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DiGiYes ZK-MT21 Bluetooth 5.0 Power Amplifier Board 2.1 Channel 50W x 2 and 100W Audio Power Amplifier Module with Treble and Bass Control

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Rs. 2,499.00 Rs. 3,100.00
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DiGiYes ZK-MT21 Bluetooth 5.0 Power Amplifier Board 2.1 Channel 50W x 2 and 100W Audio Power Amplifier Module with Treble and Bass Control

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COD available to Maharashtra ₹499 – ₹2,489
Oct 15 Purchased
Oct 17 Processing
Oct 27 - 30 Delivered

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Return, Refund & Cancellation Policy

Refund, Return & Cancellation Policy
Effective Date: September 14, 2026

Cancellation Policy

  1. Cancellation Window — Orders can only be cancelled within 24 hours of placing the order. After 24 hours, cancellation requests will not be accepted as the order enters our sourcing and shipping pipeline.
  2. Cancellation Refund — All cancellation refunds are issued as Dropy Store Credit only, not to the original payment method. Store credit has no minimum spend, no expiry, and can be used in full on any single order at dropy.in. If the customer requests a refund to the original payment method instead of store credit, a 5% processing fee will be deducted from the refund amount to cover payment gateway and administrative charges.

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For orders above ₹10,000 where a partial advance payment is collected:

  1. Order cancellation is allowed only within 24 hours of placing the order.
  2. After 24 hours, the advance amount will not be refunded, as procurement of the product is initiated immediately.

Buyer Protection

Order delivered not as described? Full refund — guaranteed. If the product you receive does not match what is shown or described on dropy.in — including wrong product, different variant, missing components, or significantly different appearance — we will issue a full refund to your original payment method. No 5% processing fee. No store credit restriction. No questions asked. Simply send product images for verification to [email protected] or WhatsApp +91 98679 96311 within 3 days of delivery.

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Refund Policy

  1. For cancellations — Refunds are issued as Dropy Store Credit only by default. If the customer requests a refund to the original payment method, a 5% processing fee will be deducted from the refund amount to cover payment gateway and administrative charges.
  2. For damaged/defective/wrong items — After we receive and inspect your approved return, refunds are issued as Dropy Store Credit by default. If the customer requests a refund to the original payment method, a 5% processing fee will be deducted from the refund amount.
  3. For Buyer Protection claims — Full refund to original payment method. No processing fee. No store credit restriction.
  4. For delayed orders — If your order is not delivered within 30 days of the order date, you may request a full refund to your original payment method. No store credit restriction and no processing fee applies in this case.
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Dropy reserves the right to refuse service, reject return/refund requests, or restrict future orders for any customer found misusing the return, refund, or replacement policy. This includes but is not limited to: repeated false damage claims, frequent cancellations, filing chargebacks without contacting support, threatening or intimidating our team to force policy exceptions, posting or threatening to post false/misleading reviews or social media content to pressure a refund or return approval, spamming our support channels or public platforms, or any behaviour deemed fraudulent, defamatory, or abusive. In such cases, Dropy reserves the right to pursue appropriate legal action to protect its brand and business interests.

Return Address

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Contact

Email: [email protected] · WhatsApp: +91 98679 96311

DiGiYes ZK-MT21 Bluetooth 5.0 Power Amplifier Board 2.1 Channel 50W x 2 and 100W Audio Power Amplifier Module with Treble and Bass Control
Rs. 2,499.00 Rs. 3,100.00
Rs. 2,499.00 Rs. 3,100.00

Real Customer Reviews

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The DiGiYes ZK-MT21 is a high-performance 2.1 channel Bluetooth power amplifier module designed for audiophiles, DIY audio hobbyists, and custom home theater builders. Delivering a robust output of up to 50 Watts for each stereo channel and an additional 100 Watts for a dedicated subwoofer, this module brings cinema-grade sound right into your living room or storefront. It operates smoothly on a flexible Direct Current 12 Volt to 24 Volt power range, ensuring compatibility with various power setups. Built with advanced Bluetooth 5.0 technology, it offers a reliable wireless streaming range of up to 15 meters while also providing a standard 3.5 millimeter auxiliary port for wired audio inputs. This versatile board features independent adjustment knobs for master volume, treble, bass, and subwoofer frequency, letting you fine-tune your acoustic output to match your preference. Engineered with integrated protection mechanisms against short circuits, overheating, overcurrent, and reverse polarity, it guarantees stable and safe operation during extended use. Whether you are upcycling old shelf speakers or building a custom acoustic setup, this amplifier module provides the power and control you need.

Connect your left and right passive speakers to the designated stereo terminal blocks, and connect your passive subwoofer to the subwoofer terminal block. Connect a regulated Direct Current 12 Volt to 24 Volt power supply (minimum 5 Amperes recommended) to the universal 5.5mm x 2.1mm power input interface. Turn on the module, pair your smartphone or audio source via Bluetooth 5.0 or plug in a 3.5mm auxiliary audio cable, and use the integrated dial knobs to adjust the master volume, treble, bass, and subwoofer levels to your desired preferences.

Generic High-grade printed circuit board, premium copper Direct Current connectors, integrated Bluetooth 5.0 chipset, dual-channel stereo power chips, thermal heatsink compound, fence-type terminal blocks, five independent adjustment potentiometers.

FAQs

How do I choose the correct power supply for the ZK-MT21 amplifier board?

The board operates on a Direct Current voltage range of 12 Volts to 24 Volts. For optimal performance and to reach the full output power, it is highly recommended to use a power adapter rated at 18 Volts or 24 Volts with a current capacity of 5 Amperes or higher.

What type of speakers are compatible with this 2.1 channel module?

This amplifier board works best with passive stereo speakers and subwoofers that have an impedance between 4 to 8 Ohms. It safely supports speakers rated from 20 Watts up to 100 Watts.

Can I use both Bluetooth and auxiliary inputs simultaneously?

The module features an automatic input selection mechanism. If both inputs are connected, the Bluetooth signal takes priority; simply disconnect or pause your Bluetooth device to switch to the 3.5mm auxiliary input.

Is this DiGiYes amplifier board an authentic imported product available in India?

Yes, this is an authentic USA-imported DiGiYes product. Dropy India sources these genuine audio components directly from authorized suppliers in the United States, ensuring Indian DIY enthusiasts receive original quality.

Does the ZK-MT21 board come with a pre-assembled case?

The package includes the main pre-assembled circuit board, along with the necessary top protective plates, bottom protective plates, adjustment knobs, and assembly screws required to complete the protective shell enclosure.

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