ResoField vs GB-4000
These products are not interchangeable. This comparison separates documented product features from the browser workflow in ResoField.
Sources checked on 11 October 2026
ResoField
Verified facts
The table below uses current manufacturer pages, official shops and regulatory documents. A manufacturer claim describes what that company says. It is not independent proof of medical effectiveness.
| Subject | GB-4000 | ResoField |
|---|---|---|
| Product type | The GB-4000 is a frequency generator sold through thegb4000.com and hand assembled in the USA. It is operated from its own keypad and display. The seller avoids the term Rife machine out of respect for Royal Rife's wishes, yet on Rife forums the GB-4000 is often weighed against Spooky2. | Browser application for reference libraries, client profiles, custom lists, protocols and planning. |
| Price | On 11 October 2026 the official site listed the GB4000 at 1,975 dollars, the GB4000 SR4 Combo at 2,695 dollars (normally 2,795) and the M.O.P.A. Combo Pack at 4,870 dollars. The accessory kit (155 dollars) and the plasma tube for the MOPA (390 dollars) are sold separately. | Free at the time of this review. |
| Output and workflow | The generator sends audio and RF signals through metal hand cylinders and footplates, up to 4.7 watts RF on its own or up to 15 watts with the SR4 amplifier. With the MOPA amplifier and a gas filled plasma tube, the seller gives an output of 20 to 190 watts without body contact. | No audio, electrical current, PEMF or other physical device signal. |
| Capacity and customisation | It stores 2,000 channels, about 875 of them preprogrammed, and runs up to 8 frequencies at once up to 40,000 Hz. The specification table gives a range of 1 Hz to 20 MHz. | Custom lists and protocols are available. The new app allows up to 20 active plans per account and up to 6 scheduled rounds at the same time. |
| Banerji protocols | No built in Banerji library was found in the public product information reviewed. | Custom protocols are available. The built in Banerji reference library covers 433 conditions and 1,839 protocol lines. |
| Evidence and limits | The seller states that its information is for educational and research purposes only and that no use is claimed. Cancer Research UK writes that there is no reliable evidence that the Rife machine works as a cure for cancer, and mentions reports of electric shocks and rashes. | ResoField is not a medical device and does not diagnose or treat disease. |
Sources used
Prices and product details can change. Check the linked supplier before making a purchase.
What this means in practice
GB-4000 provides its own hardware, service or measurement workflow. ResoField is software for organising reference material and practitioner work. It does not reproduce a physical signal or measurement.
Looking at Rife generators? We also compared Spooky2, the system the GB-4000 is most often set against. Spooky2 vs ResoField
New to Rife devices? Read what a Rife machine is, how it works and what the research says. What is a Rife machine?
Other Comparisons
Use the tool that fits the job
Choose the supplier product when you need its documented hardware or service. Choose ResoField when you need a free browser workflow for libraries, clients, lists and protocols.
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Not a medical device. Does not replace a doctor.