PreSonus Ceres C4.5BT - Two-Way 4.5" Powered Speakers With Bluetooth (Pair) has been discontinued, here are some related products you might like:

4.5" Kevlar Woofer Cone for Mids & Bass

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The PreSonus Crees C4.5BT - Two-Way 4.5" Powered Speakers With Bluetooth (Pair) are designed for recreational listening of music, movies, video games and other wired and wireless Bluetooth sources such as smartphones and tablets with the push of a dedicated button. They utilise the same sound reproduction technology as that used for recording studio tracking, mixing, and mastering.

Each monitor features a 4.5" Kevlar woofer for bass/midrange with a rear-firing round bass-reflex port and a 1" silk dome tweeter for treble powered by a 25W class AB amplifier per side. When not in use the speakers can go into Energy Conservation mode and use so little energy that they meet the European ErP directive. A pair of bare wire audio connectors and the included speaker wire allow for the active left speaker to power the passive right speaker.

For wired inputs, the back of the speakers accept balanced 1/4" TRS and unbalanced RCA inputs. The front panel features a volume control and an 1/8" stereo auxiliary input for use with mobile audio devices such as MP3 players. An 1/8" stereo headphone output allows for connection of your favourite headphones. For additional low frequency sound reinforcement, a rear panel 1/4" sub output allows for connection to a separate powered subwoofer.

The back panel of the speakers also feature acoustic adjustment controls for fine tuning the speakers to your listening room. The controls include ±6 dB gain for the midrange above 100 Hz and ±6 dB for the high frequency output above 10,000 Hz. The speakers also feature professional grade protection circuits for reliable operation in a range of applications.


Inputs2x balanced 1/4" TRS phone
2x unbalanced RCA
1x stereo 1/8" TRS aux
Outputs1x set of bare speaker connectors for passive speaker
1x 1/4" subwoofer output
1x stereo 1/8" headphone output
Tweeter1" silk dome
Woofer4.5" Kevlar
Amplifier Power25 W per speaker
Frequency Response70 to 20,000 Hz
Output108 dBA
Crossover Frequency2,700 Hz
Input Impedance10,000 O
Mid Frequency DriverControl: variable (-6 to 6 dB)
High Frequency DriverControl: variable (-6 to +6 dB)
Power RequirementsSwitchable, 100 to 120 VAC at 50/60 Hz or 220 to 240 VAC at 50/60 Hz
ComplianceEuropean ErP directive
Dimensions (H x W x D)9.5 x 6.4 x 7" (241 x 163 x 180 mm)
WeightPer Pair: 15.1 lb (6.8 kg)
PreSonus Ceres C4.5BT - Two-Way 4.5" Powered Speakers With Bluetooth (Pair)
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