The Bogen Communications X300 is a Black Max Series rackmount 70V power amplifier offering powerful, full-range amplification for constant-voltage systems in restaurants, retail stores, offices, and more. Its efficient Class-H amp design delivers 300W to each of the two channels while maintaining low noise and distortion. Per-channel volume control, input sensitivity selection, and 60 Hz low-cut filters allow easy optimization of levels and tone. The 3-pin pluggable terminal strip inputs are electronically balanced, while the 5-pin barrier strip output is transformerless.

Independent variable-speed fans keep the X300 cool even when mounting does not allow for open space above or below the amplifier. Built-in voltage stabilization and multiple protection circuits ensure reliable operation hour after hour. The auto-sleep feature makes this amp ideal for continuously powered systems. Integrated power sequencing for controlling multiple Black Max amps in large systems helps prevent in-rush problems. These features are packed into a heavy-duty steel chassis that occupies just two rack spaces.

Dual 300W 70V Output Channels    Efficient Class-H Amplifier Design    Low Noise & Distortion    Independent 60 Hz Low-Cut Filters    Adjustable Volume & Input Sensitivity    Independent Variable-Speed Cooling Fans    Balanced Inputs, Transformerless Outputs    Built-In Power Sequencing Input    Multiple Protection Circuits    Voltage Stabilization & Sleep Mode

300W per channel at 70V with independent low-cut filters on each input

Low noise and distortion with high slew rate

Highly efficient Class-H amplification driven by a conservatively rated toroidal power transformer

Transformerless direct drive outputs

Electronically balanced high-impedance inputs

Large output heat sinks and dual independently controlled, high-output, variable-speed cooling fans provide reliable cooling and quiet operation while reducing dust accumulation

Internal electronic components are located outside of the forced air stream flow to ensure minimal required maintenance and cleaning

Front-mounted fan filters are easily removed for cleaning

Multiple electronic protections including overcurrent, DC voltage, and thermal circuits

Clip/limiting circuit continuously monitors the amount of distortion in the output signal and reduces input levels as the amplifier approaches clipping

Back-Slope AC voltage stabilization regulates the AC energy supplied from the power toroid to improve system performance and reliability despite varying AC supply conditions

Defeatable energy-conserving sleep mode with instant-on return signal operation reduces wasted heat production in paging systems with intermittent use

Pluggable terminal strip for sequencing wiring in multi-amp installations

Sequential turn-on feature minimizes in-rush current from the AC power mains when multiple Black Max amplifiers are daisy-chained together for sequential turn-on; the first amplifier in the series will control the powering up of the other amplifiers with approximately one second of delay between units

Directly stackable, mounts in two rack spaces without need for extra space above or below

Related Questions and Answers

Q: 1. Can I use manual focus with Olympus om D cameras?

A: Yes, one can manually focus the Panasonic Lumix G X Vario PZ 14-42mm f/3.5-5.6 ASPH. POWER O.I.S. Lens by using the lever on the side of the lens for focusing. This can be done on Olympus cameras as well.

Q: 2. How do you use this lens with graduated filters?

A: I used it without any additional filters.. it fit well with the Blackmagic pocket cinema camera.I suppose one can get micro 4-3 adapters and some converters to hook up your filter.I liked the lens.. the balck magic camera still was not fully integrated ( a few controls did not work).when you shut off the power the lens did not retract fully.... This is not the lens problem but the camera problem.

Q: 3. Can I install a remote desktop app (Anydesk) and control it over a network?

A: That is not possible.

Q: 4. Does the camera draw on both batteries simultaneously, or does it draw on one until drained then switch?

A: It draws on them one at a time, which one it draws on first is up to you depending on the order you choose in the menu.

Q: 5. blackmagic micro studio 4k compatible?

A: Yes it is. This lens has an MFT mount, which is the kind of mount on B&H # BLMCRSTCAM.https://bhpho.to/2mqnO4e

Q: 6. Can the bmdp4k zoom this lens ? (not using the lens switch)

A: The lens can be used with a digital camera compatible with the lens mount standard for the“Micro Four Thirds System.

Q: 7. Does anyone know how the size of this on EM1 compares to X1 ? in the hand.

A: The dimensions of the Olympus OM-D E-M1 Mark II Mirrorless Micro Four Thirds Digital Camera with the Olympus HLD-9 Power Battery Grip would be approximately 5.6 x 5.3 inches. While you do not list the full brand/model name of the X1 item you listed above, if you are referring to the Leica X1 Digital Compact Camera, its dimensions would be 4.9 x 2.3 x 1.3" in inches. As such, the Olympus OM-D E-M1 Mark II with the HLD-9 would be larger in your hand compared to the Leica X1 Digital Camera.

Q: 8. Will this work with the Black Magic Ursa? What is the power source? Will it work on an EF mount?

A: It works well on my Black Magic Pocket Cinema Camera with the MFT mount. The camera knows how to activate the IS while recording. I use the on-lens zoom controls. Power is through the normal mount connectors. I don't know if you can get an EF adaptor whch would pass the signals.

Q: 9. My audio and video are out of sync. Is there a fix?

A: Yes there is an audio delay function built into the switcher. This will allow you to adjust the timing of the audio to match your video. please check page 22 of the manual for more information.

Q: 10. Can the device be battery powered? If so, what battery / portable power solution is recommended?

A: Yes. The challenge is finding the proper size DC barrel that would allow one to come out from a V-Mount or Gold Mount Battery's d-tap connection and into the switcher's DC power input.