| Content | The Heritage Audio MCM-20.4 is a rackmount analog summing mixer that delivers vintage-quality sonics along with sophisticated routing options to streamline your hybrid studio setup. The MCM-20.4 offers 16 input channels arranged into two subgroups of eight. Each channel features concentric pan and level controls plus a balanced insert and a mute switch. Each group has its own stereo fader and balanced insert point. Both stereo subgroups are passively summed into the master bus, which has its own balanced insert point and VU meters. Makeup gain is provided by a transformer-coupled, 1073-style Class A mic preamplifier with four transformers (two per channel). Four channels of pre/post-fader aux sends are provided: AUX 1 and 2 are mono; AUX 3 is stereo. Insert send points are always signal-present, giving them an alternative use as direct outputs for recording. Rear-panel connections are made via DB-25 connectors; except for the master bus, which has dedicated XLRs.
The best of both worlds
Done up in classic RAF blue-gray livery — complete with concentric pots and Marconi knobs — the Heritage Audio MCM-20.4 gives visual hints as to the sound lurking beneath the bonnet. Flavored by four transformers, that sound is decidedly vintage British, although Heritage has taken pains to improve crosstalk and self-noise specs from those of the vintage designs. The smart-summing topology employed in the company's MCM series mixers delivers impressive headroom and low noise for a 20 channel, vintage-topology mixer. Sweetwater's advice: If you want to smoothly integrate analog gear — and robust, colorful sonics — into your DAW-based workflow, the Heritage Audio MCM-20.4 is a great-sounding, elegant solution.
Heritage Audio MCM-20.4 20-channel, Vintage-topology Rackmount Mixer Features:
- 16 input channels arranged into 2 subgroups of 8
- Each channel features concentric pan and level controls plus a balanced insert and a mute switch
- 2 stereo subgroups are passively summed into the master bus
- Master bus has its own balanced insert point and VU meters
- 4 channels of pre/post-fader aux sends
- Rear-panel connections are made via DB-25 connectors
- Master bus connections via dedicated XLRs
| Heritage Audio's MCM-8 MK2 is an 8-slot 500 Series chassis with an integrated 10-channel summing mixer. The top-of-the-line MCM-8 MK2 features On Slot Technology that leverages next-generation power electronics to handle power supply on a per slot basis. Each slot has its own power supply linear regulation stages, isolating each module from the rest. Your modules simply share the metal enclosure. Each slot even has test LEDs for checking correct power operation. Dual-concentric potentiometers handle Volume and Pan for each slot, with pan pots being center detented for precise center positioning. Each channel is equipped with an On switch to assign it to the mix bus. MK2 improvements include a lower noise floor and the addition of a bypass switch for each slot that still lets you use the summing mixer functions. Heritage Audio has earned the respect of Sweetwater engineers, and the MCM-8 MK2 lives up to that sterling reputation.
Superb build and feature set
From its RAF blue-gray enclosure to the solid tactile feedback from its knobs and switches, the Heritage Audio MCM-8 MK2 unabashedly rocks vintage British Class A vibe. And just like the classic gear that inspires all Heritage Audio equipment, the MCM-8 MK2 boasts superb build quality and a very smart feature set. There's an additional stereo input on the back panel, which allows several MCM-8 MK2 units to be daisy-chained — or signals not needing further 500 Series processing to be mixed together. The central section sports analog VU meters and a Stereo Master fader. Gold-plated XLRs and DSUB25s handle the I/O.
Smart technology, superior sound
Thanks to Heritage Audio's On Slot Technology (OST), the MCM-8 MK2's power capability is a maximum of 400mA per rail, per slot — with an overall of 1.4A (1.6A non-continuous) per rail, whichever is reached first. Total available phantom power is 140mA. The mix bus has a passive voltage summing topology, similar to that found in Rupert Neve's 80 Series consoles of the 1970s. The gain loss is restored by the same Class A, 2n3055 driven, transformer-based output stage used in the Heritage Audio's modern-day version of the classic 1073. If you're not into specs, what this all means is that the MCM-8 MK2 is built right to give you many years of authoritative sonic performance and trouble-free use in your studio or on the road.
