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JBL Commercial Audio Package w/ 4-Zone Multi Room Amp+(24) Drop-Ceiling Speakers

$4,119.00 $3,156.29
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Items included in this bundle

Package Includes:
  • (1) Rockville ROCK MATRIX 4 Zone 70 Volt Commercial Amplifier+Matrix Source Routing
  • (12) Pair JBL LCT 81C/T Commercial Drop Ceiling Tile Speakers For Office/Restaurant/Cafe

Your Rock Matrix 4 For Commercial Use (New Model):

How to Set Up Your Rock Matrix 4 (Commercial Use):

Your Rock Matrix 4 For Home Use (New Model):

How to Set Up your Rock Matrix 4 (HOME USE):

What's in the Box:

  • Matrix Amplifier
  • Remote
  • Detachable Rack mount ears
  • Power Cable
  • Owner’s manual
  • Warranty

Description of ROCK MATRIX 4:

Multi Source / Multi Zone Matrix Routing
The Rock Matrix 4 is a 4 zone commercial amplifier that allows you to route any source to a specific zone(s) and also route any microphone input to a specific zone(s). For example, you can play Bluetooth on zones 1 and 2 and route microphone 1 to zones 1 and 2 while playing something in Zone 3 using an RCA input, and playing something else in zone 4 using the 1/4" input. You can also route the other mic input to whichever zones you want.

Power and Flexibility
Each zone has 5 sets of speaker terminals depending on what kind of speakers you have. You can use 70 volt, 100 volt, 16 ohm, 8 ohm, and 4 ohm. No matter what you will get 110 watts RMS per channel. That is 440 watts of total RMS power. For example, you can have (2) 8 ohm speakers on zone 1, (30) 70 volt speakers on zone 2, 16 ohm speakers on zone 3, etc.

Lots of input options
This model gives you Bluetooth, USB, SD, (2) Sets RCA AUX inputs, (4) XLR Mic inputs, (2) 1/4" TS inputs, (4) 1/4" TRS LINE outputs (one per zone), Fire input, and a Siren input. There is also a backup DC24V power input in case of a power outage.

Flexible controls
The controls are really easy to use. You can easily route any source to any zone(s) and select the volume levels for that zone. There is bass and treble EQ controls to customize the sound. There is also a built in 1 watt speaker that allows you to drop in onto any zone and listen to the music playing.

Safety first
The built-in clipping limiter function protects your speakers and the amp from overheating. For further protection, there is also a cooling system in this amplifier that will keep the components running cool making the amplifier durable and reliable. There is a Fire input and a Siren input. This allows you to easily integrate a fire alarm and play a pre-recorded message that will override any music playing in case of an emergency. There is also a backup DC24V power input that allows you to connect a backup 24V battery that will kick in and power the unit in case of a power outage.


  • Rockville ROCK MATRIX 4 Zone 70 Volt Commercial Amplifier
  • 440 Watts Total RMS @ less than 1 % THD (110 Watts RMS per zone x 4 Zones)
  • Route Any Sources to Any Zones
  • 4 separate zone output and you can route any source to any zone and also route a microphone input to specific zone(s)
  • Supports multi zone installations using 70 volt, 100 volt, 16 ohm, 8 ohm, and 4 ohm speaker set ups
  • 4 line/mic inputs (2 of the mic inputs have selectable phantom power for condenser mics)
  • 19" rack mountable (removable rack brackets)
  • Built in 1w monitor speaker allows you to listen to playback on any zone
  • 100 volt RMS Power: 4 x 110 Watts RMS
  • 70 volt RMS Power: 4 x 110 Watts RMS
  • 4 ohm RMS power: 4 x 110 Watts RMS
  • 8 ohm RMS power: 4 x 110 Watts RMS
  • 16 ohm RMS power: 4 x 110 Watts RMS
  • Built in Bluetooth 5.0 chip allows audio streaming with matrix assigning to any zone(s)
  • USB input to play audio stored on a thumb drive with matrix assigning to any zone(s) (32gb max)
  • SD card slot to play music stored on an SD Card with matrix assigning to any zone(s) (32gb max)
  • Separate volume control for MIC1/LINE1, MIC2/LINE2, MIC3/Line3,MIC4/LINE4/MP3 inputs
  • BASS and Treble controls
  • Built in limiter and clipping indicator
  • MIC 1 priority button will lower the music when talking into the mic when priority is activated
  • 6 segments signal level indication (-10dB, -6dB, -3dB, 0dB, limit, clip)
  • Built in fan cooling system keeps component cool at all times
  • Built in 1/4" fire input will override the system when activated in case of emergencies
  • Siren output allows you to connect a siren that would get activated in case of an emergency
  • Emergency DC 24V input terminals allow you to connect a 24V battery to power the amp in case of a power outage

Inputs and Outputs:

  • (2) Sets RCA AUX inputs
  • (4) XLR Mic inputs
  • (2) 1/4" TS inputs
  • (4) 1/4" TRS LINE outputs (one per zone) (allows you to add another amplifier or a powered sub to any zone that needs more speakers/subs)
  • Fire input
  • Siren input
  • Each zone has speaker output terminals with options for 4 ohm, 8 ohm, 16 ohm, 70v, 100v output


  • Distortion: <0.98% (@ 4ohm output 2Vrms @150Hz)
  • Signal to Noise Ratio (@ 4ohm output 1w)---65dB
  • Signal to Noise Ratio (@ 4ohm output 100w)---83dB
  • Power Requirements: 120V / 50-60Hz or DC24v
  • Frequency Response vs THD + N (Worst case, across normal bandwidth 1w @ 8ohm) : <1%
  • Weight: 25.1lbs
  • Dimensions with the included rack mount ears attached: 19" x 14.2" x 3.54" inches
  • Dimensions without rack mount ears: 17.3" x 14.2" x 3.54" inches


  • Restaurant
  • Bar
  • School
  • Offices
  • Multi room home audio system

What 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. For example, with this 440 watt / 70 volt amplifier, you can install speakers that total close to 400 watts. It does not matter if it is 20 speakers that are 20 watts each or 40 speakers that are tapped at 10 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.

