SubMix - Professional audio equipment Radial Engineering - Free user manual and instructions

Product Type	Subwoofer Mixer / Processor
Brand	Radial Engineering
Model	SubMix
Rack Size	1U (19-inch rack-mountable)
Dimensions	483 mm x 44 mm x 152 mm (19" x 1.75" x 6")
Weight	2.3 kg (5 lbs)
Power Supply	9V DC, 500 mA (includes external power adapter)
Input Connectors	2x XLR female, balanced
Output Connectors	2x XLR male, balanced (Main and Sub outputs)
Frequency Response	20 Hz - 20 kHz (-0.5 dB)
Crossover Frequency	Variable, 50 Hz to 200 Hz
Phase Switch	0° / 180° polarity reversal
Subwoofer Level Control	Rotary knob, -∞ to +10 dB
Output Level	+4 dBu nominal, maximum +24 dBu
Ground Lift	Switchable to eliminate hum
Construction	Steel chassis with baked enamel finish
Cooling	Passive, no fan
Operating Temperature	0°C to 40°C
Warranty	Radial 3-year transferable warranty

Frequently Asked Questions - SubMix Radial Engineering

How do I connect my main speakers and subwoofer to the SubMix?

Connect the full-range signal from your mixer or preamp to the INPUT jacks. Then connect your main speakers to the MAIN OUTPUT and your subwoofer to the SUB OUTPUT. Adjust the CROSSOVER frequency to blend the units.

What is the purpose of the Ground Lift switch?

The Ground Lift switch disconnects pin 1 (ground) from the chassis to break ground loops that cause hum and buzz. Start with the switch in the 'Lift' position if you hear hum.

Can I power the SubMix from a pedalboard power supply?

Yes, the SubMix accepts a standard 9V DC supply at 500 mA. Use a regulated power supply with a 2.1mm barrel connector (center negative).

What type of cables should I use?

Use balanced XLR cables for best noise rejection. Unbalanced cables may work but can introduce noise over longer distances.

How do I set the crossover frequency?

Start with the CROSSOVER control set to 80 Hz (common THX standard). Adjust up or down to match your subwoofer and main speakers for a seamless transition.

What does the Phase switch do?

The Phase switch inverts the polarity of the subwoofer output by 180 degrees. Use it to align the subwoofer's sound wave with the main speakers for better bass integration.

My subwoofer sounds boomy or disconnected. What should I check?

First, verify the LEVEL control isn't too high. Next, adjust the CROSSOVER frequency and try the PHASE switch in both positions. Ensure all cables are fully inserted and not faulty.

Is the SubMix compatible with high-level (speaker) inputs?

No, the SubMix is designed for line-level signals only. Do not connect speaker outputs to its inputs; it may cause damage.

How do I clean the SubMix?

Disconnect power and use a dry, soft cloth to wipe the chassis. For stubborn spots, slightly dampen the cloth with water. Do not use solvents or abrasive cleaners.

What is the warranty period for the Radial SubMix?

Radial Engineering offers a 3-year transferable warranty. Register your product on the Radial website to activate coverage.

USER MANUAL SubMix Radial Engineering

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Radial® engineering

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Table of Contents Page

Overview....1

Features 2

Making Connections....3

Ominiport....3

Using the Submix in mono....4

Combining Submix modules for more channels 5

Using the Submix modules in stereo 6

Specifications 7

Block diagram....7

Radial limited warranty ......Back Cover

Congratulations on your purchase of the Radial Submix, an innovative 500 series module that lets you mix 4 line level sources such as keyboards, drum machines, effects returns, computers and just about any other audio source together inside any 500 series rack.

Should you find yourself asking a question that is not addressed, we invite you to view the Submix FAQ page on our web site. This is where we post the latest hints and of course questions from users. If you still do not find what you are looking for, feel free to send an email to [e-mail] and we will do our very best to respond to you in short order.

Now get ready to start connecting more cables and wires... cause this is what audio engineers love to do most!

