Recently I purchased the Monoprice Retro along with the Monolith THX AAA 788; I needed something to help me qualify for $125 off coupon
I had viewed and read high praise about the Retros but to my ears the hype wasn’t confirmed. I made several videos and did a review, links below. In my review I was very critical of the stock form but did say I would modify the Retros to my liking.
Well today I decided to start the modding process. This is my first true modding attempt with adding dampening foam, all others prior were removing pads and the like. I first removed the stock pads, removed the drivers from the cups and then added thin craft foam to the inside of the undamped cups. I also added foam to the magnet side of the driver plate. I then reattached the drivers and put 3 pieces of one-ply toilet paper and a very thin felt layer on top of the driver. I then taped the Hifiman pad rings on top to secure the paper and felt. The final touch was the Dekoni sheepskin pads. I still need to improve the headband strap, have a comfort strap coming next week, and also tighten the clamp slightly.
The improvements are surprising and amazingly good. The bass is fantastically deep with good quality and quantity. The mids are no longer recessed in a cave but have a full body, romantic lushness and the treble is smoother and less sharp. The soundstage did take a slight hit but not enough to make the headphones clustered. The details are still present. The modifications turned the Retro from an uncomfortable bass lacking, thin, tinny treble monster to a darker, warmer, detailed and fun headphone. I now have a Monoprice Retro that I can listen to and enjoy.
I can now recommend the Monoprice Retro. If you’re interested in hearing my creation, send me a private message and we can discuss a loan.