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270,118 members
149,907 posts
  • New
    Lab Gruppen
    Triber Moderator
    2021-11-03

    IPX Series
    bit.ly/Lab-Gruppen-IPX-Series

    The Lab Gruppen IPX Series Power Amplifiers with DSP and Mobile Apps are designed to serve our Live Portable Sound and Installed Sound Customers.

    From: $1,199.00

    #LabGruppen #IPX1200 #IPX2400 #IPXSeries #PowerAmplifiers

    read more...
    2 43
    • Lab Gruppen
      KlausZimmermann will the new software work with ipDs as well?
      also, will there be a 4800 version?
      tx!
      • November 19, 2021
    • Lab Gruppen
      Jean-BaptisteRo Hi. Will IPX support the telnet control (like IPD series) ?
      • Jan 23
  • New
    kbherrig
    Newcomer - Level 1
    2022-01-20

    Error light blinking 

    please help 


    View Video
    0 9
    • kbherrig
      Paul_Vannatto Page 5 of the manual explains the error light purpose. Check the input signals as well as the wordclock to make sure they are correct.
      • Jan 20
  • New
    Stevemaccal62
    Newcomer - Level 1
    2022-01-12

    My PMP500 seems to have developed a problem. When pwered up the unit comes on for a few seconds and then cuts out. It seems the internal fan is not coming on. I assume it may be more than replacing the fan but have no idea as I'm not an electrician.

    read more...
    0 4
    • Stevemaccal62
      WilliamR Hello, this sounds like a hardware issue that may need service. Please click on the Support link above and create a Tech support ticket and someone will contact you directly as soon as possible.
      • Jan 12
  • New
    thunderbpsounds
    Newcomer - Level 2
    2022-01-09

    I bought a spare input board for my 14000 amp direct from their parts dept. However I never used it because it was not the board that was giving trouble at the time. The amp started to give trouble again so I decided to put in the board. It never worked so they replaced it. The replaced one never work also so I ordered another through one of their repair agent. It never worked also. They advised me to ship the amp to one of their repair shops, saying it maybe another issue with it. The repairers told them that the input board is not compatible with the older model amps and it is for the newer models. They refused to take back the two boards and closed my case leaving me with two useless boards. Spending $4000 US for a amp and having these problems does not worth it. Better to buy chinese knockoffs because they help you with parts that can repair their amp.

    read more...
    0 4
    • thunderbpsounds
      Dale_M In hindsight it may have been better to have organise a non warranty repair with an official Lab Gruppen approved repair centre, if you still require assistance please go to the Support tab above and select Service so our team can advise you of your options.
      • Jan 12
    • thunderbpsounds
      thunderbpsounds

      The amp is at an approved centere in the USA and they are the ones that determine the input boards are not compatible with the older model 14000 amps and the parts department refused to take back the boards. I have two useless boards and a huge bill to repair the amp. That could have been resolved where the amp is used in the Caribbean had they sold me a compatible board in the first instance. If you update the board you suppose to know if it will work on older model amps.

      • Jan 12
  • New
    SpideyMan19622
    Newcomer - Level 1
    2022-01-12

    Hello!

    I just purchased a nx4-6000 amp. After hooking a stage monitor to it, it went into Protect Mode on all four channels. I unhooked all cables and followed the instructions to reset it, but it still won't do anything. The breaker in the back doesn't seem to have tripped or at least it won't reset. Any ideas.

    Thanks.

    read more...
    0 6
    • SpideyMan19622
      Nigel67 Hi SpideyMan19622. I am sorry to hear that your brand new NX4-6000 has failed straight away. It looks as though you have tried everything possible to get the unit out of the Protect Mode and it hasn't worked. If the unit is still under 30 days from purchase, you can go back to the shop that sold you the amplifier and request a DOA replacement. If older than that, still go back to the shop and they will get the amplifier repaired.
      • Jan 11
  • New
    Lab Gruppen
    Triber Moderator
    2021-12-01

    E Series
    bit.ly/Lab-Gruppen-E-Series

    Learn More: https://www.youtube.com/watch?v=xoIFBMcoZN8

    Amplifiers with Flexible Output Channels and Energy Star Certification for Installation Applications

    From: $2,399

    #LabGruppen #E204 #E404 #ESeries #PowerAmplifiers

    read more...
    0 23
  • New
    mtman
    Newcomer - Level 1
    2021-12-20

    anyone know of a product that you can carry one of these around in - thanks

    0 3
  • Gasper
    Contributor - Level 1
    2020-02-02

    Hi,

     

    I am new here. I would like to ask some technical question about new Lab Gruppen PDX3000 amp. It seems to be a perfect solution for my JBL4645Cs. First of all I would like to know what is the DAMPING FACTOR (aprox. up to 300Hz)?. For the input on XLRs I would like to connect it directly from the integrated amplifier from speaker terminal (high level to low level); I made some measurements and normally high level does not exceed 0,5V - how much volts can take XLR input on PDX3000?