WARNING NOTICE TO USER!

Although preventative safety measures have been designed into Radial 500 series products we strictly advise against hot swapping modules or plugging and unplugging them when the Workhorse or other 500 series rack is powered on. Hot swapping can cause connection sparks at the card-edge connector that could send damaging transients to other equipment. This also greatly reduces the life span of the contacts. Damage due to hot swapping is not covered under warranty. There are no user serviceable parts inside.

OVERVIEW

The Submix is a four input, one output mixer (4x1) in a single card slot module designed to fit the 500 series format. It follows convention with the 15-pin edge connector so that it works in all 500 series power racks. Each of the front panel 14 inputs are designed to accommodate all types of unbalanced line level signals. Examples include instruments such as keyboards, samplers and electronic drums, plus line-level sources such as tape machines, effects returns, CD players, iPods, and computer audio outputs. These are then quickly mixed using the four front panel control knobs.

graph TD
    A["Audio Input"] --> B["Computer"]
    B --> C["Radio Module Out"]
    D["Laptop"] --> E["UNBALANCED LINE LEVEL INPUTS"]
    E --> F["Radial Module Out"]
    G["Radio Module"] --> H["Power"]
    H --> I["1"]
    H --> J["2"]
    H --> K["3"]
    H --> L["4"]
    M["Radio Module"] --> N["5X-500 SUBMIX"]
    O["Radio Module"] --> P["5X-500 SUBMIX"]

Typical 4x1 line mixer setup.

For those equipped with a Radial Workhorse 500 series power rack, the Omniport functions as an expansion buss to enable two or more Submix modules to be combined creating a larger mixer.

graph TD
    subgraph LeftPanel
        A["User Interface"] --> B["Analog Encoder"]
        B --> C["Radiokey"]
        C --> D["UNBALANCED LINE LEVEL INPUTS"]
        D --> E["1"]
        D --> F["2"]
        D --> G["3"]
        D --> H["4"]
        D --> I["Power 1"]
        D --> J["Power 2"]
        D --> K["Power 3"]
        D --> L["Power 4"]
        D --> M["Power 1"]
        D --> N["Power 2"]
        D --> O["Power 3"]
        D --> P["Power 4"]
        D --> Q["Power 1"]
        D --> R["Power 2"]
        D --> S["Power 3"]
        D --> T["Power 4"]
        D --> U["Power 1"]
        D --> V["Power 2"]
        D --> W["Power 3"]
        D --> X["Power 4"]
        D --> Y["Power 1"]
        D --> Z["Power 2"]
        D --> AA["Power 3"]
        D --> AB["Power 4"]
        D --> AC["Power 1"]
        D --> AD["Power 2"]
        D --> AE["Power 3"]
        D --> AF["Power 4"]
        D --> AG["Power 1"]
        D --> AH["Power 2"]
        D --> AI["Power 3"]
        D --> AJ["Power 4"]
        D --> AK["Power 1"]
        D --> AL["Power 2"]
        D --> AM["Power 3"]
        D --> AN["Power 4"]
        D --> AO["Power 1"]
        D --> AP["Power 2"]
        D --> AQ["Power 3"]
        D --> AR["Power 4"]
        D --> AS["Power 1"]
        D --> AT["Power 2"]
        D --> AU["Power 3"]
        D --> AV["Power 4"]
        D --> AW["Power 1"]
        D --> AX["Power 2"]
        D --> AY["Power 3"]
        D --> AZ["Power 4"]
        D --> BA["Power 1"]
        D --> BB["Power 2"]
        D --> BC["Power 3"]
        D --> BD["Power 4"]
        D --> BE["Power 1"]
        D --> BF["Power 2"]
        D --> BG["Power 3"]
        D --> BH["Power 4"]
        D --> BI["Power 1"]
        D --> BJ["Power 2"]
        D --> BK["Power 3"]
        D --> BL["Power 4"]
        D --> BM["Power 1"]
        D --> BN["Power 2"]
        D --> BO["Power 3"]
        D --> BP["Power 4"]
        D --> BQ["Power 1"]
        D --> BR["Power 2"]
        D --> BS["Power 3"]
        D --> BT["Power 4"]
        D --> BU["Power 1"]
        D --> BV["Power 2"]
        D --> BW["Power 3"]
        D --> BX["Power 4"]
        D --> BY["Power 1"]
        D --> BZ["Power 2"]
        D --> CA["Power 3"]
        D --> CB["Power 4"]
        D --> CC["Power 1"]
        D --> CD["Power 2"]
        D --> CE["Power 3"]
        D --> CF["Power 4"]
        D --> CG["Power 1"]
        D --> CH["Power 2"]
        D --> CI["Power 3"]
        D --> CJ["Power 4"]
        D --> CK["Power 1"]

