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Dayton Audio KABD-250 2 x 50W All-in-one Amplifier Board with DSP and Bluetooth 5.0 aptX HD
Brand Dayton Audio
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Product Description
Manufacturer Part Number: KABD-250
Dayton Audio KABD-250 combines a 2 x 50W amp board, Bluetooth 5.0 and a ADAU1701 digital signal processor all in one amp board. This enables you to customize your next DIY audio project's sound using SigmaStudio software and Dayton Audio KPX or legacy ICP1 Bluetooth programmer.
Key Features:
Overview:
Dayton Audio KABD-250 2 x 50W All-in-one Amplifier Board with DSP and Bluetooth 5.0 aptX HD
Dayton Audio KABD-250 Amp Board The Next Level of DSP Amplification
Leverage the convivence of Bluetooth 5.0 and powerful DSP to truly create customizable audio projects with the accessibility of wireless streaming. The Dayton Audio KABD-250 combines a 2 x 50W amp board, Bluetooth 5.0, and an ADAU1701 digital signal processor all in one amp board. This enables you to customize your next DIY audio project's sound using SigmaStudio software and Dayton Audio KPX or legacy ICP1 Bluetooth programmer.
The new Dayton Audio KABD series of boards all provide integrated Bluetooth 5.0 with aptX, DSP, and plug-n-play hookup sockets. The line comes with a 2x30W, 2x50W, 4x30W, and 4x100W versions. Check out what you can build with the all new KABD line.
All-in-one KABD-250 Amp Board with DSP & Bluetooth
The KABD-250 replaces the Dayton Audio DSPB-250 with a large array of new features and functionality. The KABD-250 provides high quality Bluetooth steaming, external potentiometers, easily programmable DSP, and is optimized for a longer battery life.
Other Included Features
The Dayton Audio KABD-250 DSP Amplifier Board delivers high quality sound without drawing a lot power. This is due to the highly efficient TPA3116 Class D amplifier chip. The TPA3116 operates at 88% 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..
Unlike other amplifier boards, the Dayton Audio KABD-250 includes a built-in ADAU1701 DSP chip. Create nearly limitless possibilities of EQ, crossover, bass enhancement, time alignment and more thanks to the ADAU1701 DSP chip. Make advanced crossovers with ease without capacitors, inductors, or preamp boards, and get almost immediate feedback on how your project sounds. SigmaStudio software and Dayton Audio DSPB-ICP1 or KPX programming boards (sold separately) combine together to let you set audio parameters to produce hi-fi quality sound. Download SigmaStudio into your desktop or laptop computer and plug the small ICP1 or KPX board into the USB port using a USB cable (sold separately). To quickly adjust the sound there are four potentiometers (sold separately) that plug into four sockets on the KABD-250 amp board.
The Dayton Audio KABD-250 includes a built-in Qualcomm Bluetooth 5.0 module with aptX HD. The advantage of Bluetooth 5.0 is its low power consumption which prolongs the playtime of battery powered builds. The streaming audio quality rivals that of CDs since the Bluetooth chip supports aptX, aptX HD, aptX LL, SBC & AAC. High receive sensitivity with RF power up to 9 dBm and -90 dBm, and on board antenna insure stable wireless connectivity up to 15m (50ft.) On board external antenna jack enables the KAB board to be mounted in a metal enclosure with an external antenna (sold separately). Designed and built for Bluetooth demonstration purposes, this fully functioning module provides a turn-key approach to Bluetooth certification for consumer goods. If the application of this board is for the hobbyist or industrial purposes then nothing is required to enjoy the full convenience of pairing and streaming high quality Bluetooth audio. The KABD-250 is also CE and FCC ready for certification purposes.
Included with the KABD-250 are three wire harnesses: one for DC power, a Bluetooth reset button, and the other for connecting to stereo speakers. For many users, these cables are all that is needed to complete a project. Since they have additional on board connectors, wiring harnesses (sold separately) are available to speed-up installation and create confident connections without soldering. Dayton Audio also offers a variety of accessories with robust features to make installation even easier. Find out more about optional accessories below.
Although your KABD amplifier houses its own ADAU1701 DSP chip, to communicate with your PC, a USBi programmer is required. Dayton Audio has two compatible programmers -- the DSPB-ICP1 and the KPX. The programmer can be thought of as the bridge between your PC and your DSP chip so that they can communicate.
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 increases the proportion of bass at lower volumes, while decreasing the proportion of bass at higher volumes. 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 algorithm uses principles of psychoacoustics to increase perception of bass by generating harmonics above the chosen crossover frequency. This can be especially useful when using small drivers or exciters.
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 prevents 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.
This could include things such as selective bass boosts, treble boosts, or even just precise filters to correct other errors in frequency response.
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.
