DAMGOO ZK-1002T

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77%
23%
83%
Sound Quality
91%
Value for Money
78%
Bluetooth Performance
74%
Ease of Installation
58%
Power Output Accuracy
76%
Build Quality
62%
Thermal Management
84%
Connectivity Options
87%
Tone Controls
89%
Compact Form Factor
82%
Protection Circuitry
67%
Power Supply Compatibility
77%
Wireless Range
72%
Noise Floor
More

Overview

The DAMGOO ZK-1002T is a compact Class D stereo amplifier board built for DIY audio enthusiasts who want real functionality without overspending. It ships as a bare PCB board — no enclosure, no power supply, no speakers included — so if you're expecting something plug-and-play, look elsewhere. What you get is a well-specified foundation for a custom speaker build, with both Bluetooth 5.0 and a 3.5mm AUX input already onboard. DAMGOO is a small brand focused squarely on this niche, and this amp board reflects that focus: practical, no-frills, and genuinely useful for the right kind of builder.

Features & Benefits

The heart of this DIY amplifier module is the TPA3116D2 chip, a well-regarded Class D controller rated at 100W per channel — though that figure is peak power, not continuous RMS output, which runs noticeably lower depending on your power supply and speaker load. The board accepts DC 9–24V input, so a standard laptop-style adapter works. Bluetooth 5.0 covers connections up to about 49 feet in open space, with no pairing password required. Physical treble and bass knobs let you dial in EQ on the fly, and built-in protection handles overheat, overvoltage, undervoltage, and short-circuit situations — solid coverage at this price point.

Best For

This amp board is squarely aimed at builders and makers — people repurposing old bookshelf speakers, assembling a garage audio setup, or experimenting with Class D amplification for the first time. The compact footprint, roughly 4.6 by 3.6 inches, tucks easily inside a custom enclosure, and having Bluetooth built in means no separate wireless receiver module cluttering your project. It also suits small desktop near-field builds well. If you're a casual buyer expecting a finished product, this isn't the right fit. But for the hobbyist comfortable sourcing a power supply and designing an enclosure, the ZK-1002T delivers real value.

User Feedback

Across hundreds of reviews, this DIY amplifier module holds a strong 4.5-star average. Buyers consistently highlight clean audio at moderate listening levels and straightforward Bluetooth pairing as standout positives. The onboard tone controls get genuine appreciation from users who wanted hands-on EQ without bolting on extra hardware. That said, the heat sink runs warm under sustained high-volume use, so ventilation inside your enclosure matters. A recurring frustration is sourcing a compatible power supply — a 19V, 4–5A adapter is a reasonable starting point. A small number of buyers were caught off guard by the peak power rating versus real-world continuous output, so set expectations accordingly.

#Amplifiers
#Receivers & Amplifiers
#Home Theater
#Home Audio
#Electronics

Pros

  • Bluetooth 5.0 and AUX input are both built in, eliminating extra modules in a DIY build.
  • Password-free pairing makes reconnecting source devices fast and effortless.
  • Physical treble and bass knobs let you tune sound on the fly without any software.
  • Wide DC 9–24V input range means most laptop-style power adapters work out of the box.
  • Onboard protection covers overheat, overvoltage, undervoltage, and short-circuit scenarios.
  • Compact footprint fits neatly inside custom speaker enclosures without crowding other components.
  • TPA3116D2 chip is well-documented with a large DIY community offering wiring guides and project support.
  • At this price point, the feature set — wireless, tone controls, stereo power — is genuinely hard to match.
  • Clean, distortion-free sound at moderate volumes satisfies casual and workshop listening environments.

Cons

  • The 100W per channel spec is peak power — continuous RMS output is significantly lower under real conditions.
  • No power supply is included, and sourcing the right adapter adds cost and research time to the project.
  • The heat sink runs hot during sustained high-volume use, making ventilation planning mandatory.
  • Zero documentation in the box; first-time builders will need to hunt down wiring guides independently.
  • Bluetooth compression is noticeable for critical listeners — this is not a lossless audio solution.
  • No RCA, optical, or USB inputs limit compatibility with TVs, turntables, or other common source devices.
  • Noise floor is sensitive to power supply quality; a cheap or unregulated adapter will introduce audible hum.
  • No dial detent on tone knobs makes returning to a neutral flat EQ position a matter of guesswork.

Ratings

The DAMGOO ZK-1002T has been evaluated by our AI rating engine after processing hundreds of verified global buyer reviews, with spam, bot-generated, and incentivized feedback actively filtered out. Scores reflect how real DIY builders and hobbyists experienced this amp board across a wide range of home audio projects — strengths and frustrations alike are represented honestly.

