--- product_id: 219297878 title: "OCL Amplifier Board Kit Dual 100W High Power Two-Channel Pure Final Stage DIY Audio Stereo Amplifier Module Parts" brand: "dasiter" price: "AR$54148" currency: ARS in_stock: true reviews_count: 8 category: "Dasiter" url: https://www.desertcart.com.ar/products/219297878-ocl-amplifier-board-kit-dual-100w-high-power-two-channel store_origin: AR region: Argentina --- # ±18V DC power supply Dual 100W stereo channels DIY assembly with glass fiber PCB OCL Amplifier Board Kit Dual 100W High Power Two-Channel Pure Final Stage DIY Audio Stereo Amplifier Module Parts **Brand:** dasiter **Price:** AR$54148 **Availability:** ✅ In Stock ## Summary > 🎶 Amplify your sound, amplify your lifestyle! ## Quick Answers - **What is this?** OCL Amplifier Board Kit Dual 100W High Power Two-Channel Pure Final Stage DIY Audio Stereo Amplifier Module Parts by dasiter - **How much does it cost?** AR$54148 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/219297878-ocl-amplifier-board-kit-dual-100w-high-power-two-channel) ## Best For - dasiter enthusiasts ## Why This Product - Trusted dasiter brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Build Quality:** Glass fiber board and high-power triodes guarantee durability and reliable performance under load. - • **Custom DIY Experience:** Perfect for audiophiles and electronics enthusiasts who love hands-on assembly and tuning. - • **Precision OCL Circuitry:** High stability and wide frequency response ensure crystal-clear, high-fidelity sound reproduction. - • **Power-Packed Stereo Output:** Two independent channels delivering a combined 200W of pure audio power for immersive sound. - • **Optimized for Active Speakers:** Designed to seamlessly integrate with household power amplifiers and active speaker setups. ## Overview The OCL Amplifier Board Kit is a dual-channel, 200W power amplifier module featuring a high-stability OCL circuit on a durable glass fiber PCB. Operating at ±18V DC, it delivers wide frequency response and excellent fidelity, making it ideal for DIY audio enthusiasts and audiophiles seeking customizable, high-power stereo amplification. ## Description Second, the installation and production The printed circuit diagram of this circuit is shown in Figure 3. It includes a two-way OCL power amplifier circuit and a DC power supply circuit. A heat sink is required between the body of the 4 high power tube 2N3055 and the printed circuit board, and is fixed by screws. The resistors are installed horizontally. The capacitors and triodes are installed vertically and close to the circuit board. The soldering requirements are firm and reliable. There are two jumpers on the circuit board, which can be soldered with iron wires. Third, debugging The power transformer used in this circuit needs to be prepared by itself. It adopts a center-tapped dual output transformer (AC: 1 5VX2), the power is not less than 40W, and is connected to the AC~ and the upper part of the printed circuit board. After being energized, it is generated at both ends of C9 and C10. With a DC voltage of ±18V, the voltage across the speaker is zero volts. First adjust the current of the differential amplifiers vt l, vt2, in order to avoid the large current flowing through the power tube, first short the base of vt4, vt5 with a wire, so that vt4 ~ vt7 cut off. Then solder one end of the resistor r6 to the ground and solder it to ground. The total emitter current of the differential amplifier stage is determined by r4. The R4 is adjusted so that the total emitter current of vt 1 and vt2 is 1 mA. After the resistor r6 is restored, the voltage across the speaker should be o. If there is an offset, adjust r3. Package Included: 1 x OCL Amplifier Board DIY Kit Review: Great kit - I've followed recommendations by other reviewers and replaced C3/C6 with 101 (100pF) and R23 with 20K - other than that - it worked just fine OOB. Sound quality and volume are very good. Assembly is easy and can be done without manual that is in Chinese (you can use google lens to translate). All in all - great kit! Review: Zereo stars- - Purchased one and returned it. Purchased a second one and it did not work either. Reading the reviews I found a review that stated it would not work as the kit was supplied. The review offered modifications to make this kit work. I tried his recommended modifications and yes it did in fact make the amplifier work. So no dice for me people.... I bought two and neither of them worked, until I modified the second one. (And by the way yes I know how to solder that wasn't the issue.... I've been in electronic repair ever since I've become an adult many years ago LOL ## Features - Circuit Board Size: Glass Fiber Board 22.4cm*7cm, Working Voltage: Double AC 12V - Fully Separated Components, Four High-power Triodes, Two Stereo Channels, Each Channel can Reach to 100W. - The Power Amplifier Circuit of Household Power Amplifier and Active Speaker has a Good Effect. - This Power Amplifier Uses a Typical OCL Circuit, Which Has the Advantages of High Stability, Wide Frequency Response Range, Good Fidelity, etc. This Circuit is Often Used in High-Fidelity Sound Reproduction Equipment. - This OCL Stereo Amplifier is Suitable for the Assembly and Uuse of Electronic Enthusiasts and Audiophiles. