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Description
Crown CDi 4|300BL 4-Channel DriveCore Series Power Amplifier with BLU Link (300W)The 300W Crown Audio CDi 4 300 4 Channel DriveCore Series Power Amplifier with BLU Link utilizes technology derived from the flagship Crown DriveCore Install series amplifiers, providing an impressive mix of high performance, rich feature set, and competitive cost. The CDi DriveCore 4 300 offers streamlined functionality for most small to medium sized installation such as restaurants, retail stores, and more. The DriveCore integrated circuit
The 300W Crown Audio CDi 4|300 4-Channel DriveCore Series Power Amplifier with BLU Link utilizes technology derived from the flagship Crown DriveCore Install series amplifiers, providing an impressive mix of high-performance, rich feature set, and competitive cost. The CDi DriveCore 4|300 offers streamlined functionality for most small- to medium-sized installation such as restaurants, retail stores, and more.
The DriveCore integrated circuit eliminates hundreds of components within the amplifier, reducing the variability of component values and increasing reliability, resulting in remarkable audio fidelity from an efficient design. The 4-channel amplifier is simple to use and includes a network control & monitoring, an advanced DSP circuit, and an easy-to-use, front-panel interface. The amplifier is equipped with two BLU Link RJ45 connectors, which can receive and send 256 fault-tolerant audio channels.
The amplifier is capable of driving up to 100Vrms speaker loads without requiring a transformer and comes pre-loaded with JBL speaker tunings to help make installations quicker and easier. The CDi 4|300 features an Ethernet port for using HARMAN's HiQnet Audio Architect software for configuration and operation over a standard TCP/IQ network. The rear panel includes terminal block inputs and barrier strip outputs.
Features
- DriveCore Technology: patented DriveCore integrated circuit combines hundreds of discrete circuits into one chip for better performance, lower power consumption, and improved reliability
- BLU link digital audio transport—up to 256 channels of digital audio over CAT 5e cabling
- Supports configuration and control using HiQnet Audio Architect
- Monitoring and control over TCP/IP
- Color LCD and front-panel user interface for amplifier configuration, control, and monitoring
- Programmable GPIO (general purpose input/output) control port
- Digital signal processing (input/output EQ filters, crossover, input/output delay, LevelMAX limiters)
- Support for importing of FIR filter coefficients
- 20 device presets—1 factory and 19 user
- 96 kHz/32-bit floating-point signal processing
- Universal power supply with PFC for reduced current draw and industry-leading efficiency
- Power saving modes
- Remote power off—Sleep mode activated via AUX port
- 70/100Vrms direct drive
- Each channel independently configurable for low z or high z operation
- Advanced protection circuits—amplifier and loads are protected against shorted outputs, DC, mismatched loads, overheating, over/undervoltage, and high-frequency overload
- Three-year, no-fault transferable warranty—your investment is fully protected
- Complies with GreenEdge by HARMAN—environmentally friendly practices in design, manufacturing, and packaging complement energy-efficient operation
- Support for BSS Audio Soundweb Contrio Ethernet wall controllers
- Included speaker tuning for various JBL speaker models
Specifications
| Amplifier Power Rating | |
| Load Impedance / Voltage |
Performance
| Protections | |
| Frequency Response | |
| Damping Factor | |
| Input Sensitivity | |
| Input Impedance | |
| Max Gain | |
| Max Input Level | |
| SNR | |
| THD | |
| Intermodulation Distortion | |
| Crosstalk | |
| Common Mode Rejection Ratio (CMRR) |
Signal Processing
| DSP | |
| Audio Delay | |
| Crossover | |
| EQ | |
| Limiting |
Connectivity
| Analog Audio I/O | |
| Digital I/O | |
| USB I/O |
Power
| AC Input Power | |
| AC Power Connector | |
| Current Consumption | |
| Power Consumption |
Physical
| Display & Indicators | |
| Rackmount Size | |
| Cooling | |
| Thermal Dissipation | |
| Dimensions | |
| Weight |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Sensitively written and beautifully illustrated
Format: Hardcover
Why Do We Cry? is an sweetly illustrated and sensitively written book for young readers. Originally published in Spanish in 2018, this English translation released 7th April 2020 from Kids Can Press is 34 pages and available in hardcover and ebook formats.
