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Description
Hydrogen GZHK 165Hydrogen GZHK 165 ist ein 6,5 Zoll (16,5 cm) Tiefmitteltner von Ground Zero mit geschpfter Papiermembran und 38 mm CCA Schwingspule. Die Ausfhrung mit Ferrit Magnet, GZ Design Aluminium Druckgusskorb und linearisiertem Antrieb ist auf 4 Ohm ausgelegt. Die Belastbarkeit betrgt 120 Watt RMS und 180 Watt maximal. Der Wirkungsgrad liegt bei 87 dB, der Frequenzgang bei 40 Hz bis 5000 Hz. Der Durchmesser betrgt 165 mm, die Einbautiefe 69 mm und der Einbau
Hydrogen GZHK 165 ist ein 6,5 Zoll (16,5 cm) Tiefmitteltöner von Ground Zero mit geschöpfter Papiermembran und 38 mm CCA Schwingspule. Die Ausführung mit Ferrit-Magnet, GZ-Design Aluminium-Druckgusskorb und linearisiertem Antrieb ist auf 4 Ohm ausgelegt. Die Belastbarkeit beträgt 120 Watt RMS und 180 Watt maximal. Der Wirkungsgrad liegt bei 87 dB, der Frequenzgang bei 40 Hz bis 5000 Hz. Der Durchmesser beträgt 165 mm, die Einbautiefe 69 mm und der Einbau-Ø 144 mm. Die Resonanzfrequenz Fs liegt bei 49,4 Hz. Inklusive GZ-Design Hexagon-Schutzgitter, 1 Paar pro Verpackung.
Merkmale
- 6,5 Zoll (16,5 cm) Tiefmitteltöner
- Geschöpfte Papier-Membran
- 38 mm CCA Schwingspule
- Ferrit-Magnet
- GZ-Design Aluminium-Druckgusskorb
- Linearisierter Antrieb
- 4 Ohm Ausführung
- Inklusive GZ-Design Hexagon-Schutzgitter
- 1 Paar pro Verpackung
Technische Daten
- Durchmesser 165 mm
- Belastbarkeit RMS 120 Watt
- Belastbarkeit max. 180 Watt
- Impedanz 4 Ohm
- Wirkungsgrad 87 dB
- Frequenzgang 40 Hz – 5000 Hz
- Schwingspule 38 mm CCA
- Membran geschöpftes Papier
- Einbau Ø 144 mm
- Einbautiefe 69 mm
- Resonanzfrequenz Fs 49,4 Hz
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 2252 reviews
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Product Reviews
★★★★★ 5
Gear set!
Amazing kit lasts a long time and makes my skin so smooth and hydrated.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
good product
Effectiveness:
This serum focuses on brightening, uneven tone, and early signs of aging using two stabilized forms of vitamin C plus supportive antioxidants. With consistent use, it can help improve overall radiance and reduce the look of dark spots gradually rather than delivering fast, dramatic fading.
Texture & Application:
Lightweight, silky, and smooth. It spreads easily and absorbs quickly without feeling greasy or heavy. The airless pump helps keep the formula stable and prevents oxidation, which is important for vitamin C products.
Key Ingredients Performance:
Vitamin C (two stabilized forms) supports brightness and antioxidant protection
Kojic acid ester helps even skin tone over time
Oryzanol (rice bran antioxidant) helps enhance brightening effects and supports skin defense
Overall, it’s a gentler vitamin C approach compared to high-strength L-ascorbic acid serums, making it more suitable for sensitive or beginner users.
Skin Feel / Finish:
Leaves a soft, natural finish with no sticky residue. It layers well under moisturizer and sunscreen and doesn’t pill when used correctly. Suitable for daily AM or PM use.
Durability of Results:
Improvements are gradual—typically noticeable after several weeks of consistent use. Best results come with daily sunscreen use since vitamin C works synergistically with UV protection.
Value:
Very strong value for a budget-friendly serum. It delivers multiple brightening ingredients at a low price point, making it accessible for everyday skincare routines.
Overall:
A gentle, affordable vitamin C serum that prioritizes steady brightening, antioxidant support, and skin tone improvement over high-intensity results. Best for beginners, sensitive skin, or anyone wanting a simple daily glow-boosting step.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Amazing Vitamin C at an Affordable Price!
This Vitamin C serum from Good Molecules is honestly one of the best I’ve tried! The texture feels so smooth and lightweight on the skin, it absorbs quickly and leaves my face feeling hydrated without being sticky. It’s super effective for fading acne scars and dark spots, and I always notice extra brightness and glow the next morning after using it.
What makes it even better is how affordable it is compared to other Vitamin C serums—such great quality for the price! Plus, the bottle lasts a long time since just two pumps are enough for the entire face. Gentle scent, hydrating, effective, and budget-friendly… I couldn’t recommend it more
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Reviewed in the United States on October 3, 2025
★★★★★ 5
Fantastic Fragrance Free Vitamin C
Really nice Vitamin C product. It goes on nicely without any off putting scent. I tried this one after trying another Vitamin C serum my dermatologist recommended, but the consistency and smell of the other one makes this one a dream to use in comparison.
Instead of a dropper, it is dispersed using a pump. The consistency is thin, but not watery. It does not leave my skin feeling sticky. I love not having it drip all over my face. Leaves a nice glow without being shiny.
Time will tell how effective it is at fading brown spots, but as with the other Good Molecules products, this is a great product for a great price.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Great buy and a have to try
This is a very nice vitamin C serum/cream. It spreads nicely, so you do need a lot. A little really does go a long way. I wash my face, apply serums, and then apply this on top before my moisturizer. It doesn't pill up at all for me. In fact, it layers really well. It's dry time is fairly quick, and it's a GREAT value for your money. It's also not oily at all.
I've been using it for over a week now and I can tell my complexion is brighter and the one dark spots are s bit lighter. I'd say it's pretty effective.
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Reviewed in the United States on March 7, 2026