pwrdbykyank
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- Nov 19, 2009
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It's an interesting modification but I'd bet the rectangular area facing the back cover, and through which those slits are allowing sound into from the front speaker are actually part of a more highly engineered acoustic suspension design to enhance the bass response of the speaker and/or assist in providing a more flat frequency response, as well as to reduce distortion due to out of phase sounds (front facing waves versus rearward), from muddying up the sound.
In vintage audio equipment you would most often find the speaker(s) mounted in an open air configuration where the back of the speaker(s) is/are simply free to resonate through the back of the cabinet, usually through a series of ventilation holes like would be found on large console TVs or speaker cabinets of guitar amplifiers. Around the late 1950s is when manufacturers began to fully enclosed their speakers to capture and minimize that out of phase distortion and to enhance the bass response.
Just like the large ovalized compartment or open area shown in the front of the phone where the moderator shows the slots, any sealed or semi-sealed compartment in these phones which sits behind or along side the speaker transducer and is essentially connected via an air coupling channel is almost certainly intended to increase volume, reduce distortion and/or enhance audio quality.
By "modding" the back cover to allow the sound waves, which are normally otherwise trapped and reflected or reverberated back to the rear of the speaker transducer to instead "escape" out the back cover, it will most definitely have an impact on frequency response, audio quality and volume coming from the front.
I'll leave mine as is for now, thank you... But it is interesting to see what some people can and will do given the need, desire, ingenuity and access to high tech equipment such as a laser cutting apparatus.
Sent from my XT1585 using Tapatalk
Opening the back has made the sound more sharp now and differs from what a regular one is.....
Mike, I did a quick Google search and came up with not only the eBay ones you mentioned but also online retailers. The search I used filtered out eBay, specified "Droid Turbo 2" and then refined to just "shopping", and it gave me the following results...Do you know where I can buy one of those back covers? Not necessarily one like yours with the holes in it, just a stock one.
Mine is a gray/black diamond look that is slippery. I'd like something different, and I don't want to buy a case.
I see a few on eBay from China, but I don't buy much on eBay anymore these days. Maybe I'll need to if I want one of these.
-Mike
Thanks for the suggestions FoxKat, Ill look into it. Also for the back covers, yea you can easily find them many places online, and they are listed on ebay as well.
Yea the screen/filter or dust barrier I took off an old blackberry speaker and attached it to the back plate where the holes are. Hopefully that will do the trick.
Agreed, however the addition of the filter on the inside back cover will keep dust and such out of the innards of the phone so it's still a good mod.Yea, I guess it already has one over the speaker itself.