Audio 11/2012, page 32-41
Title: Keep a cool head
Author: Christine Tantschinez
Tested: 8 different hi-fi headphones
(beyerdynamic, Denon, Harman, Logic3, Marshall, Pro-Ject, Sennheiser, Tivoli)
Faithfully translated from the original German articles/test reports
Custom One Pro: Price/performance ratio: Very good!
Do-It-Yourself: The size of the bass reflex opening is variable and defines the bass intensity. [...] Slide controls (...) define the bass tuning of the closed headphone with four different pre-sets. This works impressively well.
Bass for every taste, natural voices, good dynamic
As if using a studio headphone, you are close to the action with beyerdynamic. (...) Voices and instruments sound natural without artificial gimmickry