SUMMING MIXER FAQ

is a balanced mixer ?

  • Yes, its Fully balanced dual stereo from Input to Output.

  • The VintageMaker summing mixer circuit design is optimized to provide sufficient headroom to accommodate the signals from a large number of channels, as well as to maintain a sufficiently low noise floor.

Can I connect Unbalanced synth and drum machine ?

  • Of course!

  • Can handle both balanced/unbalanced signal from synth like Moog, Nord, Yamaha etc.

  • Can handle large external instruments like samplers, tape machines, drummachines etc.

daw interface soundcard type ?

  • Can fit to all brand of DAW interfaces 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..

Mic preamp type ?

  • Can fit to all brand of mic pre like Neve 1073, Aphex Channel, Great River, Avalon, Chandler Limited, Crane Song, SPL, Focusrite, Presonus, Midas, Summit Audio, ART Pro and so on…

  • DAW inteface  – soundcard mic preamps

i need expensive mic preamp for passive summing?

  • No, you don’t need expensive MicPres, by prior consultation the mixer will be designed for your DAW mic preamp or amp work range

  • please let me know about your DAW interface brand, type or external mic pre type dB (decibels) gain range

External gears like eq comp limiter ?

  • Can handle external signal processors like EQ, Compressor, Limiter, Multi Effects Processors like Massenburg, Drawmer S3, Lexicon, Alesis, Tube-Tech LCA2B, JoeMeek, FMR Audio RNC DBX, ART and so on

  • balanced and unbalanced compatible

I have only 8 ch out from daw - can i use 16 input mixer ?

  • Yes, you can!

  • You can leave free unconnected inputs without any issue!

  • No noise on unused mixer inputs!

  • There is not affect the stereo image!

  • Can be left “free” unconnected inputs 4 – 8 – 12 or more inputs! 

signal noise rate - snr

level controls and pan pots ?

  • Level controls and pan pots on the inputs = line mixer, not a summing sixer

  • Pan pot and level controls prevent the complete 100% accurate recall provided by simply opening a session in your DAW.

Can I use my DAW micpre inputs for gain makeup ?

  • Yes, you can, by prior consultation the mixer will be designed for your DAW mic preamp working range, so you can use your DAW interface micpres without any compromises.

Can I use my DAW line instrument inputs for gain makeup ?

  • Yes, you can, by prior consultation the mixer will be designed for your DAW instrument input working range, so you can use your DAW inputs without any compromises.

Why are the Vintage Maker summing mixers so much cheaper than all the other brands ?

 
  • VintageMaker is a small manufacture who deals directly with You without markups from distribution and retail channels.

  • VintageMaker use the same high grade components used by all the other manufacturers. There is no compromise there!

  • High quality components result the correct and low noise operation of the popular summing network designed / developed by Vintage Maker, therefore is the most liked summing solution since 2010!

Teq FAQ

What’s the 2 in 1 (two in one) Active Passive ?

It’s a dual mode summing mixer feature, like you have 2 type of mixers inside the box

  • this function enable to use different kind of mic preamp instead of internal amp

  • freely can use a completely different sounding amplifier for gain makeup

There are two ways to control by A/P switch:

  1. Active mode: gain makeup by inside amp Neumann/Filtek/Lawo/NE2OX

  2. Passive mode: gain makeup by Your external micpres or DAW amplifiers

Benefits: Different amp = Different sound character

More about – Active Passive Documentation and Diagrams

What's the Master Insert Send Return by switch ?

This function allows to SEND master signal to external processors like EQ, Comp, Limiter, then RETURN to master out (print / record)
  • allows to switch between processed or unprocessed signals (comparison purposes)
  • Master SND/RET placed before master out
  • 100% of the signal routed to SEND
  • 1st switch: enable Send to external
  • 2nd switch: enable Return from external

Why 2 switch instead of 1 switch for 2in1 option ?

