INC ® Installation and Operation Manual ProMix 12 Full-featured 12 Input Audio Mixing Console Manual Update: 11/28/2006 Due to the dynamic nature of product design, the information contained in this document is subject to change without notice. Broadcast Tools, Inc., assumes no responsibility for errors and/or omissions contained in this document. Revisions of this information or new editions may be issued to incorporate such changes. Broadcast Tools® is a registered trademark of Broadcast Tools, Inc.
ProMix 12 Installation and Operation Manual INTRODUCTION Thank you for your purchase of a Broadcast Tools® ProMix 12 Full-featured 12 input audio mixing console (referred to as the ProMix 12 throughout this manual). We’re confident that this product will give you many years of dependable service. This manual is intended to give you all the information needed to install and operate the Broadcast Tools® ProMix 12.
ProMix 12 Installation and Operation Manual DESCRIPTION The ProMix 12 is a full-featured audio mixing console ideally suited for the typical broadcast studio or any similar application. It features inputs for 3 microphones and 9 stereo line sources, two stereo mixing buses, a “mix-minus” output, a mono output, and comprehensive cue and monitoring systems.
ProMix 12 Installation and Operation Manual Unbalanced sources: TIP: RING: SLEEVE: Hi (or “hot” lead) (leave unconnected) Ground (or shield) Balanced sources: TIP: Hi RING: Lo SLEEVE: Ground Note: The console terminates the Lo input to ground via a 1K resistor. In some cases, connecting the Lo audio lead to Ground will produce a slightly higher audio level. However, check the manual of the source equipment to be certain grounding the Lo output lead will not cause damage.
ProMix 12 Installation and Operation Manual BOOTH OUTPUT The console provides a secondary Booth monitor output (7) that can be used to drive headphones worn by an announcer in an “announce booth”. This output, via TRS jack, will drive headphones of 300 ohms or higher. (Termination is not necessary.) The nominal output level is 0dBm.
ProMix 12 Installation and Operation Manual CONTROL INTERFACE MIC 2 & 3 REMOTE CONTROL The console provides for remote control of Mic 2 and Mic 3 via the Mic 2 & 3 Remote Control connector (9). This 15-pin D connector should be wired according to Figure 2. Note that “cough switches” for Microphones 2 & 3 can be installed for use by the console operator if these microphones will be used in the studio.
ProMix 12 Installation and Operation Manual ADJUSTMENTS AND SETUP MICROPHONE GAIN ADJUSTMENT Each of the 3 Mic input channels has a GAIN adjustment (12) to optimize the mic preamp gain for the microphones being used. The gain can be varied over a 20dB range. Use a small screwdriver to adjust the gain trimmers as needed. Mic gain is properly adjusted when the preamp output (accessible via the TIP of the Mic Process Insert (2) TRS jacks) is about –10dBm when speaking into the microphone.
ProMix 12 Installation and Operation Manual OPERATION (See Figure 4 for controls (x) referenced in the text.) Operation of the ProMix 12 is simple and straightforward. Audio sources can be mixed to the Program and/or Audition buses. Line channels can be also be fed to the Cue bus. The console’s outputs can be monitored via the Monitor system and VU meters. The console operator can also use headphones, plugged into the Phones output. A separate Booth output can feed headphones used by a booth announcer.
ProMix 12 Installation and Operation Manual PGM/AUD button (9) selects either the Program or Audition bus. If the button is up, the Program bus is heard; if the button is down, the Audition bus is heard, provided that the BUS/AIR button (10) is up. If the BUS/AIR button (10) is down, the PGM/AUD selection is overridden, and the audio source fed into the Monitor Air input will be heard. This is normally fed with an off-air demodulator or tuner for monitoring the station’s transmitted signal.
ProMix 12 Installation and Operation Manual heard through the headphones. If this button is up, the headphones will “follow” whatever audio source is selected for the Monitor system. If the button is down, the headphones will monitor the Cue bus. The headphone volume is adjusted with the PHONES control (17). BOOTH OUTPUT The console provides a secondary headphone output for use by an announcer in an “announce booth”. The MONI/AUD button (18) determines what the booth announcer hears.
ProMix 12 Installation and Operation Manual VU METERS The ProMix 12 features accurate VU meters (23) to monitor the main bus output levels. Using the VU METER can meter either the Program or Audition bus: PGM/AUD button (22). If the button is up, the Program bus is metered; if it is down, the Audition bus is metered. Mix levels should be adjusted so most peaks read about 0VU. The meters are calibrated so that 0VU equals +4dBm on the main bus outputs.
ProMix 12 Installation and Operation Manual SPECIFICATIONS AUDIO INPUTS & OUTPUTS MIC inputs: MIC Process: LINE inputs: AIR input: MAIN outputs: MONITOR output: BOOTH output: PHONES output: CUE/TB outputs: AUDIO PERFORMANCE Frequency response: Mic channel EIN: Output noise: Distortion: Input headroom: Output headroom: Crosstalk: -60dBm to –40dBm, 10K, balanced Post-preamp loop-thru: -10dBm, unbalanced -10dBv or +4dBm, 10K, balanced or unbalanced -10dBv or +4dBm, 10K, balanced or unbalanced +4dBm, balanced
ProMix 12 Installation and Operation Manual LIMITED WARRANTY The term “Buyer” as used in this document refers to and includes both (but only) (a) any person or entity who acquires such an item for the purpose of resale to others (i.e., a dealer or distributor of an item), and (b) the first person or entity who acquires such an item for such person’s or entity’s own use.
Insert Level SW -10/+4 LEGEND RT LT AIR Mon XLR SW Level CUE SW LED SW Off/On -10/+4 Chan 4-12 RT LT Line Inputs Chan 1-3 Trimmer Mic-Pre Date Modified: 05/16/07 Rev A & B MIC SW AUD SW PGM SW AUD SW PGM T/R/S 1/4” SW PGM AUD SW VU Meter SW BUS AIR VU Meter SW QMix Booth Phones CUE SW SW SW Talk Back (Minus Chan.
ProMix 12 Installation and Operation Manual CAUTION! Broadcast Tools products, as any electronic device, can fail ... NOTE: For safety, DO NOT connect ... ! TIP Helpful tips area. WEBSITE: Visit our web site for product updates and additional information. SECTION TITLE e-mail: support@broadcasttools.com v o i c e : 360.854.9559 fax: 360.854.
ProMix 12 Installation and Operation Manual CAUTION! Broadcast Tools products, as any electronic device, can fail ... NOTE: For safety, DO NOT connect ... ! TIP Helpful tips area. WEBSITE: Visit our web site for product updates and additional information. SECTION TITLE e-mail: support@broadcasttools.com v o i c e : 360.854.9559 fax: 360.854.
ProMix 12 Installation and Operation Manual CAUTION! Broadcast Tools products, as any electronic device, can fail ... NOTE: For safety, DO NOT connect ... ! TIP Helpful tips area. WEBSITE: Visit our web site for product updates and additional information. SECTION TITLE e-mail: support@broadcasttools.com v o i c e : 360.854.9559 fax: 360.854.
ProMix 12 Installation and Operation Manual CAUTION! Broadcast Tools products, as any electronic device, can fail ... NOTE: For safety, DO NOT connect ... ! TIP Helpful tips area. WEBSITE: Visit our web site for product updates and additional information. SECTION TITLE e-mail: support@broadcasttools.com v o i c e : 360.854.9559 fax: 360.854.