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
Use this full function, adjustable amplifier board with built-in DSP chip and Bluetooth 5.0 in endless wireless audio applications that seem impossible to produce the right sound quality. So if you're a hobbyist or manufacturer enjoy presetting this full functioning 2 x 50W DSP amplifier board to peak performance in your finished product. The KABD-250 is also CE and FCC ready for certification purposes. To add more channels to your project use the line output socket with another amp board using wiring kit KABD-SPF (sold separately). Examples of applications include:
SigmaStudio Programming Guide
Need more inspiration?
For even more ideas check our project gallery full of our community of DIY audio enthusiast projects
Power Paths For portable applications, there are three battery holder/charging boards which permit the connection of li-Ion rechargeable batteries to power the board. First is the Dayton Audio LBB-3v2 3-cell 18650 battery holder/charger board that is the same size as the KABD-250 which makes it easy to stack the boards with standoffs. This battery board must use a 5 to 24 VDC power supply. If you desire more wattage output, use the 5-cell 21 VDC Dayton Audio LBB-5Sv2 or LBB-5v2 board. They work with 5 to 24 VDC power supplies. The LBB-5S uses 18650 Li-Ion batteries, and the LBB-5 uses 26650 Li-Ion batteries which delivers more play time. These portable power sources are highly recommended since all three provide under/over voltage protection.
Please note: To achieve power output briefly plug in the recommended power supply into the battery boards after the batteries are installed or when the batteries are removed and reinstalled.
Specification:
Manuals & Resources:
Dayton Audio KABD-250 combines a 2 x 50W amp board, Bluetooth 5.0 and a ADAU1701 digital signal processor all in one amp board. This enables you to customize your next DIY audio project's sound using SigmaStudio software and Dayton Audio KPX or legacy ICP1 Bluetooth programmer.
Key Features:
- All-in-one board design reduces space needed for audio DIY projects
- Plug-N-Play JST-PH and Molex Mini-Fit Jr wire harnesses make installation quick and simple -- includes power, Bluetooth reset button and speaker cables
- Separate ports for powering by battery or direct DC input from 12 to 24V power source
- Program with SigmaStudio software and Dayton Audio KPX (sold separately)
- Efficient 2 x 50W of power from the TPA3116 amp chip
- 5-year Dayton Audio warranty
Overview:
Dayton Audio KABD-250 2 x 50W All-in-one Amplifier Board with DSP and Bluetooth 5.0 aptX HD
Dayton Audio KABD-250 Amp Board The Next Level of DSP Amplification
Leverage the convivence of Bluetooth 5.0 and powerful DSP to truly create customizable audio projects with the accessibility of wireless streaming. The Dayton Audio KABD-250 combines a 2 x 50W amp board, Bluetooth 5.0, and an ADAU1701 digital signal processor all in one amp board. This enables you to customize your next DIY audio project's sound using SigmaStudio software and Dayton Audio KPX or legacy ICP1 Bluetooth programmer.
The new Dayton Audio KABD series of boards all provide integrated Bluetooth 5.0 with aptX, DSP, and plug-n-play hookup sockets. The line comes with a 2x30W, 2x50W, 4x30W, and 4x100W versions. Check out what you can build with the all new KABD line.
All-in-one KABD-250 Amp Board with DSP & Bluetooth
The KABD-250 replaces the Dayton Audio DSPB-250 with a large array of new features and functionality. The KABD-250 provides high quality Bluetooth steaming, external potentiometers, easily programmable DSP, and is optimized for a longer battery life.
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
High Quality Audio Performance
The Dayton Audio KABD-250 DSP Amplifier Board delivers high quality sound without drawing a lot power. This is due to the highly efficient TPA3116 Class D amplifier chip. The TPA3116 operates at 88% 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
Unlike other amplifier boards, the Dayton Audio KABD-250 includes a built-in ADAU1701 DSP chip. Create nearly limitless possibilities of EQ, crossover, bass enhancement, time alignment and more thanks to the ADAU1701 DSP chip. Make advanced crossovers with ease without capacitors, inductors, or preamp boards, and get almost immediate feedback on how your project sounds. SigmaStudio software and Dayton Audio DSPB-ICP1 or KPX programming boards (sold separately) combine together to let you set audio parameters to produce hi-fi quality sound. Download SigmaStudio into your desktop or laptop computer and plug the small ICP1 or KPX board into the USB port using a USB cable (sold separately). To quickly adjust the sound there are four potentiometers (sold separately) that plug into four sockets on the KABD-250 amp board.
Highest Quality Bluetooth
The Dayton Audio KABD-250 includes a built-in Qualcomm Bluetooth 5.0 module with aptX HD. The advantage of Bluetooth 5.0 is its low power consumption which prolongs the playtime of battery powered builds. The streaming audio quality rivals that of CDs since the Bluetooth chip supports aptX, aptX HD, aptX LL, SBC & AAC. High receive sensitivity with RF power up to 9 dBm and -90 dBm, and on board antenna insure stable wireless connectivity up to 15m (50ft.) On board external antenna jack enables the KAB board to be mounted in a metal enclosure with an external antenna (sold separately). Designed and built for Bluetooth demonstration purposes, this fully functioning module provides a turn-key approach to Bluetooth certification for consumer goods. If the application of this board is for the hobbyist or industrial purposes then nothing is required to enjoy the full convenience of pairing and streaming high quality Bluetooth audio. The KABD-250 is also CE and FCC ready for certification purposes.
Included with the KABD-250 are three wire harnesses: one for DC power, a Bluetooth reset button, and the other for connecting to stereo speakers. For many users, these cables are all that is needed to complete a project. Since they have additional on board connectors, wiring harnesses (sold separately) are available to speed-up installation and create confident connections without soldering. Dayton Audio also offers a variety of accessories with robust features to make installation even easier. Find out more about optional accessories below.
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
SigmaStudio Integration
Although your KABD amplifier houses its own ADAU1701 DSP chip, to communicate with your PC, a USBi programmer is required. Dayton Audio has two compatible programmers -- the DSPB-ICP1 and the KPX. The programmer can be thought of as the bridge between your PC and your DSP chip so that they can communicate.
What do I need to connect my KABD Amplifier to SigmaStudio?
- A Windows PC / Laptop with 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. 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 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 prevents 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
Project Ideas
Use this full function, adjustable amplifier board with built-in DSP chip and Bluetooth 5.0 in endless wireless audio applications that seem impossible to produce the right sound quality. So if you're a hobbyist or manufacturer enjoy presetting this full functioning 2 x 50W DSP amplifier board to peak performance in your finished product. The KABD-250 is also CE and FCC ready for certification purposes. To add more channels to your project use the line output socket with another amp board using wiring kit KABD-SPF (sold separately). Examples of applications include:
SigmaStudio Example Projects and Programming Guide
- Even without any DSP experience, easy to use example project files for all kinds of speaker projects are available pre-configured and easily customizable with SigmaStudio.
- A detailed but easy to follow SigmaStudio programming guide for the KABD Series makes it easy to learn DSP concepts so you can make your own completely custom projects in no time.
SigmaStudio Programming Guide
Need more inspiration?
For even more ideas check our project gallery full of our community of DIY audio enthusiast projects
Portable Power Paths
Power Paths For portable applications, there are three battery holder/charging boards which permit the connection of li-Ion rechargeable batteries to power the board. First is the Dayton Audio LBB-3v2 3-cell 18650 battery holder/charger board that is the same size as the KABD-250 which makes it easy to stack the boards with standoffs. This battery board must use a 5 to 24 VDC power supply. If you desire more wattage output, use the 5-cell 21 VDC Dayton Audio LBB-5Sv2 or LBB-5v2 board. They work with 5 to 24 VDC power supplies. The LBB-5S uses 18650 Li-Ion batteries, and the LBB-5 uses 26650 Li-Ion batteries which delivers more play time. These portable power sources are highly recommended since all three provide under/over voltage protection.
Please note: To achieve power output briefly plug in the recommended power supply into the battery boards after the batteries are installed or when the batteries are removed and reinstalled.
Package Includes
- One Dayton Audio KABD-250 DSP Amplifier Board
- One 2-conductor power cable 20"
- One 4-conductor speaker cable 20"
- One Bluetooth reset button with 20" cable
Specifications
- Power output (w/ 24 VDC power supply): 2 x 50W @ 8 ohms
- SNR: 96 dB 2 x 50W @ 8 ohm, THD+N=1%, 25.8 dB, A-weighting
- THD+N: 0.08% 10W @ 8 ohm 1 kHz 25.8 dB
- Frequency response: 20 to 20,000 Hz (±3 dB)
- Impedance: 3.2-8 ohms
- Recommended power supply: 12 to 24 VDC, 3A
- Board mounting holes center to center spacing: 3.32" x 2.4" (84 x 61 mm)
- Hole diameter: 0.14" (3.5 mm)
- Dimensions: 3.6" L x 2.7" W x 0.9" H
Specification:
Product Details | |
|---|---|
| Brand | Dayton Audio |
| Model | KABD-250 |
| Part Number | 325-107 |
| UPC | 848791007934 |
| Unit of Measure | Each |
| Weight | 0.35 |
Product Specifications | |
|---|---|
| Board Type | 2 Channel Stereo Amp |
| Power (RMS/Channel 8 ohms) | 26 - 50 Watts |
| Special Features | Bluetooth-Bluetooth with aptX |
Manuals & Resources:
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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