Description of LCT 81C/T:

Low-Profile Lay-In 2' x 2' Ceiling Tile Loudspeaker with 200 mm (8 in) Driver
LCT 81C/T is a full-range ceiling speaker designed to lay into a 2 ft x 2 ft US-style suspended grid ceiling, with no cutting of ceiling tiles required, making for an easy and cost-effective installation with a minimum of mess. The low profile depth of only 100 mm (4 in) allows the speaker to fit in locations where deeper loudspeakers do not.

This loudspeaker is designed to provide excellent performance for paging and light-to-medium music in a wide variety of applications, including education classrooms, business music systems, retail stores, music/paging systems, airports, reception/waiting rooms, lounges, courtrooms, meeting rooms, and more.

The very high sensitivity of 96 dB provides maximum sound level, even at low tap settings. LCT 81C/T contains a 200 mm (8 in) dual-cone driver with a very high 96 dB sensitivity. The driver features a 25 mm (1 in) diameter voice coil with a Kapton coil-former and high-temperature wire for better power dissipation and long-term reliability. The speaker's built-in 10 Watt transformer provides versatility by allowing use on 100V or 70V distributed loudspeaker lines, as well as at 8 ohms (low impedance) for driving directly from a low impedance power amplifier. Adjusting is convenient via a rotary switch on the side of the rear enclosure. Two safety seismic attachment tabs are provided for securing to ceiling deck, plus 4 holes are provided -- one in each corner. The color of the perforated grille is white.


  • High efficiency 200 mm (8 in) dual-cone driver.
  • Easy lay-in installation into 2' x 2' US-style suspended grid ceilings. No cutting of ceiling tiles is necessary.
  • Perforated metal grille included.
  • Combined 70V/100V and low impedance direct operation.
  • 20 Watts at 8O (low-impedance) direct setting.
  • 10 Watt multi-tap at 70V/100V with taps at 10W, 5W, 2.5W (and 1.3W for 70V only)
  • Very low-profile at just 103 mm (4.1 in) deep, to fit into ceilings that are shallow or that contain obstructions.
  • Easy bare-wire connection in protected compartment. Wire entrance from either top or side via knock-out.
  • Very high 96 dB sensitivity turns power from small amplifiers into maximum sound level for listeners.
  • Designed for high speech intelligibility.
  • 100° coverage pattern (conical).
  • UL1480A and UL2043 certifications for use in ceiling plenum spaces.


  • Transducer: High-efficiency 200 mm (8 inch) dual-cone driver with 25 mm (1 in) diameter voice coil, Kapton coil former, and high-temperature voice coil wire.
  • Frequency Range (-10 dB): 100 Hz – 16 kHz
  • Nominal Sensitivity: 96 dB
  • Nominal Coverage Angle: 100° conical coverage (ave. 1 kHz - 4 kHz)
  • Rated Maximum SPL: 108 dB @ 1 m (3.3 ft) average, 108 dB peak (at 8O setting)
  • Nominal Impedance: 8 ohms (in Direct/Thru 8O setting)
  • Transformer Taps: 10 W, 5 W, 2.5 W @ 70V or 100V (plus 1.3 W @ 70V only)
  • Recommended Protective High Pass: 90 Hz high-pass (24 dB/oct) for 8O direct or any 70V or 100V tap setting
  • Power Capacity (at low-Z):
  • 40 Watts Continuous Program Power
  • 20 Watts Continuous Pink Noise
  • Input Connector: Bare wire inside protected in touch-proof wiring compartment.
  • Tap Selector: Rotary switch accessible from side of backcan
  • Materials: Steel rear enclosure, front baffle, and perforated grille
  • Grille Color: White
  • Safety Agency: Suitable for use in air handling spaces certified per UL1480A, Speakers for Commercial and Professional Use; UL2043, Standard for Fire Test for Heat and Visible Smoke Release for Discrete Products Installed in Air Handling Spaces; NFPA90 & NFPA70; S7232/UL Listed, Signaling Speaker.
  • Dimensions: 607 x 607 x 103 mm (23.9 x 23.9 x 4.1 in)
  • Net Weight: 7.1 kg (15.7 lbs)
  • Shipping Weight: 8.3kg ea; 16.5 kg per pair-pack (18.3 lbs ea; 36.4 lbs per pair-pack)
  • Ceiling Cutout Size: No cutout required. Speaker drops into ceiling grid
  • Suspension / Safety-Seismic: Attachment Points Two tabs on back baffle, plus 4 holes in corners
  • UPC:
  • 613817176181

WARNING: Cancer and Reproductive Harm —

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