Pre Amplifier Specifications

  

            The Gain; and nothing but the Gain!

    The ultimate beginning of a signal's journey from vibration to electric current,    The "Neutralizer® "     by Multipointusa  A no compromise design Microphone Pre-amp,  when you want reference quality signal.   Whether it's for creating your own samples or just for outstanding signal characteristics.   There is no audible background noise, the signal seems to float in total silence, with total three dimensional response.   The signal path  has only the characteristics of the microphone  used, round and responsive very neutral sounding, in supporting the characteristics of the analog world while keeping at bay the noise and interference.   How is this possible;    

          

            15 segment "VU" meter         Gain       on/off  Power                          Gain

                   

                             in / out                       Power in filter         on/off 48V    Circuit Breaker       in / out

                                                                    Prototype for testing

Pre-amp specifications:

        Circuit:  Input voltage noise .9V/VHz. typ.   ( 1.2V/Hz.) Maximum  at card level output / totally balanced from input to output class "A" / phantom power  (48V) /  in /out connections XLR /  gain +4"db", headroom to +18"db" /   Multipoint -Jensen  input transformer,  large size, low ratio, nickel iron molybdenum core, to absolute  specifcations, continuous triple shield / balanced reference point / variable resistors  1%  / signal resisters .01% matched sets 5 p.p.m.ºC / 1% capacitors, polystyrene / Teflon circuit cards / four sided surface mount, triple ground plane / three dimensional sub-shield /  /  E.I.N. 20Hz. to 20KHz. unweighted, 150 ohm -146"dbu" /  SNR >120:db" / Crosstalk >120"dsb" / Dynamic Range >120"db" / C.M.R. 130"db" / P.S.R.R. 152"db" / 15 segment "VU" meter circuit  with l.e.d. output and clipping indicator l.e.d. /  knobs spun aluminum.   

      Power Supply : AC side /   Toroidal Transformer 3A / Triple shield / Four shielded filtered stages E.M.I. etc./ load reg. .02% / Ripple .1% / R.R.R. 96"db" / temp. stability 1% / therm. reg. .002% / line reg. .01% / Ref. voltage 1.25 volts / virtual ground reference point / output voltage tolerance 1% / resisters .1% / capacitors 1% /  D.C. side:    Four shielded filtered stages /  Line reg.   .005%/V  / Load reg.  .3% / Therm. reg. .01%/W  / R.M.S. output noise reg.  .001% /  Capacitance 100,000µf  Totally tuned voltage feed.  SNR >120"db" / T.H.D. >130"db" / T.H.D. vs. Frequency .00008% / Balanced regulator supply ratio /

These are no compromise designs, made for outstanding reproduction characteristics.  We have designed a pre-amp that has no characteristics of it's own, other than supporting the characteristics  of the microphone used in a positive "3D" representation.   The characteristics of the power supply are directly related to the quality of the pre-amp signal, resolution, depth of sound stage.  We recommend using our own  Multipointusa "Memory Cables"   to get the total response and fidelity of our pre-amp.

Two pre-amplifiers with power supply in one 19" rack mounted case....................$  2,499.00

Four pre-amplifiers with power supply in one 19" rack mounted case...................$  5,000.00

Two pre-amplifiers in/out with phantom power / power supply in 2U 19" rack mounted case  with eight (8) input balanced in mixer / stereo input analog CD / stereo input digital CDR / main mix out / headphone mix out / all input/output XLR balanced.             $ 5,500.00

When you want LARGER than LIFE  RESPONSE   it's The "Neutralizer®"