A couple of mods to help give tighter bass to your sony mdr-v700dj DJ headphones

I have always been a fan of sony products and love the look and feel of the MDR-V700DJ Headphones. Many of my friends swear by them even if they tend to crack around the hinges if you abuse them too much. Personally even though I am impressed with bass extension ( down to something like 5Htz ) I find the mid bass a bit overpowering and flabby. If you are mixing an already bass filled track it can overwhelm the vocals a bit and muddy the rest of the sound.

After a lot of experimenting I have modded a pair of sony V700s to give tighter bass and a more balanced sound whilst keeping the warm detailed sound the V700DJ headphones are renowned for.

Please bare in mind that you will invalidate the warranty on your cans by modifying them ...... But then again I believe that If you can't tweak you don't really own it.

This mod will work on real ones and the good fakes!!

Right.... Lets go

Be careful when you open the headphones or you may pull the thin wires off driver. If you are unfortunate enough to do that .... fear not. Just use a very hot soldering iron to mealt some of the lacquer on the cable and re solder it back on. You see in this pic I have taken the silver bit off as well. You don't need to do this I was just being nosy.

You will see a small hole circled in red here. This is the bass port of the driver. Reducing the size of this whole will reduce the level of bass by restricting the airflow between the driver and the resonating chamber. It will also alter the frequency response of the phones do they will no longer drop so low. Keep in mind that the factory fresh ones go well below human hearing range so it should be safe to shave a bit off.

Here you can see I have reduced the hole by using some thick masking tape. To get the home nice and even on both sides of the headphones I used a jewlers screwdriver to make the hole. Make sure you make the hole before you stick it on or you may puncher the fragile diaphragm inside the driver. Make sure you get a good seal all round. You may want to experiment with the size to tune it to your own preferred sound.

I also Filled the cap with some sound absorbing foam to help tighten up the bass a bit. The change is quite subtle but noticeable none the less. If you like lots of bass but just want to reduce the flabbyness of the sonys try this mod on it's own. I used a chunk from a soundproofing foam tile but you could use kapok or cotton wool.