Showing posts with label jbl 305. Show all posts
Showing posts with label jbl 305. Show all posts

This Week I Learned - 2017 Week 41


Last week post and something else from the archive.

Slow week. Too many pending stuff that needs my urgent attention and got sidetracked into firefighting some unplanned work.

So much I've learned regarding audio stuff. Some are hard lessons. First, active (or powered) and passive speaker have different features and usages. When you're getting a standalone DAC or DAC/Amplifier combo, make sure the DAC have enough output terminals. For example, passive speakers need two pairs of left and right output terminals where each pairs is channeled out to each speaker. Good comparison is the popular JBL LSR 305 and Pioneer SP-BS22-LR. See screenshots of the input terminals for each speaker.

The JBL LSR 305 only have two types of input, XLR and 6mm jack.


Meanwhile, the SP-BS22-LR have both positive and negative terminals. You will need to connect speaker wires to transfer the sound signal to both left and right speakers.




Second hard lesson. Not all amplifiers are created equally. Bookshelf and tower (floor-standing) speakers needs different output watts to produce optimal sound output.

After so many days, managed to finish Neil Gaiman's American Gods  book. Sadly, the TV series does not really live up to the book expectation (maybe due to limited budget?).

Use the `git stash` command correctly. Differentiate between `git pop` (apply and remove) and `git stash` (apply and keep in stash cache).

This Week I Learned - 2017 Week 39

Last week post or the old archive.


Picking up lots of audio related stuff. Interesting week indeed.

Building a audio system but worry that your spending will lead to a serious discussion with your significant other(s)? Pay an acceptable amount on your credit cards and the remaining amount by cash. The audio sales person suggested this "workaround" for all his client who worry about their spending being known to their significant other(s). Interesting indeed. On self-reflection, if you worry your spending will cause an issue with your significant others(s), then you should not even spend that amount of money.


Buying headphone but low on budget? Doesn't have a trained ears or the time to test through all available headphones? Get Superlux HD668B, definitely worth every cent of your money!

One interesting trend with audio shop in MY is the emerging of community oriented stores. Currently, Starpickers and E1 Personal Audio are the two good example of such type of stores. Chill environment and good place for local audiophile meetup.


Klipsch R-15PM powered speaker (also known as active speaker). Worth it? Not with a retail price of MYR 2600. Unless you have extra cash to burn, have (going to build) a vinyl records collection, and love a minimum setup (no need extra amplifier, receiver, or DAC) with different input sources (TV, PC, Bluetooth, and Phono). Suitable for neat freaks who like clean setup where you have a pairs of speakers which can connect to to any electronic devices that generate sounds. Furthermore, JBL LSR 305 is still a better choice, sound and money wise (you can get it from Massdrop around MYR 1500 inclusive of shipping).


Stoner Acoustics UD125 is a locally made DAC and headphone amplifier. Price is set around USD 85 or MYR330. While I'm tempted to get it and support our locally made product, is it worth the money?

As I learned by reading blog posts and watching videos on different DACs and amplifiers, the product is as good as the components. While there is no information on what brands of capacitor used, the key electronic components are (1) Savitech SA9037 USB Audio Processor. The audio chip. I can't find any information on this except there is another audio chip using model number SA9027. (2) Asashi Kasei Microdevices (AKM) AK4490 High Performance DAC. (3) Texas Instruments (TI) TPA6120A Dual Channel High Power Amplifier.


When comes to reviewing and modding the Nobsound MS-10D Tube Power Amplifier, this guy knowledge sharing and follow ups is simply epic. We need more producer rather than moocher in this world.


Why you shouldn't spend money on cheap amplifiers or DACs. Be careful SMSL stuff as it's notorious known for creating spark when plugged in. Just get Lexicon Alpha and JBL LSR305s.