Using the Omniport buss input to create an 8x1 line mixer (Radial Workhorse power rack only).

FEATURE SET

1. LEVEL 1 thru 4: Accustate input control, simultaneously adjusts the sensitivity and gain for maximum signal to noise. Use to adjust input levels for each of the four channels.
2. CHANNEL ID: Easy to read input channel identification improves workflow efficiency in the studio.
3. POWER: LED indicator illuminates when the module is energized by the power rack.
4. INPUTS: Four separate 14 " inputs to connect keyboards, drum machines, effects returns and other unbalanced line level sources.
5. XLR OUT: The Submix routes the 4 channel mix to the XLR output on your 500 series power rack.
6. OMNIPORT: Designated as a virtual-earth mix-buss input, enables multiple Submix modules to be used together when used with a Workhorse to create 8x1, 12x1 or larger mixers.

GETTING STARTED

Although the Submix is extremely easy to use, we suggest you follow these simple instructions before using it. As with all audio equipment, always ensure all levels are turned down and equipment is turned off before making any connections or inserting the Submix into a 500 series power rack. This common practice ensures turn-on transients will not damage more sensitive components such as tweeters. Screw the module in to ensure it does not accidentally get dislodged.

Making connections

Four high-impedance 14 " inputs on the front panel correspond to the four level controls. Line-level sources connect to the inputs using standard instrument cables. Mixer channel-1 can also accept a balanced line signal via the rear panel XLR input jack. However, the front jack has priority over the rear and inserting a plug into the front channel-1 14 " input will defeat the rear XLR input. To use the rear XLR input, ensure the front input is not connected.

The Submix uses the rear panel XLR output for the master mix output. This balanced line-level signal connects to your recorder or mixing console or to more 500 series signal processors like the Radial Komit compressor. If you are using the Submix in a Workhorse power rack, the FEED function can automatically route the output to the adjacent module.

Omniport

If you are using the Submix in a Radial Workhorse power rack the Omniport feature will be available. In this instance with the Submix, the Omniport acts as a mixer expansion buss allowing additional Submix modules to link together to form larger confi gurations like 8x1, 12x1, etc. The easiest way to connect Submix modules would be with a standard 14 patch cable from the fi rst module's output to the second module's Omniport jack.

USING THE SUBMIX IN MONO

Using the Submix will be mostly the same no matter what source is connected so we have decided to use keyboards as the source to explain the functionality. Start by connecting the output from your first keyboard to input-1 on the Submix. You will note that the noise level will remain low at all levels. The Submix employs Radial's unique VaryState™ gain control that actually changes the sensitivity along with the gain. Set the level control completely counterclockwise or off to start. Connect the output from the rear panel of your 500 series power rack to your recording system. Start playing increase the level slowly until you reach a comfortable listening level. Repeat for input-2.

