Creatall Sets the Record Straight on CA-3138A Specifications
Shenzhen, China — Creatall, a professional manufacturer of audio amplifier boards since 2010, today issued an official clarification regarding its CA-3138A TPA3116 digital stereo amplifier board. The statement follows the recent appearance of third-party promotional comparison images that use photographs of the CA-3138A board — with the model number clearly printed on the PCB — together with output figures that do not appear in any official Creatall material.
"We normally let our products speak for themselves, but when buyers are asked to make decisions based on numbers, those numbers should be real," a Creatall spokesperson said. "Here are the facts."
Official CA-3138A Specifications
The official specification of the CA-3138A, published on the Creatall website and in the company catalogue, is straightforward:
- Amplifier chip: TPA3116 digital stereo amplifier
- Stereo output power: 2 * 50 W — the same rating Texas Instruments applies to the TPA3116D2 chip (4 Ω load, 21 V supply, 10 % THD+N)
- Input voltage: DC 8–24 V
- On-board output: 5 V USB output for powering Bluetooth modules or small devices
- Certification & QC: CE and RoHS compliant; IQC/IPQC/OQC/FQC quality gates; every board is 100 % tested before shipment
Official Specs vs. Third-Party Comparison Claims
| Parameter |
CA-3138A official spec (published by Creatall) |
Figure used in the third-party comparison |
| Amplifier chip |
TPA3116 |
Not disclosed |
| Stereo output power |
2 * 50 W (same rating TI gives the TPA3116D2) |
Claimed "40 W + 40 W rated / 90 W + 90 W max" — a figure found in no official Creatall material |
| Input voltage |
DC 8 – 24 V |
Not stated |
| On-board 5 V USB output |
Yes — powers Bluetooth modules / small devices |
Not mentioned |
| Certification & QC |
CE, RoHS; IQC/IPQC/OQC/FQC; 100% tested before shipment |
Not mentioned |
Why the Comparison Numbers Do Not Add Up
1. Same chip, wildly different stories
The board shown in the comparison and the CA-3138A use the same amplifier chip — TPA3116. The same silicon cannot honestly be rated at one power level in one photograph and a different level in another. The chip manufacturer's own datasheet states 2 * 50 W into 4 Ω at 21 V (10 % THD+N) — exactly the figure Creatall publishes.
2. Rated power versus peak marketing numbers
Figures such as "90 W + 90 W max" or "150 W + 150 W maximum" are peak numbers measured under specific conditions at high distortion. They are not continuous power. Placing one board's peak figure next to another board's honest catalogue rating is not a comparison — it is marketing. Creatall states catalogue power the same way the chip maker states it, and always advises customers that ratings are measured under specific conditions and provided for reference only.
3. The figure quoted for our board exists nowhere in our data
The official CA-3138A product page lists the board at 2 * 50 W. If a comparison image shows a different number, that number did not come from Creatall.
How to Compare Amplifier Boards Fairly
- Compare boards using the same chip or the same power class.
- Always ask about test conditions: supply voltage, speaker impedance, and THD level.
- Distinguish continuous (RMS) power from peak/maximum marketing figures.
- Look beyond the headline number: input range, extra outputs such as the 5 V USB, protection, certification and QC.
- Verify any figure against the seller's official page — real factories publish real data.
What Creatall Stands For
Creatall is a Shenzhen-based manufacturer founded in 2010. The company operates IQC/IPQC/OQC/FQC quality gates, holds CE and RoHS certification, and tests every board before it leaves the factory. Customers in more than 50 countries — from repair shops to speaker brands — rate Creatall five stars not because it shouts the loudest, but because the numbers it publishes are the numbers it delivers.
A Note on Fair Play
Creatall has never used another company's product photos or models in its own marketing without permission. This statement names no one and copies no one's tactics. It is simply a statement of Creatall's own facts, so that every buyer can make a decision based on real data.
Talk to Us
If you are comparing amplifier boards, Creatall is happy to send datasheets, test conditions, or samples. Ask anything — the answer will be the same as the one on this page.
Official product page: CA-3138A 5V Dual Channel Amplifier Board 2x50W 8-24V Input
Your message must be between 20-3,000 characters!
English