Sound Quality
83%
At moderate listening volumes, buyers consistently describe the audio output as clean and surprisingly well-defined for a budget-tier Class D board. The TPA3116D2 chip delivers a respectable stereo image that holds up well for casual desktop listening or workshop setups.
At higher volumes the sound can harden slightly, and distortion becomes noticeable as you push the board toward its limits. Users with more discerning ears noted that the overall fidelity is competent but not something you would compare to a dedicated hi-fi amplifier.
Value for Money
91%
For a board that includes Bluetooth 5.0, tone controls, and onboard protection circuitry, the asking price is genuinely hard to argue with. Most buyers building a first DIY speaker project felt they got significantly more functionality than the price tag suggested.
The value perception takes a small hit once buyers factor in sourcing a compatible power supply and enclosure — costs that are easy to underestimate upfront. A few users felt the total project cost crept higher than anticipated once all components were purchased separately.
Bluetooth Performance
78%
22%
Pairing is fast and password-free, which buyers appreciated for quick reconnection when switching between source devices. The 49-foot open-air range proved reliable in garage and workshop environments where the phone sits several feet from the speaker enclosure.
Like all Bluetooth audio at this price tier, compression artifacts are present if you listen critically — this is not a lossless connection. A handful of users reported occasional dropouts when walls or interference were factors, which is expected behavior rather than a product defect.
Ease of Installation
74%
26%
Experienced makers found wiring this amp board straightforward, with clearly labeled pads and a logical layout that made integration into a custom enclosure relatively quick. The wide voltage input range means power supply compatibility is less of a headache than with more finicky boards.
Buyers new to DIY electronics were sometimes caught off-guard by the lack of any documentation or wiring diagram in the box. Without prior soldering or speaker wiring experience, the learning curve is real, and a few users needed to seek out online guides before feeling confident.
Power Output Accuracy
58%
42%
The board does deliver meaningful power for its size — enough to drive a pair of bookshelf speakers at satisfying volumes in a small to medium room without noticeable strain under normal conditions.
The advertised 100W per channel figure is a peak rating, not continuous RMS output, and real-world continuous power sits considerably lower. Several buyers felt misled by the headline spec, and this discrepancy is the most common source of disappointment across the review base.
Build Quality
76%
24%
The PCB itself is tidy and well-soldered out of the box, with components sitting flush and no obvious quality control issues reported by the majority of buyers. The onboard heat sink, while small, is properly bonded to the chip.
The heat sink is compact and runs noticeably warm during sustained high-volume playback, which raised concern among users who planned to run the board in tightly enclosed builds. Proper ventilation cutouts in the enclosure are essentially mandatory, not optional.
Thermal Management
62%
38%
The built-in overheat protection does appear to function correctly — users who pushed the board hard reported throttling rather than sudden failures, which is exactly the behavior you want from a protection circuit in an unsealed DIY build.
The passive heat sink is undersized for continuous high-power use, and the board gets uncomfortably hot during extended sessions at higher volumes. Buyers building sealed enclosures should plan for active airflow; passive cooling alone is not sufficient in those scenarios.
Connectivity Options
84%
Having both Bluetooth 5.0 and a 3.5mm AUX input on a single board removes the need for any additional input modules in a DIY build. Switching between a phone and a laptop via the AUX jack worked without any reported interference issues.
There is no optical, RCA, or USB input, which limits the board for buyers who want to connect a TV or turntable preamp directly. For strictly wireless and headphone-jack sources the options are sufficient, but the range of compatible source devices is narrower than some users expected.
Tone Controls
87%
The physical treble and bass knobs were one of the most frequently praised features — buyers loved being able to tune the sound without any software, apps, or external EQ hardware. For a workshop or casual listening setup, this is a genuinely practical inclusion.
The controls lack center-detent feedback, so finding a flat or neutral position requires a little guesswork. There is no mid-range control, which limits fine-tuning for users building a more critical listening setup where a fuller EQ would be preferred.
Compact Form Factor
89%
At roughly 4.6 by 3.6 inches, this amp board fits comfortably inside even modest enclosures, leaving ample room for a power input socket, connectors, and speaker terminals. Builders working with compact desktop speaker cabinets found the dimensions very accommodating.
The compact size does come at the cost of heatsinking surface area, contributing to the thermal concerns mentioned by high-volume users. There are also no mounting holes in convenient positions for every enclosure design, which required creative mounting solutions in a few reported cases.
Protection Circuitry
82%
18%
Overvoltage, undervoltage, overheat, and short-circuit protection are all present and confirmed functional by buyers who accidentally stressed the board. This kind of safety coverage is not always standard at this price point and adds real peace of mind for first-time builders.
The protection triggers occasionally caused abrupt shutdowns that were initially mistaken for hardware failures by less experienced users. Better documentation explaining what each protection event looks like would reduce confusion and support requests.
Power Supply Compatibility
67%
33%
The 9–24V DC input range is genuinely flexible, and many buyers successfully repurposed laptop power adapters they already owned. A 19V 4–5A supply is a practical and widely available starting point that keeps overall project cost manageable.
DAMGOO does not include a power supply, and the box offers minimal guidance on what to source. A meaningful minority of buyers spent time troubleshooting weak output or unexpected behavior before realizing their power supply was undersized for the board's demands.
Wireless Range
77%
23%
In open environments like garages, workshops, or open-plan living spaces, the 49-foot Bluetooth range proved more than adequate for most users. Keeping a phone on a workbench while the speakers sit across the room worked reliably in the majority of reported use cases.
Range degrades noticeably through walls, and in multi-room or obstructed environments the connection becomes less stable. Buyers expecting indoor whole-home wireless coverage will be disappointed — this is a room-scale solution, not a whole-home audio transmitter.
Noise Floor
72%
28%
Under normal operating conditions with a clean power supply, the board's background noise is low enough that it is inaudible at normal listening distances. Users running efficient speakers in a quiet room found the noise floor acceptable for casual use.
Some users reported a faint hiss or hum, particularly when using lower-quality or unregulated power supplies. The noise floor is sensitive to power supply quality, so buyers cutting corners on the adapter may notice more audible background noise than expected.

