To test the DMS328 V3, we paired it with a standard long-wire antenna (approx. 20m) and a dedicated magnetic loop to compare noise floors.
The "V3" suggests future iterations are on the horizon. However, audio forums are currently reporting that the 28 Band Exclusive firmware is being locked down by manufacturers to prevent cloning. If you find a unit labeled "V3 Exclusive," verify that the control software shows 28 independent sliders. Some knock-offs claim 28 bands but internally only have 13.
As of late 2024, the DMS328 V3 remains the go-to recommendation for car audio enthusiasts who have tried 13-band EQs and felt they were "close, but not perfect." dms328 v3 28 band exclusive
The term "Exclusive" is often marketing fluff, but with the dms328 v3, it is literal. The 28-band configuration is not available on the standard v3 model. It requires a specific SHARC DSP chip that is currently in limited supply.
The Pros:
The Cons:
The term "28 Band Exclusive" is where the DMS328 V3 truly shines. In previous iterations of budget SDRs, coverage was often spotty. You might get great reception on the 40m amateur band, but the 10m band would be deaf, or medium wave (AM broadcast) would be completely saturated with noise. To test the DMS328 V3, we paired it
The V3 architecture optimizes the front-end filtering to handle 28 discrete band segments effectively. Here is why this matters to you, the listener: