User manual
JBL Basic Two-Zone, 70V Ceiling Sound

User Manual for JBL Basic Two-Zone, 70V Ceiling Sound System for up to 1,000 sq ft. sq ft.

• Product category: Installed Sound Kits JBL
• Brand: JBL
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
• Authorized service for JBL Installed Sound Kits

Product description

• 4 x JBL Control 26CT - Ceiling Speaker with Transformer (Pair) Capable of high-power handling and low distortion, JBL's ceiling mounted Control 26CT is ideal for upscale installs. Its performance ability ensures balanced sound throughout the listening area. The unit includes a multitap transformer for 70/100V systems.The Control 26CT offers a very broad 110° area of coverage and is designed for longer, cooler operation, which allows for greater long-term power handling. A simpler and less-expensive install is achieved due to the coverage capability of the Control 26CT.
  • 150 Watts power capability
  • Multi-tap transformer for 70/100V systems
  • 75 Hz to 20 kHz frequency range (-10 dB)
  • Coaxially mounted 6.5" woofer with butyl rubber surround and 3/4" titanium coated diffraction-loaded tweeter
  • High power, wide-frequency response and low distortion for high sound level capability
  • Wide coverage allows for fewer speakers, reducing the cost of the installed sound system without sacrificing performance
  UPC: 050036904087
• JBL CSMA 280 Commercial Series Mixer/Amplifier Designed for commercial and industrial use, the CSMA 280 Commercial Series Mixer/Amplifier from JBL is a mixer/amplifier with eight mixer-channel inputs and two output channels. It's capable of reaching 80W of peak power with 10W per channel. The unit's front panel sports volume controls for each channel, as well as two master volume adjustment knobs, two sets of bass and treble controls, and a power switch. The volume controls are illuminated so they can be seen and operated in darkened environments.
  
  The amplifier, capable of driving both eight and four Ohm loads, can be used with 70V and 100V distributed audio systems without the need for a separate transformer. On its back panel you'll find euroblock connections for mic/line inputs, as well as unbalanced RCA inputs, speaker connections, dip switches for input routing, and more. The unit is also equipped with two RJ45 connectors for use with JBL CSR-V in-wall volume controls (available separately).
  
  This Commercial Series mixer/amplifier boasts such features as voice activating ducking (useful for paging over background music), priority muting for channels one and five, and a sleep mode which automatically powers down the unit when no audible signal has been received for longer than 30 minutes. Also, with two auxiliary outputs, you may connect to an additional amplifier, though the master volume and tone controls will have no bearing on the resulting signal.
  Channel Modes
  • 8 inputs with 2 outputs of 80W of power.
  Controls
  • Independent Bass and Treble controls for each output channel.
    Input level and output volume controls.
  Hi-Z Switch
  • The Hi-Z switch will switch in the built-in output transformer allowing the unit to drive 70V or 100V speaker systems directly when connected to the appropriate output terminals.
  Phantom Power
  • Phantom power (27 V) can be applied to all mic inputs by turning on Phantom Power within the dip switches.
  VOX Function
  • Voice activated ducking is available on input channel 1 and channel 5. The audio input level required to activate ducking is set using the trim pot on the rear panel. Adjusting in the counter-clockwise direction will reduce that level, while the full clockwise setting will disable the VOX function.
  Priority Muting
  • Channels one and five may be used as priority channels, muting all other channels when pins 4 and 5 are shorted using a switch closure. If the amplifier has entered sleep mode due to inactivity, invoking priority will also bring the unit out of sleep and ready for transmitting an announcement.
  Remote Volume Control
  • Remote volume control can be implemented using a CSR-V controller connected via an Ethernet cable to the RJ45 connector on the back panel.
  Sleep Mode
  • This unit is designed to go into sleep mode after approximately 30 minutes operating with no signal at any of the inputs. Return of signal (-40 dBu or 7.75mVRMS) to any input will wake the unit. Also, a switch closure across the priority input pins will return the unit to normal operating mode.
  AUX output
  • An auxiliary output that you may connect to additional amplifiers is available. The audio signal is the mix of the input channels. Note that the master volume control and tone controls will have no effect on the aux output signal.
  Manufacturing
  • Crown's DriveCore technology
    HARMAN's GreenEdge environmental standards
  Certifications and Approvals
  • Lead-free RoHS standards, utilizing recycled metals, and using an energy-saving powder coat process
    Energy Star certified
  UPC: 871015007373
• Pyramid High Quality 20 Gauge Speaker Zip Wire (500' Spool) This is Pyramid High Quality 20 Gauge Speaker Zip Wire (500' Spool) for connecting speakers to a source device.
  • 20 Gauge
  • 500' Spool
  UPC: 068888701327

