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    • Fisher Gold Bug II metal detector with white elliptical coil, black and gold adjustable shaft, digital control box with four knobs, padded armrest, and foam grip on white background
    • Fisher Gold Bug 2 (Gold Bug II) Metal Detector Combo with Dual Coils
    • Fisher Gold Bug 2 (Gold Bug II) Metal Detector Combo with Dual Coils
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    Fisher Gold Bug 2 (Gold Bug II) Metal Detector Combo with Dual Coils

    Vendor:Fisher Type:Metal Detectors
    SKU: GB2COMBO
    Sale Price $769.00 Regular Price $879.00
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    • durable
    • lightweight
    • portable
    • waterproof
    • rechargeable
    • high performance
    • easy to use
    • ergonomic
    • energy efficient
    • multi-functional

    The Fisher Gold Bug 2 (also sold as the Gold Bug II) is a VLF gold prospecting metal detector running at an ultra-high 71 kHz frequency, engineered for extreme sensitivity to sub-gram gold nuggets in heavily mineralized soils. Built for prospectors who hunt Arizona caliche, Nevada hot rocks, and California ironstone country, the Gold Bug 2 delivers a clean target response on fine gold where lower-frequency machines miss the signal entirely. This combo ships with both a 6-inch and a 10-inch elliptical waterproof coil, dual 9V batteries, and a two-year manufacturer warranty — giving you coil flexibility for tight bedrock crevices and open placer washes in one package.

    What's Included with the Fisher Gold Bug 2 Combo

    • Fisher Gold Bug 2 metal detector with control housing, adjustable stem, padded armrest, and foam grip
    • 6-inch elliptical waterproof searchcoil for tight spaces and bedrock hunting
    • 10-inch elliptical waterproof searchcoil for broader coverage in open ground
    • Dual 9V alkaline batteries (installed)
    • Two-year manufacturer warranty backed by Fisher's US technical support facility
    Fisher Gold Bug 2 metal detector combo with dual elliptical coils, shaft, digital control box, armrest, and accessories

    Ultra-High Frequency Performance in Mineralized Gold Country

    Desert Washes & Dry Placer Deposits

    The Gold Bug 2's 71 kHz operating frequency excels at detecting low-conductivity targets in oxidized desert soils where hot rocks and iron trash dominate the signal. The dual-knob manual ground balance system uses a 16-turn vernier potentiometer combined with a 25-position coarse adjustment, letting you null out ground response precisely as mineralization shifts across a wash. Audio Boost mode amplifies faint signals from deep or small targets without raising the volume on strong surface hits — critical when you're working windy ridges or noisy creek banks where threshold audio gets masked.

    Bedrock Crevices & Tight Cobble Fields

    The 6-inch elliptical coil maneuvers into narrow crevices and between boulders where larger coils can't reach, and the high frequency keeps sensitivity to sub-gram specimens even when the coil is wedged against rock. Iron Discrimination mode filters ferrous trash and hot rocks once you've located a target in All Metal mode — though most Gold Bug 2 prospectors run All Metal for primary search, since the threshold-based operation gives you depth and subtle signal variation that discrimination lacks.

    Creek Gravels & Wet Sand Benches

    Both elliptical coils are fully waterproof, so you can sweep shallow creeks and wet gravel bars without worry. The 10-inch coil covers ground faster in open benches and gives better depth on larger nuggets, while the 6-inch stays more stable in variable ground and tight between rocks. Retune speed is fastest in the High and Normal mineralization settings, helping suppress ground noise when you're working black sand concentrations or magnetite streaks. New to high-frequency prospecting? Our gold prospecting tips and FAQs cover ground-balancing and coil selection for the Gold Bug 2.

    Fisher Gold Bug 2 metal detector with search coil held by prospector in an outdoor stream

    Built for All-Day Prospecting in Rugged Terrain

    • Lightweight ergonomics for long sessions: at 2.9 pounds with the 10-inch coil, the Gold Bug 2 balances well for full-day hunts, and the padded armrest plus foam grip reduce wrist fatigue on steep slopes or across miles of placer ground.
    • Hip-mountable control housing: the moisture- and dust-resistant control box detaches from the stem and mounts on your belt, shifting weight off your arm when you're navigating loose talus or crossing creeks.
    • Extended battery runtime: dual 9V alkaline batteries deliver up to 35 hours of operation — enough for multi-day trips into remote gold districts without resupply.
    • Dual-coil flexibility: the 6-inch coil penetrates tight spaces and stabilizes in hot ground, while the 10-inch coil increases depth and coverage in benign soils, so you're equipped for both reconnaissance sweeps and detailed bedrock work.
    • Proudly made in the USA: engineered, assembled, and field-tested at Fisher's El Paso, Texas facility for rugged reliability and strict American quality control.

