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  1. fdg

    Violectric HPA V281 - Vorsprung durch Balanced

    ... it maybe your source, it may be your headphones, it maybe your cables, it maybe your ears. But chances are very low that it is the amp. Anyway, that is the reason for the balance control.
  2. fdg

    Violectric HPA V281 - Vorsprung durch Balanced

    Today we hit the 500.000 mark. Thank you all for your interest in our products. We will continue and work hard to not disapoint you.
  3. fdg

    Violectric HPA V280 - balanced headphone amp - impressions and discussion thread

    Ex works the unbalanced outputs from HPA V280 are set to 2 x stereo operation. But there are jumpers inside the amp to provide balanced operation for both ¼” phone jacks. Please see the attached pic from HPA V280. V280 open low res.jpg The 2 jumpers are close to the 4-pin XLR socket. "U"...
  4. fdg

    Niimbus Ultimate Series US4/US4+ Headphone Amps - by Lake People

    Just take a look at the manual which can be downloaded here US 4+ Manual 2018-en-2.pdf / US_4_Manual_2018-en-2.pdf In the technical data you can find the output impedance from the headphone outputs to be 0.1 Ohm unbalanced and 0.2 Ohm balanced. Cheers, Fried
  5. fdg

    Review: Niimbus Audio US4+ Statement Amplifier (includes large high-end amp roundup)

    to learn more please check the block circuitry of Niimbus HPA US 4+ US 4+ block circuit.JPG
  6. fdg

    Review: Niimbus Audio US4+ Statement Amplifier (includes large high-end amp roundup)

    @ rgs9200m Your questions: 1. OUTPUT GAIN: These switches control the level of the LINE OUTPUTS an have nothing to do with the headphone-amp section of HPA US 4+. These switches had also been part of V281, but internally. On US 4+ they are accessible from the outside. Reason:The Niimbus US 4+...
  7. fdg

    Niimbus Ultimate Series US4/US4+ Headphone Amps - by Lake People

    @ Arniesb You will have more attenuator travel on your V280 when you switch the Pre-Gain to -6 or -12 dB The technical improvements of Niimbus US 4 and US 4+ over the current Violectric models: Due to the fact that we managed to create a stable amp with a gain of -4 dB (+2 dB for balanced...
  8. fdg

    Niimbus Ultimate Series US4/US4+ Headphone Amps - by Lake People

    I apologize for the inconveniences with the remote control for Niimbus US 4+ and the missing manual in english. Both will be delivered ASAP when they are available. Meanwhile please see the software control of Niimbus US 4+ attached. Thank you, Fried US 4+ software-en.pdf
  9. fdg

    Review: Niimbus Audio US4+ Statement Amplifier (includes large high-end amp roundup)

    I apologize for the inconveniences with the remote control for Niimbus US 4+ and the missing manual in english. Both will be delivered ASAP when they are available. Meanwhile please see the software control of Niimbus US 4+ attached. Thank you, Fried US 4+ software-en.pdf
  10. fdg

    Niimbus Ultimate Series US4/US4+ Headphone Amps - by Lake People

    As you can see from the block circuitry, Niimbus US 4+ is able to receive unbalanced signals and output balanced and unbalanced signals on its headphone- and line outputs. Same is true for the balanced inputs. All this with maximum flexibility as the headphone rails and the line-out rails may...
  11. fdg

    Violectric HPA V281 - Vorsprung durch Balanced

    We are proud to annouce that our amps Niimbus US 4 and Niimbus US 4+ are finally ready. For more deteilas see https://www.head-fi.org/threads/niimbus-ultimate-series-us4-us4-headphone-amps-by-lake-people.876018/...
  12. fdg

    Review: Niimbus Audio US4+ Statement Amplifier (includes large high-end amp roundup)

    We are proud to annouce that our amps Niimbus US 4 and Niimbus US 4+ are finally ready. The first series had been shipped to our general distributor www.cma.audio The delays had been caused by the guys machining the front panels who shocked us with 14 weeks delivery time ... The first...
  13. fdg

