Behringer Mini Unit Miniamp
This is a useful four-channel headphone preamp that sports some good features, such as dual outputs for headphones, which actually allows for up to eight pairs of cans to be connected.
There's also an output that allows cascading of several headphone amplifiers, making this a good start if you're requiring a cost-effective solution.
Dual outputs for headphones. Output for cascading of several headphone amplifiers. Cost Effective.
No quibbles at this price!
Good value miniamp with useful features.