• 4 x Control 26CT - Two Way Vented Ceiling Speaker with 6.5" Woofer for use with 70/100V Audio Distribution (Pair) ezwzctxabqyewzsqfx
• 2 x Tile Support Rails
• 2 x Cutout Templates
• 2 x Paint Shields
• 2 x C-Shaped Support Backing Plates
• 2 x Removable Locking Wiring Connectors
• Limited 5-Year Warranty

• CSMA 280 Commercial Series Mixer/Amplifier

• Pyramid - High Quality 20 Gauge Speaker Zip Wire (500' Spool)

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Technical parameters

• 4 x JBL Control 26CT - Ceiling Speaker with Transformer (Pair)

  Active or Passive	Passive
  Frequency Response	75 Hz to 20 kHz
  Power Capacity	150 W Program 75 W Pink Noise
  Maximum Sound Pressure Level (SPL)	107 dB @ 3.3 ft / 1 m
  Nominal Sensitivity	89 dB SPL, 1 W @ 3.3 ft / 1 m
  Transformer Taps	70 V Taps: 60, 30, 15, 7.5 W 100 V Taps: 60, 30, 15 W
  Low-Frequency Driver	6.5" / 165 mm Polypropelene-coated, 1" coil on aluminum former
  High-Frequency Driver	3/4" / 19 mm Titanium coated polyester
  Enclosure Material	Formed steel backcan with medium impact polystyrene baffle/rim, fire rated UL94V-0
  Input Connections	Removable locking connector with screw-down terminals 2 x input terminals and 2 x loop-thru output terminals Max. wire 12 AWG (2.5 mm²)
  Environmental	In accordance with IEC60849 / EN60849. Suitable for use in air handling spaces, per UL2043, UL1480, NFPA90, NFPA70A
  Dimensions	8.3 x 9.9" / 210 x 252 mm 7.5" / 190 mm front of ceiling tile to back of backcan
  Weight	7.5 lb / 3.4 kg each CT: 10 lbs / 4.2 kg each

  Box Dimensions (LxWxH)	26.5 x 12.0 x 11.5"

• JBL CSMA 280 Commercial Series Mixer/Amplifier

  Maximum Output Power	80 W per channel into 4 Ohms or 8 Ohms, 1 kHz, ≤ 0.5% THD
  Insertion Loss	1 dB maximum for 70 and 100 V outputs
  Continuous Power	10 W per channel
  Line Output Level	5.0 V RMS into 10 kOhms
  Input Sensitivity	To obtain full rated power at 8 Ohms (or 5 VRMS to line output) Mic Input: 3 mV RMS Line Input: 775 mV RMS RCA Input: 300 mV RMS
  Number of Channels	Input: 8 Output: 2
  Frequency Response	Measured at 2.83 V RMS into rated load impedance at any output 4/8 Ohms Output: 20 Hz - 20 kHz, ±2 dB 70 V/100 V Outputs: 80 Hz - 15 kHz ±2 dB Line Out: 20 Hz - 20 kHz, ±1 dB
  Total Harmonic Distortion (THD)	Measured at 2.83 V RMS into rated load impedance at any output Power Amplifier Output: <0.5%, 20 Hz to 20 kHz Line Output: 0.05% typical
  Signal to Noise Ratio	> 90 dB
  Nominal Input Impedance	Mic: 400 Ohms Line: 20 kOhms (balanced) RCA: 50 kOhms
  Minimum Load Impedance	Low Impedance Output: 4 Ohms 70 V Output: 60 Ohms 100 V Output: 120 Ohms
  Crosstalk	-70 dB @ 1 kHz
  Controls	Front Panel: 8 x Input level rotary knobs 2 x Output volume-attenuating knobs 1 x Power switch 2 x Bass potentiometers 2 x Treble potentiometers Rear Panel: 2 x Input-routing dip switches (including phantom and Hi-Z switches) 8 x Mic/Line selector switch 2 x Vox adjustment switches
  Indicators	Front Panel: 8 x Input signal presence ring, green 2 x Output volume ring, green 1 x Power switch ring, green/blue
  Connectors	Rear Panel: 1 x IEC power input 2 x Aux out connection points 6 x 3-pin euroblock connectors 2 x 5-pin euroblock connectors 6 x Dual RCA input connectors 2 x RJ45, remote volume
  Operating Temperature / Humidity	32 to 95°F / 0 to 35°C, 95% RH (non-condensing)
  Storage Temperature	-4 to 185°F / -20 to 85°C
  Phantom Power	27 VDC
  AC Input	100-240 VAC, 50/60 Hz
  Dimensions (W x D x H)	17.2 x 11.9 x 1.7" / 436.9 x 302.3 x 43.2 mm
  Weight	Approximately 11.9 lb / 5.4 kg

  Box Dimensions (LxWxH)	20.5 x 16.3 x 5.2"

• Pyramid High Quality 20 Gauge Speaker Zip Wire (500' Spool)

  Length	500' Spool
  Gauge	20 Gauge

  Box Dimensions (LxWxH)	6.6 x 6.6 x 3.5"

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