Pioneer CS-5070 Bookshelf speakers.

[kaushama]

I have bought cheapo CS5070 for my room speakers as I am on a budget and because they are full range.

Woofer 20cm cone type

Midrange 7.7cm cone type

Tweeter 6.6cm cone type

Enclosure Rear duct bass-reflex


Can I improve it by upgrading parts in crossover and replacing drivers with Dayton Reference range speakers? Is it worth doing it?
Polyfill stuffing?
Any other audiophile drivers in UK market?
Any other suggestions are welome?

[Godzilla]

Some things are best left alone. Personally, I wouldn’t change a thing. I’d just sit back and enjoy the music coming from those boxes.

[edjosh23]

If you are thinking about purchasing drivers and crossover parts, save it for another project. For these I would try smaller modifications.

For example I'm sure that woofer could use some duct seal. Try puzzle coat and other mods that you can find information on from Planet10's website. Doing smaller modifications will be helpful for future products. If you find the T/S parameters for the drivers you can even start designing and building new boxes for them.

Good Luck,

Josh

[Geoff H]

I have to agree with Godzilla and Josh.

Just listen for some time, see if there's something that you don't like about them, then consider mods.

Replacing the drivers and crossovers means you are just using the cabinets, which could be the weakest component.

BTW, full range implies a single driver. These are a 3 way. Crossovers tend to be frowned upon here. I have seen "full range" on the back of Pioneers in the past, on 2 and 3 way systems.

Geoff.

[kaushama]

Those were my thought as well before I opened the damn thing. Holy CraP! The box isn't the weakest point!!



No cross-over! Crapo drivers! I lack the skills to build enclosures if I do new DIY!

Can I upgrade it or sell the damn thing and go for a better bookshelf??

[edjosh23]

That woofer can definetely use some duct seal. There should atleast be some caps on the mid and tweeter. Typically the cabinet is the weakest part, those drivers are not great, but you can spend money on drivers and XOs for another project. If you think you cannot build a cabinet, buy one from Parts Express or somewhere else. A simple cabinet is not the difficult to build. One problem with that cabinet is that the woofer and the midrange share the cabinet. In fact I think the tweeter may even be open back, which means it should have a dedicated section as well. You can keep the woofer running fullrange if you would like and let it roll of naturally. If I were you I would run some sine waves through them to see where their are peaks, this is where you need to limit drivers. Modify these, use these bookshelfs for learning more about speaker building and design, then try your own.

Josh