 

Why two L/R volume controls ?

  • Simply because Neumann is a dual stereo amp
  • Neumann 2C/2B electronic circuit require 2 x stereo potentiometers/side
  • Neumann 2B and 2C is a DUAL STEREO summing amp, 1st one for Left,  2nd one for R side.
  • Easy to equally set both L/R side gain by 2 x Stereo pot 
  • see db step diagram 

Single (one) pot solution?

Troubleshooting

Signal loss - Wrong type D-SUB cable

Be sure to check that the cables you’re using are rated for analog audio use. Many cables look the same on the outside.

TASCAM developed the standard for multi-pin DB-25 cables:

  • Analog DB-25 Connectors (GOOD for summing)
  • Digital AES/EBU DB-25 Connectors (WRONG for summing)
  • Tascam pinouts

Be sure you’re using Analog DB-25 – not (AES/EBU digital)! 

AES/EBU pinout scheme follows the analog one closely. The original AES/EBU pinout was indeed based on the analog pinout, but using the first four balanced lines for AES/EBU in, and the last four balanced lines for AES/EBU out.

Always use Compatible cable with standard Analogue Tascam!

 

More about – Active Passive Documentation and Diagrams

Signal difference between L/R or no signal

Make sure your cables and connectors are wired correctly for balanced (or  unbalanced) signals, same for your patchbay or external processors, always make sure that the XLR  TRS D’SUB connectors are plugged correctly!

1. Exclude possible errors (the most common failure points)

  • faulty connector
  • faulty cable
  • improper soldering
  • faulty soldering points

Do a Simple Loop Back – Cable Test – Youtube

Test all your connectors in the signal chain:

  1. DAW — to — SUM cables
  2. SUM — to — DAW cables

2. Always use identical connection for L/R Stereo in or out:

  • Balanced (L/R) cable
  • or
  • Unbalanced (L/R) cable
It may cause signal loss:
  • unbalanced cable
  • unbalanced connector
  • poor contact cable
  • poor contact connector

Switch contact

Two position 12 pin toggle switch

  • Silver plated contacts of solid state switch prevent sticking 
  • Designed for more than 5000 switching cycles 

1. Exclude possible errors (the most common failure points)

  • faulty connector
  • faulty cable
  • improper soldering
  • faulty soldering points

2. switch 20-30 times fast and strong between 2 positions

Ground loops hum noise interference

The summing unit come by double ground shield isolation

  • Ground loops are a major cause of noise, hum, and interference in audio  and computer systems
  • You may also want to make sure all of the devices are physically plugged into the same electrical outlet. 
  • If you have some gear on one outlet and some on another, those may be on different legs of the electrical circuit and that might be causing the hum as well.

Most common causes of hum or other noise

  • wrong cable shield
  • ungrounded outlets for gear
  • potential difference between gears
  • improper cable grounding and isolation

Cable lengtht

The biggest downside to unbalanced cables is the distortion. The ground wire meant to protect the unbalanced cable can, at longer lengths of cable, actually act as an antenna or amplifier for surrounding noise. The hum from a nearby television or audio system could be picked up by the cable heard in your audio capture. As a general rule, this effect is only noticeable with cables beyond ~20 feet in length.

With balanced cables, you don’t get the same distortions, so they can be much longer without any detriment to your sound quality. That said, when the cord length is under 10 feet, unbalanced cables actually have a stronger signal than balanced cables.

 

Switch Click – Pop sound

By proper line level setting You can minimize the switching contact sound
 
Because of physics of solid state switch and resistor based attenuator –  may occur a minimal, negligible click sound.
That’s absolutely normal, when the solid state components creates switch contact between different resistance and impedance values.
 
Causes of click sound:
  • high  gained active monitors speakers
  • low level signal from (DAW) output
 
Solution: (controller or summing)
  • Increase DAW output gain level 
  • Decrease Monitor speaker levels

 

Close Menu