Suitable for:

The DAMGOO ZK-1002T is a strong match for DIY audio hobbyists who enjoy building things from scratch and are comfortable sourcing enclosures, power supplies, and speaker drivers independently. If you have a pair of old bookshelf speakers sitting in a closet and want to breathe new life into them with a modern wireless-capable amplifier, this amp board is one of the most cost-effective ways to do it. Makers building custom garage or workshop speakers will appreciate having Bluetooth 5.0 and physical tone controls already integrated, eliminating the need for extra modules in the signal chain. It also works well for compact desktop near-field builds where board size matters and the listening environment is a single room. Entry-level builders experimenting with Class D amplification for the first time will find the TPA3116D2 chip a forgiving and well-documented starting point with a supportive online community around it.

Not suitable for:

The DAMGOO ZK-1002T is the wrong choice for anyone expecting a finished, ready-to-use product — this is a bare PCB, and treating it otherwise will lead to frustration fast. Buyers who want audiophile-grade sound quality or bit-perfect wireless audio should look at higher-tier amplification solutions, as Bluetooth compression and the limitations of budget Class D output are both real factors here. If you plan to run the board at high volumes continuously for extended periods, the small onboard heat sink and compact design make thermal management a genuine concern, particularly inside sealed enclosures. The advertised 100W per channel is a peak figure, so anyone dimensioning a system around that number for serious acoustic output will be disappointed by the actual continuous performance. Finally, buyers without experience wiring speaker terminals, selecting a power supply, or working with bare electronics boards should be aware that the product ships with minimal documentation, and the learning curve is real without prior hands-on experience.