     

    Thank you very much in advance.

     

    Kind regards,

     

    Gasper Jancigaj

    read more...
    0 381
    • Gasper
      AlexLane

      Hi Gasper,


       


      The following is a white paper published by Lab.gruppen detailing why we do not use Damping Factor in our specifications.


       


      Damping factor


      The damping factor is determined by the quotient of the speaker impedance and the output impedanceof the amplifier. To state the damping factor figure of an amplifier is meaningless, as the speakerimpedance’s varies with the frequency and the various types and brands of loudspeakers existing.The figures of the true damping factor are only valid for a specific amplifier/ loudspeakercombination. This fact gives one of the reasons why Lab.gruppen don’t publishes the damping factorfigures.The only figures that are relevant for amplifiers are the output Impedance figures. Most amplifiers onthe market only show low output impedance (or high damping factor) at low frequencies and high(er)at high frequencies. This is due to the improper design of the output network and/or frequencydependent feedback. Lab.gruppen design has the feature to have nearly constant impedance over theaudio frequency band with a value of 0.05 to 0.07 ohms (50-70 mohms) . This causes less coloration.Another feature of the power supply in the fP 2200 - fP 6400 (thanks to the stabilised power supply),is that the output impedance doesn't rise during clip situations. In most conventional amplifiers theimpedance rise 10 or l00 times during clip. That causes uncontrolled movements of the speaker-cone.The conclusion must be that the Lab.gruppen switch mode power supplies sound better or have betterdefinition, especially in the bass region, compared to conventional designs.


       


      Damping factor influences on active and passive frequency divided loudspeakers


      Another reason not to publish the damping factor is that it’s not relevant to the audio quality of the power amplifier. For example; a professional loudspeaker driver has a DC-resistance between 2 and 5ohms, which is connected in series with the driver in the equivalent circuit diagram of the driver. Inthis case, the damping factor has more to do with the speaker itself than the amplifier, as the speakerdriver is connected directly to the power amplifier just as in an actively divided system (see example below).In a passively divided speaker system the filter network circuit are placed between the power amplifierand the speaker driver. In this case, however, the filter impedance determines the damping factor ofthe speaker driver. The output impedance of the power amplifier can influence the characteristics ofthe filter response, but it’s not sure that a lower impedance (higher damping factor of the poweramplifier) will give a better response. A classical example is the tube amplifier, which has relativelyhigh output impedance and which gives a very good sonic result in most cases.


       


       


       


       


      I am not entirely sure I understand your question,  "For the input on XLRs I would like to connect it directly from the integrated amplifier from speaker terminal". Could you explain what you wish to do in a bit more detail please?


       


      The PDX inputs are Line Level, if you are using an appropriate audio source then it will be a line level output also. What are you planning on using to drive the input on the amplifier?


       
      • April 6, 2020
    • Gasper
      MrPaulDavidThomas I'd like to know how you get on with your JBL 4645C's. Alas the answer you got didn't really help as far as I can see :-(
      • December 7, 2021
  • New
    DanielThompson
    Contributor - Level 2
    2021-12-05

    Is there a recommended replacement fan for the NU3000?

    0 7
    • DanielThompson
      Nigel67 Hi DanielThompson. Our spares team will be able to advise you pricing and availability for a replacement fan. Please raise a ticket to them. This can be done by clicking on the support tab at the top of the page. A new window will open. Scroll down and click on the Spare Parts tab and submit a ticket. Or if you are looking at another manufacturers fan, the specification is usually written on the fan and you can measure its dimensions. Please make sure if you do go inside the unit that the power is disconnected from the unit. This will void any remaining warranty though.
      • December 5, 2021
  • New
    HeadPhoneAmp1
    Newcomer - Level 1
    2021-11-26

    I'm using a Behenger HA 8000 VA headphone mixing/distribution amp in a very tight space.

    Would there be any issues mounting it standing upright, on it's end with the channel moving upward?

    0 8
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