October 26, 2018

Disassembly TP-Link HA 100 Bluetooth Audio Receiver

Lately I am using this tiny, non audiophile device as my primary source in car audio. As an excuse, my current car audio setup is not an audiophile either. It is just a Sony CDX-CA900 with the OEM speakers. I know no one loves Bluetooth in term of sound quality, but for friendly use and neat installation especially in car, this Bluetooth is a great solution.

October 20, 2018

Building 2 Way SB Acoustic Speakers (Part 5) The Crossover Upgrade

I shall repeat that the result of this speaker box built is very good.

The cutting for each drivers holes are precise, so I just need to put all in placed. Previously I have shared the  assembly process which is very easy. I just install the cables from the driver to the crossover and to the input terminal.

So in this post, I will do some upgrade on the crossover components. Check this out.


October 13, 2018

Building 2 Way SB Acoustic Speakers (Part 4) The Assembly Process

To make myself a productive person, this morning I woke up early and start to work on this new speaker project. Perhaps this is an excuse for me not to slept well last night. I am actually not in patient to have an audition for this new speakers.

So in this post, I will share the assembly process of this 2 way SB Acoustic speaker system.


October 12, 2018

Building 2 Way SB Acoustic Speakers (Part 3) The Workshop

I am not a carpenter, nor the speaker box builder. In the past, I usually bought a readily available box. It cannot customized based on my personal preference and the quality are not consistent.

My single driver full range speaker here is my first experience using more professional speakers box builder. The result is blowing my mind. It is of course more expensive, but the result is far beyond my imagination.

With the owner permission, I can share his workshop and find out how those speakers are build here in this small house.


October 6, 2018

2nd Order Crossover Network Experiment For Car Audio

When I building multi way speaker system, I mostly using the 2nd order crossover for the starting point. Then, one by one I experimenting to the higher order cross over slope to get the better result from each drivers.

The tweeter installation previously on my car here is only using the first order cross-over for both drivers. This is by only using 1 capacitor for the tweeter and 1 inductor for the mid-range. I know at that time I had a short time installation but I will revised it in today upgrade. I will rebuild the cross-over and upgrade it to the 2nd order slope.


October 5, 2018

Building 2 Way SB Acoustic Speakers (Part 2) The Crossover Network

In this post I will building the crossover network for this SB Acoustic speaker project.

Building a crossover network is not an easy job. Especially to determined the frequency cutting point and slope, then a proper measurement should be done correctly. Each crossover's components value is also very critical, especially when designing for the high pass filter. Then, when it is finished, it require to test by listening the result. On many cases, the sound need to be corrected by changing the components value by trial and error.

This is a long project if I start from the scratch. So to make it more simple, I was searching any information related to the driver that I am using in this project. I found this blog, which this gentlemen is very helpful to give many information related to his speakers project using SB Acoustic drivers. His project is called LARK. My speakers box dimension almost exactly the same to his drawing.

Then for the crossover schematic, after I did a comparation between his schematic to the others, I found that this SB Acoustic official web is more suitable for my speaker project.

So I build this crossover network based on that websites as the basic idea.