Specifications

  • Amplifier Chip: Powered by the TPA3116D2, a widely used Class D amplifier IC known for efficient power delivery and low heat generation at moderate output levels.
  • Power Output: Rated at 100W per channel (2.0 stereo) at peak conditions; continuous RMS output is lower and depends on the power supply voltage and speaker impedance used.
  • Input Voltage: Accepts DC 9–24V input, giving builders flexibility to use common laptop-style power adapters or regulated bench supplies within that range.
  • Channels: 2.0 stereo configuration with fully independent left and right channel amplification — no subwoofer channel is included on this board.
  • Bluetooth Version: Bluetooth 5.0 with a rated open-air transmission range of up to 49 feet and no pairing password required for device connection.
  • AUX Input: Accepts wired audio via a standard 3.5mm headphone jack, allowing connection from any device with a headphone or line output.
  • Speaker Compatibility: Designed to work with speakers rated between 20–200W at 4–8 ohms impedance; driving speakers outside this range is not recommended.
  • Tone Controls: Onboard rotary knobs for independent treble and bass adjustment are included; there is no mid-range control or digital EQ on the board.
  • Dimensions: The PCB measures approximately 4.64 x 3.55 x 1.18 inches (including the onboard heat sink), making it suitable for compact custom enclosures.
  • Weight: The bare board weighs 3.92 ounces, keeping the overall project weight minimal when integrated into a lightweight speaker cabinet.
  • Heat Sink: An onboard passive heat sink measuring 36 x 25 x 10mm is bonded to the amplifier chip to assist with thermal dissipation during operation.
  • Protections: Built-in safeguards include overheat shutdown, overvoltage protection, undervoltage protection, and short-circuit protection on both output channels.
  • Bluetooth Pairing: The board operates in password-free pairing mode, meaning any Bluetooth-enabled device can connect without entering a PIN or confirmation code.
  • Form Factor: Ships as a bare PCB with no enclosure, no power supply, and no speaker terminals pre-wired — additional components must be sourced separately by the builder.
  • Manufacturer: Produced by DAMGOO, a manufacturer specializing in compact DIY audio amplifier modules and related electronics components.
  • Max Supply Voltage: The maximum recommended DC supply voltage is 24V; exceeding this risks triggering protection circuits or damaging the board permanently.
  • Input Modes: The board supports two input modes — Bluetooth wireless and 3.5mm AUX — with no optical, RCA, or USB input options available.

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FAQ

A 19V DC adapter rated at around 4–5A is a practical and widely available starting point, and many builders repurpose laptop power supplies in that range. The board accepts anything from 9V to 24V DC, but you will get better output power closer to the upper end of that range. Make sure your adapter uses a 5.5mm x 2.1mm or 5.5mm x 2.5mm barrel connector.

Honestly, no — not in the way most people interpret it. The 100W figure is a peak or maximum rating under ideal conditions, not a continuous RMS output number. In real-world use with a typical 19V supply and 4–8 ohm speakers, you can expect continuous power in the range of 30–50W per channel depending on impedance. That is still more than enough for a desktop or small room setup, just do not size your speakers or expectations around the peak figure.

For a basic setup, you can get away with just crimping or screw-terminal connections if your enclosure design allows it. However, if you want a clean, reliable build inside a custom cabinet, some basic soldering skills will help. There are no through-hole components to populate — the board comes fully assembled — but you will need to wire in your power input, speaker outputs, and audio input connectors.

Yes, 8-ohm speakers are within the specified compatible range of 4–8 ohms. The output power will be somewhat lower than with 4-ohm speakers, but the board will drive them cleanly at moderate volumes. Just make sure your speakers are rated to handle at least 20W so the board has some headroom to work with.

No, it ships as a bare PCB only. You will need to design or source your own enclosure, which is part of the appeal for DIY builders but can catch casual buyers off guard. If you need a pre-built housing, there are generic project boxes available online that can be adapted to fit the board dimensions.

At moderate volumes it runs warm but manageable. Push it harder for extended periods and the heat sink gets noticeably hot to the touch, especially inside an enclosed cabinet with limited airflow. Cutting ventilation slots into your enclosure, or adding a small 5V fan if the build allows, is genuinely worth doing for anything beyond casual low-volume listening.

For a TV, it depends — if your TV has a 3.5mm headphone or audio output, you can wire that directly into the AUX input. Most modern TVs use optical or RCA outputs, and this board does not accept either of those natively, so you would need a converter. For a record player, you would need a phono preamp between the turntable and the board, as the AUX input expects a standard line-level signal, not the low-output phono signal from a cartridge.

The connection is generally stable within a single room, but expect some degradation through walls or with competing wireless signals nearby. Regarding codec support, the board uses standard Bluetooth 5.0 but there is no confirmed support for aptX or AAC — it likely defaults to SBC, which is fine for casual listening but not ideal if you are particularly sensitive to compression artifacts.

The onboard overvoltage and undervoltage protection circuits are designed to handle accidental mismatches to a degree. If the voltage is too low, the board may not power up or will behave erratically. If it exceeds the 24V maximum, the protection should trigger, but pushing significantly beyond that threshold risks permanent damage. Always double-check your adapter specs before connecting.

For a typical single-car garage or workshop, yes — especially if you are using reasonably efficient speakers rated around 85–90 dB sensitivity. The continuous output is sufficient to fill a modest-sized space at comfortable background listening levels. For large open workshops where you need to compete with noisy tools, you might want more efficient speakers or a higher-voltage power supply closer to the 24V maximum to get the most out of the board.