Fegefeuer
Headphoneus Supremus
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- Mar 17, 2011
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Update February 26th 2021:
US5 and US5 Pro will be released with pentaconn/4.4mm output. Both are the same amps (US4+) now except being different on the volume control.
Review by Project86: https://www.head-fi.org/threads/rev...r-includes-large-high-end-amp-roundup.886668/
this is all early info I gathered, can't go into a lot of details because I don't know them yet. All the weeks until the Munich High End Show will reveal more details and info about these amps until we'll get the full picture. I'll keep this thread updated
US4+ and US4 are flagship headphones amps, and to each other basically aequivalent as the Violectric V281 is to the V280. If you know both you know what to expect in terms of what they offer in features, however in performance and quality these amps will take everything to another level, thus they will leave the violectric sphere and go under the name "Niimbus".
US4+ front
US4+ back
US4 front
US4 back
Internals: white PCB defines the US amps and upcoming DACs
US4+:
-one version/edition, no options, every US4+ will have the same features and performance
-remote included
-one 4-PIN XLR Headphone Out and 2x6,3mm, open to a Pentaconn connection but not likely
-NO Digi Inputs anymore Instead you will find 1xXLR, 2xRCA inputs (1 on the US4) and 1xXLR/1xRCA output
-reed relais volume control, 256 steps@0,4db (bonus: less noise than the V281's relais option)
-Balance control is back (remember V281)
-protection features: delayed power-on, instant cutoff, DC protection, Overload protection, Temperature monitoring and safe shutdown
-pregain in 7 steps: -15db, -12db, -6db, 0db, +6, +12, +18 dB
-about 12db less noise than the V281 under maximum stability ((balanced)
-30V@600 Ohm
-2x25W Tor. Transformers, 52.800 uF filtering capacity through Nichikon caps
-coupling capacitors will be polypropylen caps only
The US4 has everything the US4+ has, except the following features:
-relais based volume control
-remote
-front panel buttons for switching inputs (inputs can be selected on the back)
-balance control
dimensions: 350mmx280mmx80mm (width, depth, height)
shipping will probably start early September 2018.
prices will be 5000€ inc. VAT for the US4+ and 4000€ for the US4
US5 and US5 Pro will be released with pentaconn/4.4mm output. Both are the same amps (US4+) now except being different on the volume control.
Review by Project86: https://www.head-fi.org/threads/rev...r-includes-large-high-end-amp-roundup.886668/
this is all early info I gathered, can't go into a lot of details because I don't know them yet. All the weeks until the Munich High End Show will reveal more details and info about these amps until we'll get the full picture. I'll keep this thread updated
US4+ and US4 are flagship headphones amps, and to each other basically aequivalent as the Violectric V281 is to the V280. If you know both you know what to expect in terms of what they offer in features, however in performance and quality these amps will take everything to another level, thus they will leave the violectric sphere and go under the name "Niimbus".
US4+ front
US4+ back
US4 front
US4 back
Internals: white PCB defines the US amps and upcoming DACs
US4 Volume Control
US4 Power LED
US4+ front and back shots
US4 Power LED
US4+ front and back shots
US4+:
-one version/edition, no options, every US4+ will have the same features and performance
-remote included
-one 4-PIN XLR Headphone Out and 2x6,3mm, open to a Pentaconn connection but not likely
-NO Digi Inputs anymore Instead you will find 1xXLR, 2xRCA inputs (1 on the US4) and 1xXLR/1xRCA output
-reed relais volume control, 256 steps@0,4db (bonus: less noise than the V281's relais option)
-Balance control is back (remember V281)
-protection features: delayed power-on, instant cutoff, DC protection, Overload protection, Temperature monitoring and safe shutdown
-pregain in 7 steps: -15db, -12db, -6db, 0db, +6, +12, +18 dB
-about 12db less noise than the V281 under maximum stability ((balanced)
-30V@600 Ohm
-2x25W Tor. Transformers, 52.800 uF filtering capacity through Nichikon caps
-coupling capacitors will be polypropylen caps only
The US4 has everything the US4+ has, except the following features:
-relais based volume control
-remote
-front panel buttons for switching inputs (inputs can be selected on the back)
-balance control
dimensions: 350mmx280mmx80mm (width, depth, height)
shipping will probably start early September 2018.
prices will be 5000€ inc. VAT for the US4+ and 4000€ for the US4
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