Pros: Clear and accurate sound, good sound isolation, built to last forever
Cons: Utilitarian design will not win any fashion awards
The German Maestro GMP 8.35 D (and it's higher impedance relation the German Maestro GMP 8.300 D) are without doubt the toughest headphones I have come across. German Maestro call them "nearly indistructable" and I agree!
Sound quality is very nicely balanced. Bass response is rich, with accurate and precise trebles. The GMP 8.35 D and 8.300D are both serious audio monitoring tools that are refined and insightful.
This is a reference quality headphone that is suitable for studio, home Hi-Fi or portable applications. At a push you could hook up the relatively low impedance GMP 8.35 D to a portable audio player and take them out on the street. If you have a decent headphone amplifier then we would recommend the GMP 8.300 D.
The closed back design keeps you well isolated, ensuring a minimum of sound leakage in or out of the cups - as you would expect from a monitor headphone. The ear cups fit comfortably and the headband keeps the headphones securely on your head. As with all closed back designs you will need to vent the earcups every so often to keep your ears cool.
The GMP 8.35 D is sturdily made and will survive the the harshest environments (they look and feel military grade). The headband is made from a band of steel and the earcups are made from a lightweight PE material that will withstand impact.
Built to a very high specification the 8.35 D and GMP 8.300 D will last forever and sound superb. Not everyone will like the no compromise, utilitarian design, but I rather like it!