• AMP: Neumann v475-2 (a/b/c) Dual Vintage summing amplifier (up to 100 inputs,based on techn.documentation from Neumann GmbH)
  • Max output gain: + 27db (summing network db loss restoration/amplification)
  • Max input gain: + 6dBm
  • Gain adjustment range:  +27dB (via front panel attenuator)
  • Standard level inputs:   Balanced, floating to ground
  • Standard level outputs: Balanced, floating to ground
  • Output impedance (load imp) : >300 ohm
  • Crosstalk attenuation: >110db from channel to channel
  • Frequency response: <+0/-0,25dB (20Hz to 20kHz: <+0/-0,5dB
  • Signal/ Noise rate: <-110dBqp
  • Extraneous signal level with V=0db : <-99dMrms/-94dBmrms with 1/30 sources
  • Input Transformers:  2xHaufe
  • Output Transformers: 2XHaufe
  • SUMMING Network: Discrete Stereo Balanced Solid State Summing network
  • Selected  Vishay Dale metal-film  resistors,
  • In/Out:   Balanced, floating to ground
  • Signal/ Noise rate: -110dB A-weighted
  • TRS connection wiring: (Tip:HOT/,Ring:COLD/Sleeve:GROUND)
  • Operation voltage: 21,6 - 28V/100mA
  • 100-240//24V 0.8-1.5A adapter + 2pin connector
  • Rackmounted (1Unit)
  • Laser engraved unique design(front/rear panel)
  • Rack Color: RAL BLACK or metal-green-blue
  • Unit Weight: 3.1Kg(7 lbs), double Packed (with adapter+cable) weight ca. 4,2kg(9 lbs)

  • The unit come with 110 - 240VAC/to/24VDC world wide adaptor/EU plug
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Neumann summing amp cards:

  • Neumann v475-2B (limited availability): FULLY DISCRETE ALL STYLE PURPOSES, TRANSPARENT, ENERGIC, CLEAN, HAUFE in/HAUFE out X-FORMERS
  • Neumann v475-2C:(limited availability) FULLY DISCRETE ALL STYLE PURPOSES, TRANSPARENT, CLEAN, HAUFE in/HAUFE out X-FORMERS
  • Neumann v475-2A (limited availability): FULLY DISCRETE  REALLY VINTAGE SOUND. HAUFE in/HAUFE out X-FORMERS
           EXCELLENT FOR: acoustic, classical, jazz, blues, blues-rock, classic-rock, folk-rock, country, ballad, bluegrass etc.

  • The extremely high level handling of this transformer makes it useful as a line level input AND output in addition to being one of the best sounding  input transformers ever. The Haufe audio transformers used in some of the finest vintage high fidelity and professional german and european audio equipment, including Telefunken/Siemens/TAB/ recording consoles, Klangfilm theater equipment, etc.
  • The (Neumann/Filtek/Lawo or Tab/Telefunken) dual junction amplifier contains two(2) mutually independent  balanced audio frequency amplifiers designed for signal summation in high quality studio mixing desks. Special attention has been given in the design of the cards, to dependability and operational reliability, stability of the electrical parameters, good immunity to disturbance and crosstalk attenuation between the two (L/R) signal paths.
  • Fully balanced Solid State Discrete summing network. The components are tested and selected. (Vishay Dale resistors) Good quality components result  the correct and low noise operation. The summing network PCB is own development, and absolutly hand made. The front/rear panel design based on unique idea. Future order: Unique ideas, plans like: channel number, design(your name or studio name) connections (DB25, TRS etc.) please contact me, to make the most appropriate gear for your studio! (build time 5-10 working days) Please scroll down or click to order page.
          
No A/B comparison tests due to following reasons:
Every studio setups are different, different mixing strategy, different style, sound and production, can't reproduce Your studio environment,  your studio setup, your monitor type, sound, preamp, amp, gain adjustment, cable, and etc..etc...
The sound character is very personal, as producer/seller and summing builder I can not say more, sorry:) you can read about my work, from my reputation, based on numerous customer feedback on web. I do not want to use some marketing phrases, beautiful words about my gears....my customers are musicians, producers,  sound engineers, from home  to big famous pro studios, experts like You, so you can read more below:

CUSTOMER FEEDBACK with gear description and pictures

Or visit GEARSLUTZ to read numerous opinions since 2011

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designed and created by VintageMaker

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