PreSonus HP4 Headphone Amplifier supplier promo Each filter comes with 3

Each filter comes with 3 audio outputs and 3 CV inputs with attenuator

seaming polyethylene sheeting

Base material: Cast iron

Uncompromising Precision

Bluetooth: Yes

PreSonus HP4 Headphone Amplifier supplier promo Each filter comes with 3HP4 4 channel headphone amplifier (1 3U). Small But Powerful Headphone Amp! The HP4 from PreSonus answers the project studio owner's needs for headphone distribution with professional specifications and more in a small package with an affordable price. The unit comes in a 1 3 rackspace chassis similar to the TubePre. The HP4 accepts balanced unbalanced inputs and outputs (1 4" TRS). The input can either be set to stereo or mono. The mono selector