Includes: Pre-amplifier Remote Rack mount ears Power Cable FM Radio antenna How-to setup video Warranty Description:Introducing the Rockville PRE-70V 70V 8 zone Pre-amp mixer with Bluetooth and optical. This is the perfect solution for commercial audio applications. With 8 mono or 4 stereo zones with independent volume controls and lots of source playback options this will be your go-to 70V product for your next installation. This mixer/pre-amp is designed to work seamlessly with any 70V power amplifier up to 500 watts RMS.There are 2 mic inputs with echo control (one with talk over function). You also get 1 RCA line input, 1 optical input, and an RCA line output.Each zone can have an unlimited amount of speakers wired in parallel as long as you do not exceed the power of the amplifier that is plugged into this.This model also includes a chime button so you can create a chime sound before making announcements.The PRE-70V series features Bluetooth audio streaming so you can play your favorite music or access a playlist right from your phone! This amp also features both USB and SD inputs allowing you to play audio stored on a USB thumb drive or SD Card.We also have convenient euro-block speaker terminals that make it super easy to install the wires even if the receiver is hidden in a corner. The terminals are detachable and once you connect your speaker wire to the terminal it just clicks into the receiver.Our goal with the PRE-70V is to make it possible for anyone to install 70 volt systems on their own without spending thousands of dollars on a contractor. This model makes it a breeze to connect many speakers and multiple external sources. We intentionally use common plugs like RCA and ¼" on our model to make this more universal and user friendly. With our unique design you can feel confident in your DIY ability when installing our commercial system!Wiring is simple:1.Connect bare wire from the PRE-70V output and plug it to the input of your amplifier. 2.Connect bare wire from the output of your power amplifier back to the 70V input on the PRE-70V3.Connect the 70V speakers to the speaker output on the PRE-70VWhat is 70 volt ?70 volt systems are the number one choice for any application where you want to install multiple speakers. With 70 volt there are a lot of advantages over 8-ohm systems. One of the main advantages is the simplicity of the wiring as well as how easy it is to match up speakers with the amplifier. If you were to use this PRE-70V with a 250 watt 70V power amplifier then you can install speakers that total close to 250 watts. It does not matter if it is 10 speakers that are 20 watts each or 25 speakers that are tapped at 7.5 watts each. You always want your 70 volt amp to have at least 15 or 20% more power than the combined watts your speakers are tapped at. When we say the word tap, what we are referring to are the selectors that many speakers in 70 volt have on them. For example, some speakers might have selectable options of 1.5w, 3w, 5w, 10w. What this does is limit how many watts the built-in transformer on the speaker will allow the speaker to get from the amplifier. What this allows for is full customization of your sound for your space. In a restaurant for example you can tap your dining room speakers at 5 watts, the speakers by the bar area at 10 watts, the ones in the hallway at 3 watts and the speakers in the bathrooms at 1.5 watts. Another great feature with 70 volt is you can mix and match any 70 volt speakers whether they are ceiling speakers, wall mounted speakers, subwoofers, etc.70 volt systems allow you to run very long lines of speaker wire without signal loss. This makes it ideal when running long speaker leads.The wiring is simple. You just wire all the positive terminals of the speakers to the positive 70 volt terminals of the amplifier. The negative terminals on the speaker simply get wired to the negative terminals on the amp. You do not have to worry about impedance. The power is constant.Applications: Restaurant Bar Café School Lounge Home (Multi-zone, Multi-room) Office Warehouse Features: Rockville PRE-70V 70V 8 zone Pre-amp mixer with Bluetooth, optical (Requires 70v power amplifier) 8 mono or 4 Stereo zones of speaker outputs - each zone has a separate volume control Built in Bluetooth audio streaming FM radio tuner USB input to play audio stored on a thumb drive (32gb max) SD card slot to play music stored on an SD Card (32gb max) Separate volume control for MIC1, MIC2, MP3, LINE1, Optical Echo control for the mic inputs with speed and repeat adjustments BASS and Treble control Detachable euro-block speaker output terminals for easy installation Chime button for making announcements Top quality aluminum panel with industrial grade knobs 4 segments signal level indication Inputs and Outputs: (1) Set RCA AUX input (2) Mic inputs RCA Line output Optical input Detachable euro-block speaker output terminals for easy installation (8 zones) Specifications: Power Requirements: 120V / 50-60Hz A-Weighted Signal to Noise (@ 1W) -68.1dBA A-Weighted Signal to Noise (referenced to full 4 ohm power) -89.2dBA Frequency response: 49Hz to 14.9 Khz Frequency Response vs. THD+N (worst case across normal bandwidth 1W @ 8 Ohms: 0.89% Weight: 18.7 lbs.
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