graph TD
    subgraph_Channel_1["CH.1 CH.3"]
        A1["Ch.1"] --> B1["Ch.2"]
        A2["Ch.2"] --> B2["Ch.3"]
        A3["Ch.3"] --> B3["Ch.4"]
    end
    subgraph_Channel_2["CH.4"]
        C1["CH.4"] --> D1["Ch.5"]
        C2["Ch.5"] --> D2["Ch.6"]
        C3["Ch.6"] --> D3["Ch.7"]
    end
    subgraph_Card_Slot1["Card Slot 1"]
        E1["FEED"] --> F1["INPUT"]
        F1 --> G1["OFF"]
        G1 --> H1["LINK"]
        H1 --> I1["OUTPUT"]
        I1 --> J1["OFF"]
        J1 --> K1["OMNIPORT"]
        K1 --> L1["OUTPUT"]
        L1 --> M1["INPUT"]
    end
    N["MIX OUT"] --> O["Mixer"]

Connecting four mono instruments to the Submix

COMBINING SUBMIX MODULES TOGETHER FOR MORE CHANNELS

If you are equipped with a Radial Workhorse power rack, you can combine two or more Submix modules together to create larger mixers. Simply connect the TRS output from the first unit and plug it into the Omniport and the signal will automatically appear on the output buss to create an 8x1 mixer. Adding a third Submix will give you a 12x1 mixer. Combine these with a Workhorse Powerstrip, to can create a super compact 12x1 stage mixer!

