Features

• Designed for music enthusiasts, gamers, home theater, and personal studios, PreSonus® Ceres™ C3.5BT and C4.5BT active speakers deliver professional sound quality that lets you hear your music clearly and accurately.
• With wireless Bluetooth audio streaming and a front-panel 1/8” stereo input, they are perfect for use with tablets, smartphones, and other computers.
• Unlike most comparably priced speakers, Ceres BT-series speakers have EQ that lets you create a more accurate listening environment and provide a dedicated Sub Out to easily integrate a subwoofer.
• Energy Conservation mode saves energy when the speakers are not in use and meets the European ErP directive.
• The Ceres C3.5BT and C4.5BT feature 3.5-inch and 4.5-inch Kevlar™ low frequency transducers, respectively.
• Both models have 1-inch, low-mass, silk-dome tweeters and responsive 25W Class AB amplification per speaker.
• In addition to the 1/8” stereo input, the front panel sports a 1/8” stereo headphone output and a volume control.
• The rear panel is dominated by a round bass-reflex port and hosts balanced ¼” TRS and unbalanced RCA inputs and the ¼” balanced TRS subwoofer output.
• Protection features include RF interference, output current limiting, over-temperature, transient, and subsonic protection.
• The Ceres C4.5BT delivers up to 108 dB SPL (maximum continuous), and the C3.5BT supplies up to 105 dB SPL.
• Frequency response is rated at 70 Hz to 20 kHz for the C4.5BT and 80 Hz to 20 kHz for the C3.5BT.PreSonus Ceres C4.5BT

Specifications

• Inputs                                                 : 2x balanced 1/4" TRS phone              
•                                                           : 2x unbalanced RCA        
•                                                           : 1x stereo 1/8" TRS aux
• Outputs                                              : 1x set of bare speaker connectors for passive speaker      
•                                                           : 1x 1/4" subwoofer output                                        
•                                                           : 1x stereo 1/8" headphone output
• Tweeter                                              : 1" silk dome
• Woofer                                               : 4.5" Kevlar
• Amplifier Power                                  : 25 W per speaker
• Frequency Response                          : 70 to 20,000 Hz
• Output                                               : 108 dBA
• Crossover Frequency                         : 2,700 Hz
• Input Impedance                                : 10,000 Ω
• Mid Frequency Driver Control              : variable (-6 to 6 dB)
• High Frequency Driver Control             : variable (-6 to +6 dB)
• Power Requirements                           : Switchable, 100 to 120 VAC at 50/60 Hz or 220 to 240 VAC at                                                                50/60 Hz
• Compliance                                        : European ErP directive
• Dimensions                                        : (H x W x D) 9.5 x 6.4 x 7" (241 x 163 x 180 mm)
• Weight Per Pair                                  : 15.1 lb (6.8 kg)

What's in the box?

• PreSonus Ceres C4.5BT - Two-Way 4.5" Powered Speakers With Bluetooth (Pair)
• Power Cord
• Bare Speaker Cable Pair For Connecting Passive Speaker
• Stereo 1/8" To RCA Cable
• 1/8" to 1/8" Stereo Cable
• 2 x Sets of Rubber Feet
• 1/8" to 1/4" Stereo Adapter
• Limited 1-Year Warranty