• Dayton Audio DTA-2.1BT 100W Class D 2.1 Amplifier
  • Dayton Audio DTA-2.1BT 100W Class D 2.1 Amplifier
  • Dayton Audio DTA-2.1BT 100W Class D 2.1 Amplifier

Dayton Audio DTA-2.1BT 100W Class D 2.1 Amplifier

The DTA-2.1BT amplifier provides clean Class D power from an extremely compact and lightweight design. When used with the included power supply, this amplifier can adequately power most speakers and power a small passive subwoofer as well.
Article number:
Delivery time:
Delivery time: 1-5 business days
In stock (10)
€114,95 .
Incl. tax

The DTA-2.1BT amplifier provides clean Class-D power from an extremely compact and lightweight design. It is able to adequately power most speakers, and is also able to power a passive subwoofer. This allows you to create an inexpensive and high-performance 2.1 set up for any office, bedroom, or small home theater.



  • Perfect to power an entire 2.1 system
  • High-quality binding posts to ensure a solid connection and a professional look
  • Volume, tone, and sub level control via the front panel for easy attenuation
  • Bluetooth, RCA, and 3.5 mm inputs for a wide selection of inputs


Product Details

Dayton Audio DTA-2.1BT 100W Class D 2.1 Amplifier with Bluetooth and Power Supply


The DTA-2.1BT is a discrete whole system amplifier that provides output for 2 speakers and a passive subwoofer. This design allows you to create a compact 2.1 setup for virtually any room whether it be an office, bedroom, or even a small home theater. The 2 x 50W output power is more than enough for most bookshelf speakers, and the subwoofer output of 100W is ideal for a small subwoofer.


The reason the DTA-2.1BT is able to produce this exceptional power in such a small package is the Class D topology that is being utilized. This amplifier technology also provides high-efficiency for a low power draw on your electrical system.


The DTA-2.1BT features the three most popular audio inputs: 3.5 mm, stereo RCA, and of course Bluetooth. The 3.5 mm and RCA inputs are found on the rear of the unit labeled Aux 1 and Aux 2, respectively. The Bluetooth connectivity is extremely convenient for wireless audio playback and is a key feature for any audio enthusiast.


The front plate of the DTA-2.1BT features 3 knobs providing a gentile tactile feel. The first knob on the left provides control over the subwoofer output. The second knob is a tone control that allows you to attenuate the sonic signature of your speakers. The final and largest knob is the volume control located on the right of the faceplate. There is a discrete push button power switch/source selector located on the front of the unit on the left-hand side. The DTA-2.1BT aesthetics offer you an attractive black aluminum case that can easily be the focal point of your 2.1 system.


Specifications: • Speaker power output: 50 watts x 2 • Subwoofer power output: 100 watts • Impedance: 4-8 ohms • Power input: 24 VDC • Power Adapter Input: 120 VAC - 240VAC • Amplifier class: Class D • Bluetooth distance: up to 30 meters • Bluetooth compatibility: A2DP and AVRCP • Dimensions: 5.1" W x 6" L x 1.5" H.


Rickard C. Posted on 7 October 2018 at 18:28

No description was given

Zoltan Posted on 30 September 2018 at 22:42

I bought this amp to replace my cheap Chinese TPA3118 2.1 amp for my boombox project.
This amp has a good quality case, brushed metal box, nicely painted. The dials are turned with a silent "click", it is a joy to play with them. It is important to note that it has a 24V 4A PSU, that is enough for nearly 90W continuous power.

I use it with BT connection, using it with a Samsung Galaxy phone. Sound is clear, no background noise during playback. The phone BT input is really powerful at max volume, it easily makes the amp clipping at 66-75% of the volume dial, so I keep my phone BT volume around 80%, allowing me a more granular volume control on the amp.

I made some measurements in stereo mode (not 2.1) with 2*4 Ohm dummy loads, with its default PSU, in BT mode. I have a cheap DSO150 Oscope, so it might not be 100% accurate, but hope it helps.

Clean power @1KHz (before visible clipping on the sine wave): 13.5-14V, =45-48W clean power / channel (<1%), that is excellent, knowing that the maximum power is 50W. The power supply is probably capable to deliver far beyond its specs, as 100W clean power would require at least 4.5-4.8A, that it can surely produce, at least for a short time. The PSU became only slightly warm during this, no overload protection kicked at maximum clean power at least not during the stress test (1-2 minutes).

Frequency response is pretty flat vs. 1kHz, though it fades by -3dB above 16kHz:
@30Hz -1.1dB,
@40Hz -0.6dB
@5kHz -0.3dB
@10kHz -1.6dB
@14kHz -2,4dB
@20kHz -4.6dB

Overall, I like this amp for the price (it is more pricey in Europe, unfortunately).
It costs more than its noname cousins, but every piece of it tells about the many hours of engineer efforts, to make a decent product overall.

ALAN ROBERT P. Posted on 27 May 2018 at 10:34

Good clean sound.

Tomi K. Posted on 11 May 2018 at 17:11

No description was given

Kári W. Posted on 7 May 2018 at 17:40

Amazing lil fella, great sound in a tiny package! Blown away by the build quality as well.

4.8 stars based on 5 reviews Add your review
By using our website, you agree to the usage of cookies to help us make this website better. Hide this message More on cookies »