graph TD
    subgraph KEYBOARDS_1~4["KEYBOARDS 1~4"]
        A1["Input"] --> B1["UNIAPART RED INPUT"]
        A2["Input"] --> B2["UNIAPART RED INPUT"]
        A3["Input"] --> B3["UNIAPART RED INPUT"]
        A4["Input"] --> B4["UNIAPART RED INPUT"]
        A5["Input"] --> B5["UNIAPART RED INPUT"]
        A6["Input"] --> B6["UNIAPART RED INPUT"]
        A7["Input"] --> B7["UNIAPART RED INPUT"]
        A8["Input"] --> B8["UNIAPART RED INPUT"]
        A9["Input"] --> B9["UNIAPART RED INPUT"]
        A10["Input"] --> B10["UNIAPART RED INPUT"]
        A11["Input"] --> B11["UNIAPART RED INPUT"]
        A12["Input"] --> B12["UNIAPART RED INPUT"]
        A13["Input"] --> B13["UNIAPART RED INPUT"]
        A14["Input"] --> B14["UNIAPART RED INPUT"]
        A15["Input"] --> B15["UNIAPART RED INPUT"]
        A16["Input"] --> B16["UNIAPART RED INPUT"]
        A17["Input"] --> B17["UNIAPART RED INPUT"]
        A18["Input"] --> B18["UNIAPART RED INPUT"]
        A19["Input"] --> B19["UNIAPART RED INPUT"]
        A20["Input"] --> B20["UNIAPART RED INPUT"]
        A21["Input"] --> B21["UNIAPART RED INPUT"]
        A22["Input"] --> B22["UNIAPART RED INPUT"]
        A23["Input"] --> B23["UNIAPART RED INPUT"]
        A24["Input"] --> B24["UNIAPART RED INPUT"]
        A25["Input"] --> B25["UNIAPART RED INPUT"]
        A26["Input"] --> B26["UNIAPART RED INPUT"]
        A27["Input"] --> B27["UNIAPART RED INPUT"]
        A28["Input"] --> B28["UNIAPART RED INPUT"]
        A29["Input"] --> B29["UNIAPART RED INPUT"]
        A30["Input"] --> B30["UNIAPART RED INPUT"]
        A31["Input"] --> B31["UNIAPART RED INPUT"]
        A32["Input"] --> B32["UNIAPART RED INPUT"]
        A33["Input"] --> B33["UNIAPART RED INPUT"]
        A34["Input"] --> B34["UNIAPART RED INPUT"]
        A35["Input"] --> B35["UNIAPART RED INPUT"]
        A36["Input"] --> B36["UNIAPART RED INPUT"]
        A37["Input"] --> B37["UNIAPART RED INPUT"]
        A38["Input"] --> B38["UNIAPART RED INPUT"]
        A39["Input"] --> B39["UNIAPART RED INPUT"]
        A40["Input"] --> B40["UNIAPART RED INPUT"]
        A41["Input"] --> B41["UNIAPART RED INPUT"]
        A42["Input"] --> B42["UNIAPART RED INPUT"]
        A43["Input"] --> B43["UNIAPART RED INPUT"]
        A44["Input"] --> B44["UNIAPART RED INPUT"]
        A45["Input"] --> B45["UNIAPART RED INPUT"]
        A46["Input"] --> B46["UNIAPART RED INPUT"]
        A47["Input"] --> B47["UNIAPART RED INPUT"]
        A48["Input"] --> B48["UNIAPART RED INPUT"]
        A49["Input"] --> B49["UNIAPART RED INPUT"]
        A50["Input"] --> B50["UNIAPART RED INPUT"]
        A51["Input"] --> B51["UNIAPART RED INPUT"]
        A52["Input"] --> B52["UNIAPART RED INPUT"]
        A53["Input"] --> B53["UNIAPART RED INPUT"]
        A54["Input"] --> B54["UNIAPART RED INPUT"]
        A55["Input"] --> B55["UNIAPART RED INPUT"]
        A56["Input"] --> B56["UNIAPART RED INPUT"]
        A57["Input"] --> B57["UNIAPART RED INPUT"]
        A58["Input"] --> B58["UNIAPART RED INPUT"]
        A59["Input"] --> B59["UNIAPART RED INPUT"]
        A60["Input"] --> B60["UNIAPART RED INPUT"]
        A61["Input"] --> B61["UNIAPART RED INPUT"]
        A62["Input"] --> B62["UNIAPART RED INPUT"]
        A63["Input"] --> B63["UNIAPART RED INPUT"]
        A64["Input"] --> B64["UNIAPART RED INPUT"]
        A65["Input"] --> B65["UNIAPART RED INPUT"]
        A66["Input"] --> B66["UNIAPART RED INPUT"]
        A67["Input"] --> B67["UNIAPART RED INPUT"]
        A68["Input"] --> B68["UNIAPART RED INPUT"]
        A69["Input"] --> B69["UNIAPART RED INPUT"]
        A70["Input"] --> B70["UNIAPART RED INPUT"]
        A71["MIX 1~4 OUT"] -->|MIX 1~4 OUT| MUXOUT
    end
    subgraph CARD_SLOT_1
            direction TB
            NFEED
            OFF
            LINK
            OUTPUT
            OFF
            OMNIPORT
            OUTPUT
            OUTPUT
    end
    subgraph CARD_SLOT_1
            direction LR
            NFEED
            OFF
            LINK
            OUTPUT
            OFF
            OMNIPORT
            OUTPUT
    end
    subgraph OMNI_PORT_IN
            direction IN
            OUTFOUT
            OUTPUT
            OUTPUT
    end
    subgraph MIX_OUT_1
            direction OUT
            OUTFOUT
            OUTPUT
            OUTPUT
    end

Two Submix modules tied together via Omniport configured for 8x1 mono output

COMBINING SUBMIX MODULES TOGETHER FOR STEREO

With two Submix modules, you can create a stereo setup by assigning the first Submix to left and the second Submix to right. When connecting, simply split the stereo signals to follow suit and you are set to go. This can provide your studio with a very efficient way of managing stereo sources such as playback tracks for overdubbing, mixing four stereo keyboards, or even be used to sum effects or channels together.