    How the Gold Bug 2 Compares to Other Fisher Gold Detectors

    The Gold Bug 2's 71 kHz frequency makes it the most sensitive fine-gold machine in the lineup, ideal for hardcore nugget shooters. If you want a more versatile, easier-to-run detector that also handles coins and relics, compare it against the Fisher Gold Bug Pro, or see the full Fisher Gold Bug series. Shopping across brands? Browse every gold prospecting metal detector we carry.

    Specifications

    • Operating Frequency: 71 kHz
    • Operating Modes: 3 (Normal, Audio Boost, Iron Discrimination)
    • Ground Balance: Manual (dual-knob precision control)
    • Audio: Variable Frequency Audio Output (VCO)
    • Searchcoils Included: 6-inch and 10-inch elliptical waterproof coils
    • Weight: 2.9 lbs (1.3 kg)
    • Battery Type: 2 x 9V alkaline
    • Battery Life: 25 to 35 hours (alkaline recommended)
    • Headphone Jack: Yes (1/4-inch)
    • Country of Manufacture: USA (Texas)
    • Warranty: 2 years

    Why Buy the Gold Bug 2 from Serious Detecting

    Serious Detecting is an authorized Fisher dealer, so your Gold Bug 2 ships with an authentic factory serial number and a genuine two-year manufacturer warranty backed directly by Fisher's US technical support facility. Our team has run the Gold Bug 2 in Arizona dry washes and California hard-rock country, and we stock the full range of Fisher Gold Bug 2 coils and accessories for prospectors who want to expand their setup. Every order over $99 ships free within the continental US, backed by a 30-day return policy and price-match guarantee — so you get the best value on a detector built to find gold where others walk past it.

    Product Specifications
    Specification Name Specification Value
    Detector sensitivity Adjustable
    Frequency type Single
    Power source Battery-powered
    Metal detector category Treasure & Relic Detectors and Gold Prospecting Detectors
    Metal detector model Fisher Goldbug Series and Fisher Goldbug II
    Metal detector type Metal Detectors
    Metal detector usage Advanced / Expert
    Operating principle Very Low Frequency (VLF)
    Shipping height 7.5 in
    Shipping length 24.25 in
    Shipping width 9.75 in
    Service & Support

    Warranty & Product Assurance

    At Serious Detecting, we stand behind the quality of every product we offer. Warranty coverage is provided directly by the manufacturer and may vary depending on the item. We’re here to help you understand your coverage and assist with the warranty process when needed. If you ever have questions or need support navigating a warranty claim, our team is happy to guide you.

    Technical Support & Expert Guidance

    Whether you’re setting up new gear, optimizing performance, or troubleshooting an issue in the field, our knowledgeable support team is here to help. We use this equipment ourselves, so we can offer real-world tips and step-by-step assistance to get you detecting with confidence. Message us anytime and we’ll do our best to get you pointed in the right direction fast.

    Manuals, Resources & Downloads

    Access user manuals, setup guides, safety tips, and technical documentation in our online support center. These resources help you understand your equipment, learn recommended settings, and get the most out of every hunt.

    Replacement Parts & Accessories

    Keep your equipment running strong with genuine parts and accessories. We carry coils, batteries, chargers, protective gear, digging tools, and more — fully compatible with your detector and backed by manufacturer standards. Not sure what fits your model? Just ask — we’re here to help.

    Training & Tutorials

    New to detecting or upgrading to advanced equipment? Our resource library includes helpful guides, maintenance tips, how-to videos, and expert advice from experienced detectorists. From ground balancing and coil choices to target ID basics and field technique, you’ll find the knowledge you need to level up your success.

    Customer Questions & Expert Answers

    Get real answers from outdoor explorers and our product experts. Browse questions about performance, features, and setup — or ask your own to make sure this gear fits your next adventure.

    What advantages does the 71 kHz operating frequency provide over lower-frequency detectors?

    The Fisher Gold Bug II's 71 kHz frequency offers significantly higher sensitivity to small, low-conductivity targets like fine gold nuggets compared to detectors operating at lower frequencies. While it sacrifices some depth on large, high-conductivity targets, it excels at detecting sub-gram gold in mineralized soils where iron and hot rocks create false signals. This makes the Gold Bug 2 the top choice for prospectors working oxidized desert placers, black sand concentrations, and ironstone bedrock where sensitivity to tiny specimens is critical. For a broader look at how frequency affects target response, our metal detector technologies page explains the trade-offs between high and low frequencies.

