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Vintage reloaded.....legendary  x-former summing amps in new skin!
When mixing on a computer, many prefer to sum the tracks in the analog domain, which can result in more depth of field and a wider, more defined stereo image. The people who prefer analog summing, most would not use the word "clarity" to characterize what's better about it. I hear phrases like "more depth and separation," or "more rounded/warm low end," etc. It's really a personal preference thing, and probably driven to some extent by what you are used to hearing when you work.
The analog domain offers a number of great advantages compared to the simple "bounce-function" within your DAW.  While a digital system rounds off all values for level, pan, eq-ing and compression, analog technique operates with an infinitely high resolution, causing no rounding errors or digital distortions.
A sound engineer described as follows: the digital mixing is a mathematical summing, like 1+1=2 (exactly 2). Mix in analog domain :1+1=2,05 (because here the voltage is summed) + adding beneficial effects of transformers result the pleasant harmonics, rounds, transparency and more spatial depth. Of course, in analog, every system sounds different - in some cases significantly different. This can be good or not, depending on your perspective.

Mix in analog domain directly from your DAW without compromises!
  Why choose VM summing mixer?

  • Fully balanced solid state network & switching network from input to output.
  • Can be left "free" unconnected inputs 4-8-16 or more!
  • No thermal noise on passive mode due to custom-developed balanced summing network.
  • Absolutely repeatability DAW control: Volume Panorama, EQ, and effects sends of your mix from within the DAW, and send as many as 8 - 16 - 32 - 64 - 80! (or more) different tracks or submixes to Summing Mixer.
  • Can handle both balanced/unbalanced signal from synth like Moog, Nord, Yamaha etc.
  • Can handle large external instruments like samplers, tape machines, drummachines etc.
  • Can be fit to all brand of DAW interface like Digidesign 192, Avid HD I/O 16X16,Universal Audio, RME Fireface, Prism, Lynx Aurora, Apogee, Motu, Focusrite, Metric Halo, Steinberg MR816, and so on..
  • Can handle external signal processors eg. EQ, Compressor, Limiter, Multi Effects Processors like Massenburg, Drawmer S3, Lexicon, Alesis, Tube-Tech LCA2B, JoeMeek, FMR Audio RNC DBX, ART etc.
  • Can handle large number of external mic preamps like AMS Neve 1073,Aphex Channel, Great River, Avalon, Chandler Limited, Crane Song, SPL, Focusrite, Presonus, Midas, Summit Audio, ART Pro and so on...

  Wide Optional Flexibility

  • Can select number of INPUT and  OUTPUT for Your studio needs
  • Can choose input type - TRS or DB25 Tascam Standard Analog balanced
  • Can select OUTPUT number eg, 2xStereo out L/R (MAIN/MONITOR) 3xStereo out or more
  • Can select OUTPUT TYPE as XLR or TRS balanced
  • Can add maser out control by rotary switch (out1/out2/out1+2)
  • Can add Stereo to Mono option, and select number and dedicated CH"s
  • Can add Insert/SEND/Return option on master signal by Bypass switch or Auto switch (TRS)
  • Can add Insert/SEND/Return option to CH's inputs by Bypass/Return switch
  • Can add Direct OUT Bypass switch option to input CH1 (1L/2R) ON stage=MAIN/MONITOR/ OFF stage=ANALOG SUM
  • Can select enclosure type 1U, 2U, 3U Standard Rack RAL Black
  • Can choose front panel design or You can make plans for Your faceplate, or tell me about Your ideas, Concepts, attempt to bring out the best (need your approval before laser engrave)
  • Can Select the Power LED colour: Blue, Yellow, Green, Red
  • Can engrave Your name or Your Studio / Project name on faceplate
  • Can realize Your unique design by your plan

               Recommended for everyone who wants to try and expand the existing setup with an analog vintage summing box...
Analog Balanced  Solid State Summing Network....
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.


Active or passive summing?
Active Summing Mixer with INTERNAL AMP:  make up gain by internal discrete amp  like Neumann, Lawo, Filtek etc.

Passive Summing Mixer without/no INTERNAL AMP: make-up gain by Your external amp like Mic pre or DAW  interface / instrument / input etc.

2in1 Summing Mixer with both Active/Passive feature by: gain make-up by INTERNAL AMP(Neumann Lawo, Filtek) or EXTERNAL (preamp, DAW ins)

*Benefits: Different AMP = Different sound character/ wide tonal character by allowing you to choose your flavor of make-up gain.
   
Let's build your unique gear !
  • Differences between summing amp cards....recently asked questions...
  • Filtek DV1175:   NEUMANN FOLLOWER DISCRETE ALL STYLE PURPOSES, TRANSPARENT, HAUFE in/HAUFE out X-FORMERS

  • Lawo DV972:    FULLY DISCRETE ALL STYLE PURPOSES, TRANSPARENT, CLEAN, HAUFE in/PIKATRON out X-FORMERS

  • Lawo DV975:    FULLY DISCRETE ALL STYLE PURPOSES, TRANSPARENT, CLEAN, GENTLE SUBHARMONIC ENHANCE HAUFE/PIKATRON X-FORMERS

  • 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
           EXCELLENT FOR ALL STYLES

  • 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.