graph TD
    A["User Interface"] -->|KEYBOARDS LEFT| B["Keyboard Left"]
    A -->|KEYBOARDS RIGHT| C["Keyboard Right"]
    B --> D["Card Slot 1 INPUT"]
    B --> E["MIX 1~4 OUT"]
    C --> F["Card Slot 1 INPUT"]
    C --> G["MIX 5~8 OUT"]
    D --> H["OUTPUT LINK"]
    E --> I["OUTPUT LINK"]
    F --> J["OUTPUT LINK"]
    G --> K["OUTPUT LINK"]
    H --> L["UNBALANCED LINE INPUTS"]
    I --> M["UNBALANCED LINE INPUTS"]
    J --> N["UNBALANCED LINE INPUTS"]
    K --> O["UNBALANCED LINE INPUTS"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#ccf,stroke:#333
    style D fill:#dfd,stroke:#333
    style E fill:#dfd,stroke:#333
    style F fill:#dfd,stroke:#333
    style G fill:#dfd,stroke:#333
    style H fill:#dfd,stroke:#333
    style I fill:#dfd,stroke:#333
    style J fill:#dfd,stroke:#333
    style K fill:#dfd,stroke:#333
    style L fill:#dfd,stroke:#333

Two Submix modules configured 8x2 stereo output

RADIAL SUBMIX 500 SPECIFICATIONS

Circuit Type.....High grade audio IC op-amps with Accustate gain control

Frequency response .....20 Hz to 20KHz (+/- 0.5 dB)

Phase Response ....<10 degree shift at 20KHz

Maximum Input ....-2dBu/+12dBu

Maximum Output ....+16dBu

THD + N ....<0.005% (at 0dBu output)

Dynamic range 97dB (maximum input - noise floor)

Equivalent input noise ......-103dBu (maximum gain - noise floor)

Noise ....-85dBu (at maximum gain)

Gain ....+18dB (at maximum gain)

Intermodulation Distortion.....<0.006% (at 0dBu output)

Input Impedance ....100K (unbalanced)

Output Impedance ....300 Ohms

Omniport Function ....Unity gain expansion buss input

Power requirement ....+/- 16V (Workhorse or 500 series compatible power frame

Current draw 31mA

XLR Configuration:....Follows AES spec: pin-1 ground, pin-2 hot (+), pin-3 cold (-)

Size: 5.25" x 1.5" x 6.6" (13.34 x 3.81 x 16.75cm)

Weight: 0.7 lb (316 g)

Warranty: 3 years, transferable

THREE YEAR TRANSFERABLE LIMITED WARRANTY

RADIAL ENGINEERING LTD. ("Radial") warrants this product to be free from defects in material and workmanship and will remedy any such defects free of charge according to the terms of this warranty. Radial will repair or replace (at its option) any defective component(s) of this product (excluding finish and wear and tear on components under normal use) for a period of three (3) years from the original date of purchase. In the event that a particular product is no longer available, Radial reserves the right to replace the product with a similar product of equal or greater value. In the unlikely event that a defect is uncovered, please call 604-942-1001 or email [e-mail] to obtain an RA number (Return Authorization number) before the 3 year warranty period expires. The product must be returned prepaid in the original shipping container (or equivalent) to Radial or to an authorized Radial repair center and you must assume the risk of loss or damage. A copy of the original invoice showing date of purchase and the dealer name must accompany any request for work to be performed under this limited and transferable warranty. This warranty shall not apply if the product has been damaged due to abuse, misuse, misapplication, accident or as a result of service or modification by any other than an authorized Radial repair center.

THERE ARE NO EXPRESSED WARRANTIES OTHER THAN THOSE ON THE FACE HEREOF AND DESCRIBED ABOVE. NO WARRANTIES WHETHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL EXTEND BEYOND THE RESPECTIVE WARRANTY PERIOD DESCRIBED ABOVE OF THREE YEARS. RADIAL SHALL NOT BE RESPONSIBLE OR LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSS ARISING FROM THE USE OF THIS PRODUCT. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS, WHICH MAY VARY DEPENDING ON WHERE YOU LIVE AND WHERE THE PRODUCT WAS PURCHASED.

This product is intended for professional use only. The user should be familiar and experienced with the 500 series rack and module format.

Radial Engineering Ltd.

1588 Kebet Way, Port Coquitlam, BC, V3C 5M5

tel: [phone] • fax: [phone]

[e-mail] • www.radialeng.com