The book takes the form of a dialogue between a mother and son about why people cry and why it's good to examine and experience negative emotions so we can process them and what function tears (and crying) actually serve physiologically and emotionally. The text by Fran Pintadera (weblink in Spanish) is supported and enhanced beautifully by the nuanced illustrations by Ana Sender.
This would make a superlative reading circle, library group, or classroom read for youngsters. There's a short discussion resource at the back of the book which includes some science based information on tears and the physiological functions they perform.
Learning to process strong emotion in a positive and constructive manner is -vital- for development. I appreciated that the dialogue was sensitively handled and that the author chose to make the child male was a nice touch. I think that this could be a very valuable book *especially* given our current pandemic world situation.
Five stars. Beautiful little book with universal relevance.
Disclosure: I received an ARC at no cost from the author/publisher for review purposes.
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Reviewed in the United States on April 19, 2020
★★★★★ 5
A thoughtful book to normalize tears
Format: Hardcover
I'm a child life specialist I have heard many parents and providers tell kids (and teens) to "stop crying" or "there's nothing to cry about" or some other variation of that hurtful phrase. I now work with children who have a parent with a serious illness and those experiencing grief. Why Do We Cry? is an amazing resource that is relevant to the majority of situations experienced by kids in my practice. It is beautifully illustrated with images that reflect the emotion in the written content. This book embraces the many reasons people cry without overstepping a boundary by trying to explain or justify the feelings. I love the subtlety of normalizing a variety of feelings and the gentle truth that sometimes we cry without knowing why. I highly recommend this book!
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Reviewed in the United States on December 10, 2022
★★★★★ 5
5 Stars!
Format: Hardcover
Mario asks his mother, “Why do we cry?” and she goes on to tell him all the different reasons that we do cry. Some of the reasons are a bit metaphorical, and might be harder for younger children to understand, but the illustrations help in those cases. (The book is aimed for 3-7 year olds, but I think the story is more fitting for ages 5 and up). The illustrations correspond well with the words on the page.
The story lets children know that it is ultimately ok to cry. I feel that the book showcasing a boy asking about crying is wonderful as some boys are told NOT to cry.
A few added pluses:
There is also a lesson that scientifically explains about tears so children can understand some of the varying reasons that tears exist. There is also a small interactive section with activities dealing with tears that will help children express their imagination.
Many thanks to Kids Can Press for granting me an e-arc to read that I chose to review. A+ on this children’s picture book!
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Reviewed in the United States on April 7, 2020
★★★★★ 4
Learn why we cry in this great kids book!
Format: Hardcover, Format: Hardcover
I received a digital copy of this book from the publisher. All thoughts and opinions are my own.
"Some days we cry because we call out for a hug but all we get back is an echo."
Why Do We Cry? begins with a boy asking his mother why we cry. There are many answers to such a question and the mother helps the boy explore the many reasons why we may shed tears.
As the mother explains the reasons why we cry, the illustrations become a bit surreal, to show the emotions and feelings associated with crying, from sadness to anger to grief. The mother compares and contrasts, all the while weaving a poetic story about her own life or memories and emotions.
This book reminds us that it is okay to cry, that crying can be a release, a way to heal, or let go. It helps us understand the difference between emotions and how they affect us.
There's an educational spread at the end of the book that teaches us the different types of tears, one of which--emotional tears-- is featured in this book, what they are made of, and even how much they weigh!
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Reviewed in the United States on June 12, 2020
★★★★★ 5
A Beautiful & Informative Exploration of Tears and Feelings
Format: Hardcover
A nonjudgemental and supportive exploration of the reasons we cry accompanied by imaginative and thoughtful art. Beautiful and informative, the final two pages include scientific information on tears to complement the emotional context of the main part of the story. Suitable for ages 3 to 7.
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Reviewed in the United States on August 25, 2020
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