    Answered by Dan P. · July 2026

    How does the manual ground balance system affect performance in variable terrain?

    The Gold Bug 2 uses a 16-turn vernier potentiometer combined with a 25-position coarse adjustment for precise ground balancing, allowing you to fine-tune the detector to specific mineralization levels as soil conditions change across a wash or bench. This dual- xxxx system minimizes false signals from ground mineralization and improves target clarity, especially in hot ground where single- xxxx systems struggle to null out the background response. We recommend re-ground balancing every few sweeps when you're working variable terrain, and using the Low mineralization setting in benign soils to maximize sensitivity to deep or small targets.

    Answered by Dan P. · July 2026

    What's the difference between Audio Boost mode and Normal mode in real-world detection scenarios?

    Audio Boost increases the volume of faint signals without amplifying strong ones, making it ideal for hearing deep or small targets in windy or noisy environments where threshold audio gets masked by ambient sound. In practice, we run Audio Boost when working exposed ridges or creek banks where wind noise makes it hard to hear subtle threshold breaks, though it may also make ground noise and hot rocks more pronounced in highly mineralized soil. Normal mode offers a cleaner threshold in stable ground, so we toggle between the two based on conditions rather than running one exclusively.

    Answered by John W. · July 2026

    Can the IRON DISC mode be used while searching, or is it best as a target check?

    IRON DISC mode is designed primarily for checking targets after they've been detected in All Metal mode, not for primary search. Because it lacks threshold and is less sensitive to weak signals, it's not ideal for sweeping ground, but it's excellent for identifying ferrous junk and hot rocks once you've pinpointed a target. In the field, we dig everything that sounds good in All Metal mode and use IRON DISC to confirm if a marginal signal is a ferrous false or a non-ferrous keeper before we commit to digging deeper.

    Answered by Richard T. · July 2026

    How does the retune speed vary across the Mineralization settings?

    Retune speed is fastest in High and Normal mineralization settings, helping suppress ground noise in difficult soils by quickly resetting the threshold after each swing. The Low setting has a slower retune speed but higher gain, enhancing the signal response for small, deep targets in benign soils where ground noise isn't a limiting factor. We start with Low in stable ground to maximize depth, then switch to Normal or High as mineralization increases, re-ground balancing after each adjustment to maintain clean threshold audio.

    Answered by Dan P. · July 2026

    Can I use aftermarket coils or other Fisher coils with the Gold Bug 2?

    Only coils designed specifically for the Gold Bug 2's 71 kHz frequency are compatible with this detector. Attempting to use coils from lower-frequency Fisher models like the Gold Bug Pro (19 kHz) will not work due to frequency mismatch, and the detector will not operate correctly. Fisher manufactures a limited range of coils for the Gold Bug 2, including the 6-inch and 10-inch elliptical coils included in this combo, so verify frequency compatibility before purchasing any additional searchcoils. For the full range of compatible accessories, browse our Fisher Gold Bug 2 metal detector collection.

    Answered by Dan P. · July 2026

    What are the best practices for achieving optimal depth with this detector?

    Keep the coil parallel and as close to the ground as possible without scrubbing, use the Low mineralization setting when conditions allow, and ground balance frequently as soil composition shifts across the site. Practice consistent sweep speed (slow enough to let the detector process each target but fast enough to cover ground efficiently), and maintain threshold audio so you can hear subtle breaks that indicate deep or small targets. We also recommend using the 10-inch coil in open ground for maximum depth and switching to the 6-inch coil only when working tight spaces or highly mineralized patches where the larger coil becomes unstable.

    Answered by Dan P. · July 2026

    What's the recommended sensitivity setting in highly mineralized soil?

    Start with SENS set to 10 and MINERALIZATION set to Low, then reduce sensitivity incrementally or switch to Normal or High mineralization if ground chatter becomes excessive. Always re-ground balance after any sensitivity or mineralization adjustment, as the two controls interact and changing one can shift the ground null point. In extremely hot ground (Arizona caliche, Nevada black sand), we often run sensitivity at 7 or 8 with High mineralization to maintain stable threshold, accepting slightly reduced depth in exchange for cleaner target signals. For prospectors new to the advanced and expert metal detectors category, this learning curve is part of mastering manual ground balance systems.

    Answered by John W. · July 2026

    Customer Reviews & Field Feedback

    See what real detectorists and prospectors are saying. Read authentic experiences from the field, discover what users love most, and learn how this product performs in real-world conditions. Share your own review to help fellow explorers choose with confidence.

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