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2U Rack 10-Input 2-BUS 4-Insert Summing Mixer

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Sub Group passive summing for Multi–Bus Mixing

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2U Rack 10-Input 2-BUS 4-Insert Summing Mixer – for the Best Analog Mixing and Mastering in Pro and Home Studios. The multi-bus compression sub-group passive summing technique is a game-changer for mixing engineers. The ability to process different elements of a mix separately and then sum them back together allows for greater control over the final sound.

A/B SEND (possible options):
DBX 160x Compressor (stereo pair)
Neve 542 Tape Simulator (stereo pair)
Thermionic Culture Culture Vulture
SP303 (Stereo Effects Processor)
Kush Audio Electra (Stereo EQ)
Master Inserts (possible options):
Louder Than Liftoff Silver Bullet (Stereo Preamp)
Hendyamps Michelangelo (Stereo Tube EQ)
Hendyamps Pollock (Stereo Optical Compressor)
Neve 542 Stereo Tape Simulator
TK Audio TK-Lizer (Stereo EQ)

Here’s a basic example: Arrange the tracks logically and group them into 4 buses:

  • SUB Group 1: Drums, percussion, and bass
  • SUB Group 2: Synthesizers and guitars
  • SUB Group 3: Lead vocals
  • SUB Group 4: Background vocals

Customer studio setup:
MPC 2500 *OR* UAD Apollo 8
RSE LTM-8 (Line to Mic level Converter)
x2 Hairball Audio Lola
x2 AML 1073
x2 RSE PC502
x2 Cranborne Camden 500
x4 SSL style Preamps
x2 Capi v26

AUX IN = Line Input / Summing mixer

DIR+BYPASS: Choose the desired input then route to the Master Out + Bypass = Mute all other summing inputs (input can be freely selected).

STM – Stereo to Mono Switch: Gives a stable Real Analog Mono Base for key elements like Kick, Bass, Main Vox, and Snare. Save digital channels and enhance separation with a simple switch, achieving a centered mono signal for hard-panned L/R inputs. Easily toggle for stereo instruments or maintain a fully stereo mix with panning options from your DAW.

Master Insert Send Return Switches: Enables sending the master stereo L/R signal to external processors like EQ, compressor, or limiter, or a Preamp like Focusrite ISA and then returning it to the master output for printing or recording. The ‘Master SND/RET’ is placed before the master out, with 100% of the signal routed to the send.

The system requires two stereo switches for signal isolation and control: The first switch enables sending to external processors (routes the master to SND). The second switch enables the return from external processors (routes the return to the master out).

Variable Headroom Gain Switch: It provides a wide gain-volume range for different applications, offers gain stages between various microphone preamps or DAW interface inputs, and accommodates various source inputs, such as synthesizers or DAWs. Placed after passive SUM BUS (passive mixer) determines main out (total) gain reduction – for different (pre amps) applications – gain stage – volume range. You have a great opportunity to experiment with different gain reductions and determine what sounds better for your mix: 1. Whether it’s with fewer input signals and more amplification. 2. Or the other way around, with more signals and less amplification. Benefits: You can overdrive the summing inputs with different gains to achieve more saturation and warm harmonics.

Frequency Response (Passive Section) +0, -0.1dB from 10Hz to 30kHz
Maximum level > +28dBu • Noise floor < -94.5dBu 22Hz-22kHz bandwidth
THD+N < 0.004% • IMD < 0.004%
Crosstalk rejection (Passive Section) > 110dB

Do not find your desired gear?  Ask to build Yours!

You can get as many channels and options as you want, so let’s build your gear!

Build time: 22 Working Weekdays after cleared payment

Selected Studio grade VISHAY DALE military metal-film resistors
In/Out: Stereo Balanced Discrete path
Insertion input resistance: -15dB / -20dB / -25dB (order)
Output impedance 600 -1k ohms balanced
Frequency response: 0-500Khz
Crosstalk 1Khz: -95dB
Signal to Noise rate (SNR): -110dB
TRS wiring: (Tip:HOT/,Ring:COLD/Sleeve:GROUND)
Pure hand made! Hand wired and tested point-to-point!
Laser engraved massive aluminium alloy box

SOUND CARD?

UAD Apollo, Apogee, Arturia, Antelope, Behringer, Focusrite, M-Audio, Motu, PreSonus, Prism, RME, Roland, SSL, Steinberg, Tascam, External Preamp – let me know, OTHER – let me know

VARIABLE HEADROOM GAIN SWITCH

-6/-16dB, -10/-20dB, -15/-25dB, -20/-30dB

OUTBOARD HARDWARE INSERT

PREAMP – type?, COMPRESSOR – type?, LIMITER – type?, CHANNEL STRIP – type?, EQUALIZER – type?, EFFECT PROCESSOR – type?, OTHER – let me know

CUSTOM NAME?

YES (let me know), NO THANKS

BUILD TIME

15 WORKING DAYS

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