Heritage Audio MCM-8 MK2 Features:
- 8-slot 500 Series chassis with integrated 10-channel summing mixer
- NEW lower noise floor
- NEW bypass switch for each slot that leaves summing mixer functions enabled
- Mix bus with vintage Neve-style passive voltage summing topology
- Additional stereo input on the back panel allows several MCM-8s to be daisy-chained
- Central section sports analog VU meters and a Stereo Master fader
- Handles power supply on a per slots basis, isolating each module from the rest
- Gold-plated XLRs and DSUB25s handle your I/O
- 140mA total available phantom power
- Class A transformer-based output stage
- Solid build quality for many years of trouble-free use
| The Purple Audio Moiyn is an innovative 500 Series 8-channel summing amp module that transforms your Sweet Ten rack into an 8 x 2 mixer. When using this feature, you can still use the first eight modules' outputs as you normally would into your DAW or tape machine. Place the Moiyn in slot nine of the rack, and you then are able to assign each module (in slots 1-8) to either of the two outputs via the Moiyn's front-panel buttons. Finally, use the rotary knob to adjust your output volume. The Purple Audio Moiyn is an ideal way to get the most from your Sweet Ten rack.
Purple Audio - the quality is designed in
Sweetwater is proud to carry Purple Audio. Founded in 1997 by Andrew Roberts, Purple Audio has kept the analog flame burning brightly with acclaimed professional signal processors and studio problem solvers based on inspired new designs and fresh takes on coveted classic gear. Handcrafted in Pennsylvania, Purple Audio equipment is built for the long haul, using only the finest components. Let Purple Audio's innovative engineering elevate your studio's sonic quality and juice your workflow.
Purple Audio Moiyn 500 Series Summing Amplifier Features:
- Designed specifically for mounting in Slot 9 of Purple Audio's Sweet Ten 500 Series rack
- Transforms your Sweet Ten rack into an 8 x 2 mixer
- Discrete signal path with 2 KDJ3 Summing Amplifiers and 2 KDJ4 Output Amplifiers
- Differential summing amplifier with 15 Kilohm inputs
- Stereo balanced inject
- 8 Input left/right assignable
- Current consumption: 90mA
- Discrete signal path
- Auto-resetting fuse shuts down individual module without affecting entire rack or console
- Includes high-quality 2-bus rotary master fader
- Cascade multiple Sweet Tens with Moiyns for more channels
- Requires Purple Audio's Sweet Ten rack
- ROHS certified lead-free
| SSL Six Mixer
The SSL Six Mixer is a condensed professional console for use in the studio, in post-production, on stage, and for podcasting, SiX offers big console sound and an impressive set of utility features in a format that is small enough to stick in a bag. SiX is stunning value; it offers two recording channels with SuperAnalogueTM mic pres, an essential one knob version of the classic SSL Channel Compressor, a new two-band Channel EQ, inserts and 100mm faders.
There is a two-knob version of the legendary G-Series Bus Compressor on the main mix bus and the unique Listen Mic Compressor on the Talkback. In mixdown mode it is a very capable twelve channel summing system that offers analogue detail, depth and width to your mixes. The Six Mixer carries the DNA of 40 years of true expertise in creative studio workflow. Listen to SiX and you will experience the impeccable sonic performance that is the hallmark of every SSL console. It is powerful, intuitive, inspired and rewarding.
SSL Six Mixer Features
- Benchmark SuperAnalogueTM audio performance
- Stunning Recording Path
- Classic SSL Channel Processing
- The unique Listen Mic Compressor
- Professional routing & Monitoring
- 12 Input summing at Mixdown
- Legendary Master Bus Compressor
- Completely balanced signal path
- Auto switching Power supply (100 - 240V)
| KORG MW 2408 MIXER MIXER | The Dangerous Music 2-BUS+ is a 2U, 16-channel analog summing mixer with both XLR and D-sub inputs. It raises the bar on its legendary 2-BUS predecessor with even lower crosstalk, distortion, and noise-floor performance, along with stunningly precise soundstaging and center focus. Dangerous spent over two years developing three onboard audio processors that, with a simple push of a button and twist of a knob, add tone and color to your stems or across your entire mix directly from the 2-BUS+. The 2-BUS+ is smartly designed, extremely useful, and sounds incredible.
