Skip to main content

Deep Clean Process Jamo Cornet 65II Speakers

Today update, I am still working at home. My office extend the working form home period until next week. I do keep positive thinking despite certain job cannot be done at home. But I guess it is quite efficient having everything done remotely and I am used to it. Imagine everyday I am driving to office takes 2 hours back and forth. While at home like this, those 2 hours can be use for something more useful. Like cleaning this 20 years old plus speakers? I bet yes I will do it.

This is Jamo 3 way speaker system. The model is Cornet 65II. It is produce around 1995 I guess. To be honest, this speaker condition is not bad. All in perfect condition because proper storage during the lay off. The only matters is the dust is everywhere.

This speaker is big enough. Not a bookshelf, not either a floor-standing. To make it sing perfectly, it require medium height speakers standing, so the speakers alignment will be correct to listener ears. But you see from the looks, this speaker is top notch building quality. In this more than 20 years, all the wood surface are still in good condition. This is the example the bottom of the speakers condition. The speaker feet not present there, it makes the surface scratch and having a lot of dirt.

Cleaning the speaker from the dust is only require the cleaning cloth soaked with warm water. Gently wipe all the surface and pay attention for the paper cone which can cause the dirt absorb to the paper itself if the cloth is too wet.

Look how dirty it is. Thankfully the glue that attach surround and the speaker cone still in perfect condition. This is the first things to do when you want to inspect the old speakers still in good condition or not.

Cleaning the tweeter need special attention. This is the most fragile drivers so wipe it very very gently.

Aaah, the broken dust cap that mostly get attention from kids fingers. That's how lovely having kids and speakers. Seriously, once your speakers get this mark, that means you automatically get the permission from "family finance minister" to buy the new one:)

After cleaning process done, look how beautiful this speaker is.



The next things to do is clean up the wood surface.

The remaining dirt that hard to remove by wiping up using the cloth are require the dull cutter to slice them up. This is the fast and easiest method.


Further detailing every corner of the speaker I am using a tooth brush.



The bottom speaker without feet will be facing this condition. The cracked wood surface.

I am using quick drying glue for attaching this surface.

This outside of the speakers already clean, but I want go further. All drivers should be remove for cleaning. Also this is the good time for check inside.

This European speaker using hex screw. This is quite standard for them. Like us in Asia, most of us using the Philips screw.

Not quite tidy for the internal cables.



The drivers are all in good shape and original.



I am using the cloth tape to secure the cables. This will make the cables tidy, yet reduce potential vibrating noise.





Once all driver clean and the cables inside tidy up, then I wrap back them up.





Not finished yet, there more things need attention. That is the speakers connector. Clean with electronic contact cleaner and using cotton bud will shine the copper terminal looks new again.



The last attention is on the speakers grill cloth which mostly detach from the frame. Simply using glue to attach them together.



I cleaned this speakers almost 2 days but in slow pace. I want clean it all in detail and it is rewarded by how this speakers looks now. Just like new! I like the cleaning process and I like to looking at them when they are such this clean condition.

Disclaimer: Any statement and photos in this article are not allowed to copy or publish without written permission from the writer. Any injury or loss from following tips in this article is not under writer responsibility.

Comments

Popular posts from this blog

OPA1622 Vs. OPA627 High Performance Op-amps Comparison

This op-amps comparison topic is actually boring, but at the same time, many of us still curious about what others think about it. The reason is simply because of the op-amps variation are hundreds and they are depends by the implementation. The op-amps are considerably cheap and an interchangeable electronic components but they are not built for the same function. So in this discussion, I will focus on the modern Vs. vintage high performance op-amps in the simple non-inverting pre-amplifier gain stage.

Vintage Multibit R2R DAC Tier List

At the very beginning of this year, I committed to explore the best multi-bit R2R DAC. This is simply because I have plenty of the resources (from broken old unit CD player of course) and ability to build them up. If you think this kind a recycle from old un-used unit to become something useful, than I should stated myself giving contribute for greener world:) After all DAC that I built in this year, I think it is better for me to list them up again in one single page like this. Then I will rank them up in a simple tier list. The reason for this, so you all know what my opinion about of those vintage multibit R2R DAC especially in the sound quality.

TDA1543 DAC Review In 2021

It is a fine day and as usual I am reading and searching online contents related to almost anything I like. During my search, I stop to the few online forum discuss about a simple DAC using TDA1543 DAC IC. The discussion about this DAC was about 3 years ago, and the latest was about a year ago. Quite new and overall discussion about this DAC sound quality mostly are positive. It is interesting topic anyway especially I was built this TDA1543 DAC long time ago in 2016. At that time, I combine this DAC with Tripath amplifier  here  and  here  before it sold in 2019. That is also my first DIY DAC and I am quite enjoyed this DAC so much, at that time. The background story about this, previously I was using Sony Playstation SCPH-1002 as my reference CD Player. The reason I moved to this TDA1543 DAC is because the CD optic inside the Playstation is wear out and I cannot find the replacement for it. I pretty remember the sound quality of this TDA1543 DAC is quite comparable...