In the second installment of the series on the Mini Convertible active loudspeaker project, John Reekie walks through the crossover design. Each step is explained and detailed measurements taken to illustrate the process.
“I’ve always been more of a two-channel audio enthusiast than a home theater enthusiast,” writes John Reekie, “and the idea of spending a lot of money on our home theater system or a lot of time optimizing it has never been particularly appealing.” Nonetheless, he delves into applying miniDSP’s new HDMI audio processor, the nanoAVR, in his home theater system.
John Reekie describes the design of the HifiZine Mini Convertible, an active loudspeaker project using drivers from Seas of Norway and a miniDSP plate amp with B&O ICEPower for amplification and DSP crossover. The speaker can be configured as a small sealed monitor, or the base plate can be removed and replaced with a hollow stand, turning the speaker into a ported floor-standing speaker. This is the first artlcle in a series of three.
The miniDSP “stack,” consisting of three boards called miniDSP, miniDIGI, and miniAMP, is an interesting little platform for the audio experimenter, offering digital and analog inputs and outputs, comprehensive crossover and digital equalization functionality, and four channels of amplification. John Reekie takes a look at this offering, and walks us through assembly of the stack.
The new 2-in 8-out “2×8” DSP card from miniDSP is ideal for active speakers. John Reekie walks us through its functions, using his 4-way open-baffle prototype speaker as an example.
“These diminutive units have won me over as a practical and affordable solution for all kinds of applications in an audio system,” writes John Reekie of the miniDSP 2×4 crossover/eq. This article continues his tutorial series on the miniDSP, with measurement and refinement of his 4-way open-baffle speaker.
This article, the second in a series of tutorials on the miniDSP, demonstrates how to use the miniDSP as a crossover/eq for a 4-way loudspeaker. The speaker is an open-baffle loudspeaker, a configuration that has been gaining popularity in DIY circles in recent years.
This is a tutorial on using the miniDSP 2×4 “DSP in a box” for equalizing a subwoofer and integrating it into a two-channel audio system.