[Mag]

Found these in my Audio Room so I thought I would give 'em a try. Plugged 'em into my portable bluetooth headphone amp and initially they played louder than my Sony MDR V600's. Adjusted the volume down I like 'em they sound good, don't detect distortion, clear, with good bass & treble. Definitely will be using often while at my desk.
  These date back to 1990 where I probably used 'em with a Walkman.

[Mag]

Equalizer settings I like best at the moment for these headphones.

[Rocket]

Hi Mag,

Excellent! Enjoy listening to your headphones .

Cheers Rod

[Mag]

Conclusion: These headphones failed to produce articulate bass to my liking. Only by cutting the 125 hz frequencies almost entirely did the bass become articulate to my ears. With the bass adjusted, I also use of a surround effect and the bass accentuator do I find these headphones likable and comparable in sound quality to my Yamaha earbuds and the Sony MDR V600.

[FullRangeMan]

I have a MDR-CD6 and it also have poor bass and treble are hot, but it work nice to listen solo voices as talk due sensitivity are over 100dB.