April 28, 2025

Crossover For 2-way SB Acoustic Speaker System

About eight years ago, I was built a 2-way speaker system using SB Acoustic drivers. The driver for woofer is SB16PFC25-08 and for tweeter is SB19ST-C000-4. You can visit the post here.

Although this speaker is sound good, but it is not perfect. This is because working on multi driver is challenging. The crossover is the components module to split the frequency range between woofer for low pass and tweeter for high pass. The crossover should make the sound from each of the drivers well blending with the correct phase, so the sound will be coherent. This is not an easy task since the crossover calculation should be made correctly. I made many changes since the day this speaker finished and the last update is on last August here. The goal for those changes is to make the sound enjoyable to listen, less dip and peak especially on the cross-over point, and make the sound fuller and wider.

So, in this post, I made other changes in this speaker system by using the detail parameter on each driver, then I calculate for the correct crossover point and components related to it. The damping materials inside also changed.

Let's take a look.


April 9, 2025

Parasound HCA-1206 Multi Channel Amplifier, Optimized For Stereo Only

This Parasound HCA-1206 is a multi-channel amplifier that intended for home theater audio setup.

No wonder this amplifier has 6-channel identical amplifier in one chassis, together with the THX certified label, it delivers 120-watt power per channel.

This amplifier is my fresh catch not long time ago after I got the Parasound DAC-1000 before. The condition is like new and I was thinking that this amplifier would be a match pair with my DAC since they are built at the same year.

And I was right! This amplifier is sound wonderful. It really matching with the DAC in term of the style and sound.

That is why, in this post, I will make this multi-channel amplifier optimized for use in the stereo system only.