This application note will study how miniDSP products can be combined to build a processed stereo three way or four way crossover configuration. If you are new to the concept of multi-way DSP processed loudspeakers, please have a read at our Digital Crossovers section first. In three or four way stereo crossover configuration, a minimum of 2 x inputs by 6 outputs (3way) or 8 outputs (4way) will be required. The following application note will therefore propose two options:

• Option A: 2 x miniDSP 2x4 platforms, with its advantage of small size, lower cost, flexibility. Current 2x4 platforms include: miniDSP kit, miniDSP 2x4 (in a box), miniDSP balanced kit or 2x4 in a box.
• Option B: 1 x miniDSP 2x8/4x10Hd platform with its advantage of higher sampling rate (96kHz), control from a single USB connection and better SNR.
• Option C: 1 x nanoDIGI 2x8 platform as an all digital platform

Analog input crossover configuration

If your application only requires analog input, analog output, miniDSP platforms can easily cater your needs for a very affordable solution.

Systems Requirements

OPTION A

• 2 x miniDSP 2x4/kit/Balanced boards
• 1 x 4 way crossover plug-in (Advanced,Graphic EQ)
• Total of 6ch (3way) or 8ch(4way) channels power amplifier
• 1 x external DC Power supply or USB charger

OPTION B

• 1 x miniDSP 4x10 Hd
• 1 x 4x10 plug-in
• Total of 6ch (3way) or 8ch(4way) channels power amplifier

Digital input crossover configuration

If your configuration requires the option to input a digital input (SPDIF/TOSLINK), your system will require a miniDIGI. The miniDIGI is an SPDIF/TOSLINK input/output interface with embedded Asynchronous Sample Rate Converter (ASRC). The ASRC is a very important element since it allows connectivity to any digital audio source.

Systems Requirements

OPTION A

• 2 x miniDSP balanced/unbalanced kit
• 1 x miniDIGI board if all boards are to be stacked together, 2 x miniDIGI boards if you intend to separate the miniDSP + miniDIGI stacks
• 1 x 4 way crossover plug-in (Advanced,Graphic EQ)
• Total of 6ch (3way) or 8ch(4way) channels power amplifier
• 1 x external DC Power supply or USB charger

OPTION B

• 1 x miniDSP 4x10 Hd
• 1 x 4x10 plug-in
• Total of 6ch (3way) or 8ch(4way) channels power amplifier

All digital crossover with external DAC

For those of you looking for an all digital solution and reusing your existing DAC, the nanoDIGI 2x8 is the product you need.

Systems Requirements

• 1 x nanoDIGI 2x8(kit)
• Stereo DACs (3rd party)
• 1 x 2x8 nanoDIGI plug-in(Advanced,Graphic EQ)

Related FAQ's

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

- Can I link multiple miniDSP + miniDIGI together? Yes, using the miniDIGI un-processed output, one can easily link multiple miniDIGI + miniDSP stack. See manuals for more information.

- Can I connect an external DC supply AND USB together? Yes, 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.