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Recent content by m_t_c

  1. M

    Multi channel audio preamplifiers

    Currently we have National Instruments digitization system for real time data acquisition & streaming. Do we have a option to synchronize multiple preamplifiers devices and to use their digitized outputs real time?
  2. M

    Multi channel audio preamplifiers

    Hi, I am bothering you again with another 8-channel preamplifier rack i.e. TASCAM SERIES 8p Dyna microphone preamplifier with analog compressor . I have attached its manual here. In this manual, at page 9 &17 it talks about D-sub 25-pin connector for analog outputs and TRS jacks for Line...
  3. M

    Multi channel audio preamplifiers

    Hi all A guy from another forum has suggested my Behringer "ULTRAGAIN DIGITAL ADA8200" 8-channel microphone preamplifier. I have attached its data sheet here. Kindly help me whether this module will meet my requirement of independent preamplified outputs? Thanks
  4. M

    Multi channel audio preamplifiers

    During search on net, i came across dBx profession audio preamplifier "TR1616". Its manual is attached with this post. Its manual, says that it has 16 analog IOs. From this what i understand is that it has 16 independent analog inputs with which i can connect 16 transducers and it has 16...
  5. M

    Multi channel audio preamplifiers

    Thanks for reply. The acoustic transducers operates in 5 KHz to 13 KHz frequency range and act as transreceiver i.e. both transmit and receive. Each transducer has input impedance of 500 Ohm. Each transducer can handle upto 330 Vrms but we know we are not getting any COTs solution in reasonable...
  6. M

    Multi channel audio preamplifiers

    Hi all We are planning to develop an experimental test setup for 32-channel acoustic transducers array and for that purpose, we require 32 channel Power Amplifiers (PAs) and Preamplifiers available in COTs. We need to simultaneously drive 32 transducers using PAs and similarly simultaneously...
  7. M

    Electronic noise in audio preamplifiers

    Thanks. I will try them 1605018893 Do i need to introduce inductor only in positive supply line or in ground line also? Should i connect capacitor b/w + and - supply terminal of SBC? Thanks
  8. M

    Electronic noise in audio preamplifiers

    Hi all I am driving a preamplifier in frequency range of 3 KHz to 40 KHz with 60 dB Gain with 12V DC Power Supply (R&S bench power supply). The noise floor at preamplifier output observed on oscilloscope is around -60dBV (in frequency range of 3 KHz to 40 KHz) when input is being short...
  9. M

    Driving acoustic transducers with commercial audio power amplifiers

    Hi If we take example of D1650 PA, it has specifications of 50W across 8 Ohm load i.e. around 20 Vrms across 8 Ohm load. 1/100 of rated power means 0.5W across 500 Ohm load i.e. 15.8 Vrms across 500 Ohm impedance transducer. Am i correct in my calculations?
  10. M

    Driving acoustic transducers with commercial audio power amplifiers

    Hi all I want to drive 16-channel low frequency acoustic transducer array using commercially available audio power amplifiers. The input impedance of single transducer varies from 500 Ohm to 700 Ohm at 8KHz. The two commercially available 16 channel models i searched are "D1650 Digital...
  11. M

    Headphone with Lemo FFP.2S.310.CLAC42 connector

    Hi all I am searching headphone with a specific connector type "Lemo FFP.2S.310.CLAC42" . I also need to know how audio signals from/to headphone are connected on this Lemo 10-pin connector? If anyone has information about such product please share with me? Regards
  12. M

    Digital communication over AWG18 cable

    The signal cable is Flexible 150 Strands 0.08mm of Tinned copper wire having impedance of 20m ohm/meter. Currently i have interface ADC with a FPGA to store data as well as to generate control signals. Now, how to proceed further for data transfer over 500m cable was my initial query.
  13. M

    Digital communication over AWG18 cable

    Hi Klaus What more information i needed to mention plz? I have not implemented any protocol yet. Currently, i am just searching the way to transfer ADC output over 500m cable (AWG 18 pair).
  14. M

    Digital communication over AWG18 cable

    Thanks for help. If data is being digitized using 16-bit ADC operating at around 100 ksamples/s, would RS422 be able to handle this data rate over 500m cable or i need to reduce sampling rate? Thanks & Regards 1595051045 Thanks for help. Currently i am using 16-bit ADC to digitize data at 100...
  15. M

    Digital communication over AWG18 cable

    Yes, but there is a possibility to use two wires (each 18 AWG) also., Moreover, solution is needed to be very compact. Are there any commercial ICs available for this purpose?

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