Dayton Audio KABD-4100 4 x 100W All-in-one Amplifier Board

Highlights

• All-in-one board design reduces space needed for audio DIY projects
• Wire harnesses make installation quick and simple with no soldering required -- includes power, Bluetooth reset button, and two sets of speaker cables
• Separate ports for powering by battery or direct DC input from 12 to 39V power source
• Program with SigmaStudio software and Dayton Audio ICP1 or KPX boards (sold separately)
• Efficient 4 x 100W of power from the two TDA749x chipsets delivers a clean powerful signal for creating up to 4-channel audio projects
• Cascading option creates up to 8 channels for your audio project

Product Details

Dayton Audio KABD-4100 4 x 100W All-in-one Amplifier Board with DSP and Bluetooth 5.0 aptX HD

Leverage the convenience of Bluetooth 5.0 and powerful DSP to truly create customizable audio projects with the accessibility of wireless streaming. The Dayton Audio KABD-4100 combines a 4 x100 W amp board, Bluetooth 5.0, and an ADAU1701 digital signal processor all in one amp board. The four-channel board provides the opportunity to expand your project in ways impossible before. Cascade the board to create up to 8 channels of audio. The design of the KAB-4100 enables you to customize your next DIY audio project's sound using SigmaStudio software and Dayton Audio KPX or ICP1 Bluetooth programmer.

What's New?

• Bluetooth 5.0 with aptX HD for high quality and long-range streaming
• Optimized for low power consumption for battery-powered projects
• External potentiometer ports allow easy integration of volume, tone control, filters, and more for any project

Other Included Features

• Reliable and power-efficient Class D amplification
• Easy to use plug-and-play solderless configuration
• Integrated ADAU1701 DSP chip for ultimate signal control and customization via the free SigmaStudio software
• DSP controlled line-level output for connecting powered subwoofers or external amplifiers
• Bluetooth 5.0 or line-level AUX input accommodates wireless and wired audio connection
• Cascading options allows up to 8 channels of audio

High-Quality Audio Performance
The Dayton Audio KABD-4100 DSP Amplifier Board delivers high-quality sound without drawing a lot of power. This is due to the highly efficient TDA749x Class D amplifier chips. The TDA749x operates at 89.5% efficiency, thus eliminating the need for a large heat sink and reducing its overall size. Its high efficiency becomes a major advantage when powering from batteries as it prolongs the playtime of a single charge. Its ultra-low distortion and pop-free performance make this hi-fi amplifier board an integral asset in any quality audio build.

Integrated DSP Chip

Highest Quality Bluetooth

Adding optional potentiometer controls has never been easier

• Completely customizable with SigmaStudio, external potentiometers can be programmed for on the fly adjustment of volume control, tone controls, high and low pass filters and so much more
• Set limits on max volume to prevent accidental overloads to your speakers
• Can’t decide on one fixed treble level for your portable speaker? Put a treble knob on it and adjust it on the spot
• Love the bass during the day, but want to tone it down at night? Add a bass knob!
• Set high/low pass variable frequency filters to fine-tune your sound
• Potentiometers headers can also be configured for toggle switches or push buttons for toggling presets or custom sound modes

What do I need to connect my KABD Amplifier to SigmaStudio?

• A Windows PC / Laptop with an available USB Port
• The free SigmaStudio download
• A KABD Amplifier and recommended power supply 
• A compatible USBi programmer and USB cable
• Dayton Audio DSPB-ICP1 (Micro USB)
• Dayton Audio KPX (USB Type C)

 

Bass Optimization 

Low pass and infrasonic (high pass) filters offer total control over the range your woofers play, and precise PEQ can optimize the bass response of the woofer to your tastes. EQ could even be used to apply room equalization to improve the accuracy of your speaker’s bass performance inside of a specific room.

 

Dynamic Bass Enhancement

Dynamic Bass Enhancement increases the proportion of bass at lower volumes while decreasing the proportion of bass at higher volumes. A common practice in commercial Bluetooth speakers, this allows for a full, bass-heavy sound from small drivers or exciters at lower volumes, but protects them from being overdriven at higher volumes.

SuperBass

SuperBass algorithm uses principles of psychoacoustics to increase the perception of bass by generating harmonics above the chosen crossover frequency. This can be especially useful when using small drivers or exciters.

Bass Boost

Analog Device’s Dynamic Bass Boost Algorithm will provide more bass boost at lower input levels than it will at higher volumes. This type of boost is incredibly common in portable speakers, creating the effect of the speaker sounding full and bass-y at low volumes, but preventing overdriving the speaker at higher volumes. If this block is too confusing or in-depth for you, see the next page for a simpler version.

 

Precise Tonal Control

This could include things such as selective bass boosts, treble boosts, or even just precise filters to correct other errors in frequency response.

Parametric EQ

There are many types of filter blocks, however, the parametric EQ block allows for graphic, easy to use, and precise adjustment of numerous bands of peaking filters, high/low pass filters, tone shelves, and more.

Potentiometer Controlled Filters

Control your filters with the external potentiometers which will adjust the filter based on the position of the potentiometer. This filter works by pre-calculating a specific number of filters based on user parameters and then storing them into the DSP memory

 

Package Includes

• One Dayton Audio KABD-4100 DSP Amplifier Board
• One 4-conductor power cable 20"
• Two 6-conductor speaker cable 20"
• One Bluetooth reset button with a 20" cable

 

Specifications: Power output (w/ 36 VDC power supply): 4 x 100W @ 6 ohms  • SNR: 97 dB 2 x 50W @ 8 ohm, THD+N=1%, 26 dB, A-weighting • THD+N: 0.07% 10W @ 6 ohm 1 kHz 26 dB • Frequency response: 20 to 20,000 Hz (±3 dB) • Impedance: 4-8 ohms • Recommended power supply: 36 VDC, 5-10A • Working Voltage: 10 to 39 VDC • Board mounting holes center to center spacing: 111.76 x 81.28 mm • Hole diameter: 3.8 mm • Dimensions: 12,2 cm L x 9,1cm W x 3,8 cm H.