Speakerbench Celebrates 5-Year Anniversary with Significant Updates

Speakerbench, the web-based application for loudspeaker design with an emphasis on an advanced transducer model, has been officially available since March 2020. Created by Claus Futtrup and Jeff Candy, the online tool celebrates its fifth anniversary with a significant update that introduces new valuable features, plus comprehensive documentation. Originally intended to support the loudspeaker DIY community, Speakerbench is increasingly recognized by global speaker designers at all levels.

After discussing computation of discrete alignments such as B4, BL4, LR4, IB4, and CD4, this new article in the "Computation of Bass Reflex Alignments" article series explores the real-world situation where it becomes impossible to have a system design that exactly matches a certain driver Qt, normally described as an alignment error (or misalignment). The technique presented allows designers to modify tuning towards a desired target response function.

In the fourth article from Claus Futtrup in his series about the invention, concept, and historical perspective of loudspeaker bass reflex alignments, he explores the Critically Damped Fourth-Order (CD4) bass reflex alignment. This alignment remains one of the least known and hasn't been discussed in literature related to loudspeaker design, even though it allows for interesting output properties. This article was originally published in Voice Coil, August 2024.

The new Genelec 1237A and 1238A Smart Active Monitors (SAM) are tri-amplified systems featuring AutoCal and GLM technologies and powerful Class D amplification. The 1237A and 1238A monitors feature on-board intelligence to automatically tune the frequency response to compensate for acoustical room influences, as well as achieving perfect alignment of levels and distance compensation at the listening position.