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08D6CB83J | | Best Sellers Rank | #115,178 in Electronics ( See Top 100 in Electronics ) #673 in Audio Component Amplifiers | | Brand | Dasiter | | Brand Name | Dasiter | | Customer Reviews | 3.4 out of 5 stars 34 Reviews | | Manufacturer | Dasiter | | Material Type | Glass Fiber | | Maximum Output Power | 200W | | Maximum Supply Voltage | 12 volts_of_alternating_current | | Minimum Supply Voltage | 12 volts_of_alternating_current | | Model | DA108-OCL Amplifier Board Kit | | Mounting Type | Surface Mount | | Number of Channels | 2 | | Output Power | 200 watts | | Package Type Name | box | | Part Number | DA108-OCL Amplifier Board Kit | | Specification Met | Good Effect | | UPC | 824007541737 | | Unit Count | 1 Count | | Voltage | 12 volts, 18 volts | ## Product Details - **Manufacturer:** Dasiter - **Maximum Supply Voltage:** 12 Volts (AC) - **Minimum Supply Voltage:** 12 Volts (AC) - **Mounting Type:** Surface Mount - **Voltage:** 12 Volts, 18 Volts ## Images ![OCL Amplifier Board Kit Dual 100W High Power Two-Channel Pure Final Stage DIY Audio Stereo Amplifier Module Parts - Image 1](https://m.media-amazon.com/images/I/61WDlFSXBiL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great kit *by A***N on June 23, 2026* I've followed recommendations by other reviewers and replaced C3/C6 with 101 (100pF) and R23 with 20K - other than that - it worked just fine OOB. Sound quality and volume are very good. Assembly is easy and can be done without manual that is in Chinese (you can use google lens to translate). All in all - great kit! ### ⭐ Zereo stars- *by S***E on April 14, 2026* Purchased one and returned it. Purchased a second one and it did not work either. Reading the reviews I found a review that stated it would not work as the kit was supplied. The review offered modifications to make this kit work. I tried his recommended modifications and yes it did in fact make the amplifier work. So no dice for me people.... I bought two and neither of them worked, until I modified the second one. (And by the way yes I know how to solder that wasn't the issue.... I've been in electronic repair ever since I've become an adult many years ago LOL ### ⭐⭐⭐ Will work OK with some effort *by R***L on January 17, 2026* Based upon other reviews, I tested all components prior to building. All were delivered and tested out ok but glad I did anyway. Based upon other reviews, I looked for errors in the schematic/documentation and only found one schematic error. R11/R22 is marked as 240 ohm in schematic, but is marked as 220 ohm on the PCB. I installed the (delivered) 240 ohm resistors. The amp "worked" after assembly, but poorly. I changed R6/R17 to 22k and R5/R16 to 1K. This sets the amp feedback for a more "typical" gain of 23. I also reduced C3/C6 to 100pf which increased the slew rate/frequency response. With these changes, the amp has good frequency response and seems reliable for 10W RMS per channel into 16 ohms. Not sure I would push it much past that. I did not trust or use the english translation of the documentation. I bought this to play around with class AB amps, and for that purpose it was a bargain. YMMV. ## Frequently Bought Together - Dasiter OCL Amplifier Board Kit Dual 100W High Power Two-Channel Pure Final Stage DIY Audio Stereo Amplifier Module Parts - NE5532 Amplifier Kit Stereo Preamplifier Volume Control Board with Treble Midrange and Bass Tone Controls DIY Kit Preamp Module - PCB Board DIY kit Vacuum Electron Tube DIY Tube Amplifier kit Tube Amplifier kit Valve Preamp Amplifier Board Tube Headphone Amplifier Kit Headphone Amp Parts Musical Fidelity Kit DC12V --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/219297878-ocl-amplifier-board-kit-dual-100w-high-power-two-channel](https://www.desertcart.com.ar/products/219297878-ocl-amplifier-board-kit-dual-100w-high-power-two-channel) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-09-12*