  • NE2OX A2E / A7E : Transformer based Amp with variable freq range  gain
          







           Choose your appropiate setup for your studio as:

  • 1. Number of Input CH - 1 STEREO CH  = LEFT IN + RIGHT IN (1-2)
           *on rear side marked as: [ CH1 - 1-2 ] where the 1 is Left / 2 is the Right input
           * eg. 8 STEREO CH = 16 BALANCED INPUT as 8L and 8 R





  • 2. Input type: TRS or DB25 Tascam standard balanced
               * TRS BALANCED / DB25 TASCAM STANDARD ANALOG (not AES/EBU)
       




  • 3. Number and type of Output CH:  TRS or XLR balanced
                                                                     1xStereo out L/R (MAIN)
                                                                     2xStereo out (MAIN / MONITOR)           
                                                                     3xStereo out (MAIN / MONITOR/VU METER)
           * passively splitted / hard wired / the master signal is the same on all outputs
      


  • 4. Stereo to mono option: enable to switch a stereo input CH to (two) separate mono centered inputs
           CH1 to 1-2 mono, CH2 to 3-4 mono, CH3 to 5-6 mono, CH4 to 7-8 mono and so on...
           OFF stage: works as standard stereo balanced inputs (CH1=L+R) with panorama control from DAW
           ON stage:  works as separate mono centered inputs without panorama  control.
           Routing from DAW: send out CH1 Left mono track (bass) to summing CH1 Left
                                 send out CH1 Right mono track (bassdrum) to summing CH1 Right
               * with STM(Stereo to mono) option can save a lot of DAW interface out
           **no need to waste precious stereo CH's for mono instruments like bass, sub bass, bassdrum etc.
           ***clarity of position in the stereo field (mono is true mono)

       


  • 5. Active/Passive option: (2 in 1) SWITCH OPTION!
           ACTIVE -   Use the legendary Haufe transformer based amp cards for make up gain!
           PASSIVE - Use your Mic Pre's or Line amplifier,  to get a  wide tonal character
           2in1 - both Active/Passive feature by Active/Passive switch option

       



  • 6. Insert/Return point option: for external gears like EQ, Comp, Limiter etc.
           a. AUTO SWITCH: the signal was non interrupted if nothing connected to insert point.
           b. BYPASS SWITCH on front panel:  select the signal route to master out/or/ to external gears

                 * ( the 100% of signal sent to insert point!)
             ** AUTO SWITCH - internally switched TRS balanced insert point
             *** with BYPASS option can compare the signal differences (eg. with compressor and without compressor)
               
       


Passive summing network = SEPARATION = "wide"  or 3D - deep effect come from summing network. The integrity of the stereo panorama is more defined, more separated, much more panorama positions. Best results panoroma positioning can make/set during analog SUMMING - mixing! There are no 0’s and 1’s but only voltages. These are complex sinusoidal voltages that include the harmonics and other elements. Many engineers consider this to add the “warm”, “in-depth” and nice separation sound you get from analog. (Emerson R. Maningo)


Active summing by amplification = SEPARATION (from passive summing) + WARM HARMONICS - during transformer/or/discrete OPAMP based VCA MAKE UP GAIN. (Neumann amp: Haufe /Pikatron xformers, or external your MicPreamp or Amp gain make up)

All analogue summing boxes sound different and it's important to find the sweet-spot when the level and subtle distortion is just about right, depending on the song and production. ITB has no sweet-spot and there's really no reward running the levels a bit too hot, on the contrary is even makes the mix sound worse.

Gain staging is like pulling the focus of a camera lens  

ANALOG SUMMING give the possibility to make the best sounding of Your music, by mixing and listening in ANALOG, all your stems from your DAW or SYNTH, DRUM MACHINE, SAMPLER etc  as original complex sinusoidal voltages that include the harmonics and other elements (SEPARATION and WARM)   "listen in analog what u mix"-  find the right place of your stems, make panorama and gain modifications in analog...than make up gain - hit the the sweet-spot when the level and subtle distortion is just about right by internal legendary Neumann or Lawo summing amps or other  external amp like your mic preamp or DAW INTERFACE MIC PRE/INSTRUMENT input, moreower insert to master chain by Insert/Send/Return Bypass option an external EQ, Comp, Limiter or other outboard gear for signal processing purposes... More mixing will help make your mixes better. Remember, You are the X- factor -  the summing box is a useful tool, in skilled hands can make the "Magic".

***The more channels you mix analog, the bigger the difference.  Also the more you do to them in the analog domain, the bigger the difference. You then perform only the summing in the analog domain. This enables you to maintain absolute repeatability from within your DAW. With vintage summing amps (like NeumannV475, Lawo etc) the summing bus become  a solid state active mixer. (GS forum)




Active or Passive sum? Or both 2in1 Active/Passive in one box? Benefits - Analog Mixing ...
PUGHOUSE STUDIOS

VINTAGEMAKER
designed by VintageMaker

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.






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