A trio of custom audio processors
In sync with Dangerous Music's doctrine of tonal coloration as a per-project artistic choice, the 2-BUS+ features three separate custom audio processors that selectively add tone and color to your mixes. In parallel processing mode, you can deploy Harmonics, a tuned harmonic distortion generator, and Paralimit, a FET limiter on steroids. At Sweetwater, we've applied both of these across stereo mixes and on pairs of stems. X-Former kicks in a pair of custom transformers with core-saturation control on your stereo mix outs. You can have all three tone processors active concurrently, and you can flip the order of signal flow through distortion and limiting.
Outstanding flexibility
Dangerous Music knows that each engineer — and session — is unique, so they designed the 2-BUS+ for outstanding professional flexibility. They spec'd it with an XLR stereo insert before the outputs for adding a separate compressor or processing chain that you can bypass at the touch of a button for a quick reference comparison. Channels 1/2 and 9/10 can be set to mono to rout; for instance, vocals/bass and kick/snare each to its own mono input. They also gave the 2-BUS+ an output control stepped in 0.5dB increments from -4dB to +6dB, and included XLR connections for both the main and monitor outputs.

Gang 'em for high channel count
Need a full-on analog "console" summing experience? Gang together multiple 2-BUS+ units via the stereo expansion inputs XLR to create a customized channel count. For the ultimate in tonal flexibility and control, the custom audio processors on each unit apply across the ganged group output. With three units, for instance, you'll have 48 channels of analog summing, with the first two units employing Harmonics (distortion), and Paralimit (limiter) across two separate stereo stems, and the third unit applying X-Former transformer saturation on the master stereo outputs.
What the pros are saying about the 2-BUS+:
- "The Paralimit and X-Former appear to be magic knobs. Special mention goes to the Paralimit because it does that lovely thing of bringing up the general ambience without slamming the track, something I particularly love on drums. Plugged it into my system along with my old 2-BUS and Dangerous MONITOR ST, and wow ... it's fantastic! Bags of air and space around the mix." — Chris Blackwell (drummer/composer)
- "Since the 2-BUS has so much headroom, it's really easy for me to decide that I want the entire vocal submix to be brighter or warmer, or more or less compressed." — Michael James (producer/mix engineer)
- "The Dangerous Music 2-BUS is one of the reasons my studio delivers a killer sound that grants the edge on the competition." — Alberto Rizzo Schettino (engineer)
- "Between SSL, in-the-box, and 2-BUS ... in blind tests ... it was a unanimous decision that the Dangerous mixes beat out everything. The 2-BUS mixes ... were simply cleaner and warmer than the SSL or in-the-box mixing ... I just don't miss my console." — Gina Fant-Saez (mix engineer)
- "With the 2-BUS LT, elements have their own place. You end up with a quicker, bigger mix and retain a more natural, less processed sound." — Phil Greiss (producer/engineer)
- "The Dangerous Music equipment is the centerpiece of my mixing rig. Everything I do goes through a Dangerous MONITOR, 2-BUS, MASTER, and BAX EQ. Everything." — Fab Dupont (mix engineer)
- "I don't understand how the 2-BUS has been in the studio for so long, but hasn't gotten to live shows — the sound is unbelievable." — Horace Ward (FOH engineer)
- "The harmonic and transformer flavors are great options to have and the parallel limiter is a genius idea." — Chris Tabron (producer/mix engineer)
Dangerous Music 2-BUS+ Analog Summing Mixer Features:
- Stunning 16-channel analog summing mixer injects your mixes with exceptional headroom and dimensionality
- 3 analog options (Harmonics, Paralimit, and X-Former) for adding tonal coloration to your mix
- XLR and D-sub input connectivity and flexible routing allow for a customized workflow
- Integrate your outboard gear easily with the switchable stereo analog insert
- Output control is stepped in 0.5dB increments for perfect recallability
- High-quality components ensure audiophile-grade sound
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