The product is discontinued. Please find below for alternative products.
the mackie hm-800 is a rack-mountable, 8-channel h more info
ha4 portable 4-channel headphone amplifier ideal f more info
Nordost Blue Heaven Headphone Cables more info               
apogee groove is the best portable usb dac and hea more info
speaker switch box 2 ways stereo speaker selector more info
presonus hp60 - rack mount 6-channel headphone mix more info
icon pro audio reaamp 4 channel headphone amplifie more info
alctron hp400v2 12-channel headphone amplifier the more info
      
*all cables 2 metre* heimdall 2 headphone cable th more info
bass traveler is a portable headphone amplifier wi more info
polsen hma-41 4-channel stereo headphone amplifier more info
the s-phone is a versatile single rack space four more info
alctron 8 channel studio headphone amplifier with more info
Nordost Heimdall 2 Headphone Cable more info                 
the head box s2 digital is a fully equipped deskto more info
jk audio remoteamp headphone/earpiece amplifier
more info  
the mackie hm-4 is a 4-way headphone amplifier des more info
alctron h8n 8-channel headphone amplifier the alct more info
PrimaLuna Evo 400 Power Amplifier more info                  
the head box s2 digital is a fully equipped deskto more info