced Analog audio Left (Low, High) & Right (Low, High) AND Un-processed digital audio output available for linking to other miniDIGI boards.

- Power supply: Single USB charger to the miniDSP will provide power to both boards OR single external DC supply (4.5 to 24VDC) connected to miniDIGI

- In a stacked configuration with a miniDIGI board, miniDSP needs to be configured as a Clock Slave (Jumper on S position) and miniDIGI as I2S Slave (Jumper in place). Please refer to the jumper chart for more information on the required board configuration.

miniDSP + miniDIGI + miniAMP configuration

Systems Requirements

- 1 x miniDSP kit (Rev A or B, depending on your input source)

- 1 x miniDIGI (Rev A or B depending if you require isolation transformers or not)

- 1 x miniAMP for 2 x 20W @ 8Ohms or 4 x 10W@4Ohms

- 1 x Stereo 2 way crossover plug-in (PEQ, Graphic EQ or 2.1 version)

- 2 x link cables provided with the kit

- Input source: Un-Balanced Analog audio Left & Right (L&R) OR Digital Audio source (SPDIF/Toslink)

- Processed output signal:

• Un-Balanced Analog audio Left (Low, High) & Right (Low, High)
• Un-processed digital output available for linking to other miniDIGI boards
• Depending on your miniAMP configuration, system could be configured as: 2 x 20W (e.g High Freq out of miniAMP, Low Freq out from miniDSP analog out to a more powerfull external amplifier) OR 4 x 10W (e.g.Low and High Freq coming out of miniAMP)

- Power supply: Single External 12-24VDC supply connected to miniAMP

- In such stacked configuration, miniDSP needs to be configured as a Clock Slave (Jumper on S position) and miniDIGI as I2S Slave (Jumper in place). Please refer to the jumper chart for more information on the required board configuration..

- Can I use both Digital and Analog outputs together in a stacked miniDIGI/miniDSP configuration? Yes, see our miniDSP plug-in datasheet for more information on how outputs are doubled up to both analog AND digital out.

- Can I connect an external DC supply AND USB together? Yes, it's not a problem since they are both surge protected.

- How can I toggle from Analog to Digital input in a miniDSP + miniDIGi configuration? Source selection is available both in software AND hardware using a toggle switch. See our miniDIGI user manual for more information.

- Having other similar questions about this configuration? Please check miniDSP FAQ's and Download section for more info.