    Niimbus Ultimate Series US4/US4+ Headphone Amps - by Lake People

    We are proud to annouce that our amps Niimbus US 4 and Niimbus US 4+ are finally ready. The first series had been shipped to our general distributor www.cma.audio The delays had been caused by the guys machining the front panels who shocked us with 14 weeks delivery time ... The first...
  14. fdg

    Niimbus Ultimate Series US4/US4+ Headphone Amps - by Lake People

    @llamaluv About dip-switches on the back. There are tons of items in the market not offering any gain adaption via dip-switches or by other measures. So a reasonable question to all other manufacturers would be: "Why don´t you employ such on your gear." Instead you are asking the guys who offer...
  15. fdg

    Can Lake People pre amp cause a fire?

    Funny review that. I would recommend reading the manual first and than compare. So Z would have known that on G109 there are 3 different gain settings, that the figures for the output power are per channel, that provisions are made so amp will not explode. But, if you connect a very sensitive...
  16. fdg

    Review: Niimbus Audio US4+ Statement Amplifier (includes large high-end amp roundup)

    No problem, as I can see you are from Germany. Just come by to have a listen. Konstanz is a nice place to be - although far from any other place in Germany. From October on there should be some dealers having the Niimbus line. Cheers, Fried
  17. fdg

    Violectric HPA V281 - Vorsprung durch Balanced

    @ 111MilesToGo ... and others who like to know what class our amps work, if it is A - A/B - B. Most SS amps work in class-A/B as this is a good measure to avoid zero-crossing distortions compared to class-B. In former times, when electronics had been not so good, class-A was "invented" to avoid...
  18. fdg

    Violectric HPA V281 - Vorsprung durch Balanced

    Normally the balance control is a potentiometer between the left and right channel. Most time it features a so called tap, a forth contact on the 50 % position. As the potentiometer is between the channels it will harm the crosstalk. This in mind we found another way to have a function similar...
  19. fdg

    Violectric HPA V281 - Vorsprung durch Balanced

    @ zhgutov (Dimitry) and the measurements. Crosstalk is always measured by every manufacturer with the volume potentiometer fully open (right or CW position). As a matter of facts and by design a potentiometer will drive the signal to high(er) impedance state – thus makes the signals more...
  20. fdg

    Niimbus Ultimate Series US4/US4+ Headphone Amps - by Lake People

    .... not at all - 10 white LEDs !!!
  21. fdg

    Violectric HPA V281 - Vorsprung durch Balanced

    For our opinion we developed with the amp design of V200 something hard to beat and hard to improve further. This is what we call the V200 class. The start is V200 with two amp sections for stereo operation. If you like to have some bells and whistles you may chose V220. All friends of balanced...
  22. fdg

    Violectric HPA V281 - Vorsprung durch Balanced

    About ground-lift and other jumpers. Decades ago we developed our system of ground-lift jumpers. This was based on our experiences with broadcasters and other large scale installations, some of them more, some less professional. If every item from all manufactures was made with a metal case and...
  23. fdg

    Violectric HPA V281 - Vorsprung durch Balanced

    Just for illustration, picture taken from Amazon https://www.amazon.com/SX-T-3-Balanced-Headphone-Cable-Adapter/dp/B01MYS8DG8 The above adapter is the best way to cook ANY balanced headphone amp. What happens: A true balanced amp has 4 amp sections, left inphase, left out of phase, right in...
  24. fdg

    Violectric HPA V281 - Vorsprung durch Balanced

    In the beginning we had the "B-series" Neutrik 4-pin connectors (look: http://www.neutrik.us/en-us/xlr/nc4fbh) on the front of HPA V281. These have partly a metal case and the look and feel is better than the "A-series". However, we always had to extract the locking mechanism as it would not fit...
  25. fdg

    Violectric HPA V281 - Vorsprung durch Balanced

    DAT (Digital Audio Tool) RS 05 is a unit which is available since middle of 2017. Basically DAT RS 05 is a sample rate converter with an excellent internal clock base (some pico-seconds phase jitter) or an outstanding internal clock base (some femto-seconds jitter) as an option. Jitter...
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