4-PERSON FULL-SPECTRUM SAUNA
Amplify IV
For those who demand more of themselves, the enhanced Amplify IV full-spectrum sauna is hotter, faster, and more immersive. Our patented SoloCarbon® technology and optimized heat supports powerful detox, cardio, and recovery benefits in an intense experience.
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4-PERSON FULL-SPECTRUM SAUNA
The infrared you trust with the heat you crave
Full-spectrum infrared wavelengths
Intense heat, faster warm up
Powerful, safe, industry-leading technology
Integrated chromotherapy lighting
4-PERSON INFRARED SAUNA
Tour Amplify IV, our 4-person infrared sauna
The Amplify IV offers generous space for up to four-person use. It pairs higher intensity heat and full-spectrum infrared with the comfort, credibility and innovation you expect from the leaders in light science. Known for the most intense heat across our sauna lineup, Amplify is optimized to be hotter, faster, and more immersive. Patented SoloCarbon® heaters deliver a high quantity and quality of infrared energy for deep absorption, while additional halogen heaters intensify heat around you. Exclusive to Amplify IV, 7 an adjustable bench reclines for relaxation or removes entirely to create space for gentle movement, stretching, and yoga. Larger heater panels, refined system logic, a heat-tight double-pane door and other enhancements work together so you receive the hottest experience and the densest infrared — supporting your body’s needs for performance, recovery, and longevity.
- Chromotherapy Included. Your Amplify comes equipped with chromotherapy lighting. Chromotherapy is the science of using colors to adjust body vibrations to frequencies that result in health and harmony. Each color possesses frequencies of a specific vibration and each vibration is related to different physical symptoms. Chromotherapy works on various energy points to help your body re-establish its natural balance.
- Premium sound system. Bask in the superior sound from our premium sound system with bluetooth, mp3 WMA playback, AM/FM, AUX, and USB/SD inputs with built-in speakers. Choose your favorite music, close your eyes, and escape from the world for awhile.
- Sweat fast and deep. An Amplify series sauna gets hotter, heats fast, and delivers the detox, cardio and recovery benefits of Sunlighten’s patented SoloCarbon infrared.If you’re looking for intense heat and a good sweat, Amplify delivers that experience for you.
- 2 full spectrum high intensity heaters.The Amplify II provides a unique full spectrum infrared mix with two heater types working together. Sunlighten’s patented SoloCarbon far infrared heaters send the high quality and high quantity far infrared wavelengths and halogen heaters push the air temp up to 165 F/ 78.3 C, all with Sunlighten’s proprietary design that produces virtually no EMFs.
- Add-on sound therapy. You can unwind and de-stress even more in your sauna with a sound therapy add-on. This sonic technology combines the healing effects of sound and vibration therapy to relax your body and calm your mind. Sound-amplifying discs mounted under the bench utilize sound as a therapy modality.
Amplify IV Specifications
EXTERIOR
Width: 204 cm
Depth: 142 cm
Height: 197 cm
WEIGHT
Eucalyptus – 417.5 kg
HEATER/LED PANEL
8 FIR
4 Full Spectrum
*No floor heaters
INTERIOR
Width: 190 cm
Depth: 126 cm
Height: 178 cm
ELECTRICAL
BENCH
Width: 190 cm
Width: 75 cm
Eucalyptus
Industry-leading infrared saunas
Setting the standard in light science
With 50 owned and pending patents, and with saunas endorsed by over 200 scientists, doctors and longevity experts, Sunlighten is a trusted brand across the globe.
Clinically informed, expert approved
Sunlighten’s infrared light therapy is grounded in published research and expert perspectives, so you can choose with confidence.
Scientifically-verified, safe and clean
Our saunas are independently tested and third-party verified to emit less than 1 milligauss—well below the 10mG industry standard for “ultra-low” EMF exposure.
Purposefully designed to elevate your space
Built from quality materials and patented technology, our saunas complement luxury interiors while offering the depth of an elite wellness tool.
Frequently asked questions about the Amplify IV, our 4-person sauna
What makes the Amplify sauna different from other infrared saunas?
Amplify is Sunlighten’s most intense infrared sauna, combining full-spectrum infrared (near, mid, and far) with additional halogen heaters for higher heat. It’s designed for those who want to sweat deeper, faster, and feel more productive during and after their session.
Who is the Amplify sauna best suited for?
Amplify is ideal for high performers, biohackers, and athletes looking for muscle recovery, reduced inflammation, and enhanced full-body resilience. It’s like a high-intensity workout for your wellness routine.
What are the health benefits of using the Amplify sauna?
Amplify supports muscle recovery, helps reduce inflammation, enhances detoxification, boosts circulation, and promotes overall resilience. The high-intensity heat helps activate these benefits more quickly and deeply than traditional infrared saunas.
How hot does the Amplify sauna get?
Does the Amplify sauna use full-spectrum infrared?
Can I customize my sessions in the Amplify sauna?
While Amplify is designed for high-intensity heat, it still allows you to adjust session length and temperature, so you can tailor the experience to your preferences. For more customizable options, view our mPulse smart sauna collection.
How does Amplify compare to traditional saunas or steam rooms?
Unlike steam or traditional saunas, Amplify uses infrared light to heat the body directly rather than the air. This allows for a deeper, more productive sweat at a lower ambient temperature—enhanced by its full-spectrum + halogen heat combo.
Is the Amplify sauna safe to use frequently?
Yes. Infrared therapy is gentle and clinically shown to be safe for regular use. Many users enjoy Amplify several times a week as part of their health optimization routine.
How long should I stay in the Amplify sauna?
Typical sessions range from 20–45 minutes. Start with shorter sessions and gradually increase time as your body adapts to the higher heat and deep infrared penetration. Always consult your doctor or a medical professional for individual recommendations based on your unique health and wellness goals.
Can the Amplify sauna be used outdoors?
Our saunas are engineered for indoor use. If you plan to place your sauna outdoors—with or without a roof—a custom sauna cover is required to maintain your warranty coverage. Keep in mind that ambient temperatures can affect preheat time. In colder climates, your sauna may take longer to reach optimal heat levels. For best results, consult our placement guidelines or speak with a Sauna Consultant.
What is EMF, and why does it matter in a sauna?
EMFs (electromagnetic fields) are invisible waves of energy associated with electricity and wireless technologies. Prolonged exposure to high EMF levels may contribute to oxidative stress, fatigue, and other health concerns. Sunlighten saunas are third-party tested by Vitatech Electromagnetics and shown to emit ultra-low EMFs—giving you peace of mind during every session. Learn more about our safety testing and standards here.
How long do Amplify saunas take to heat?
All our saunas heat up at a pace that’s safe for the sauna, and for you. Amplify is designed to hit its higher target temperatures faster than our other models. In ideal conditions, this can be approximately one degree per minute. You can learn more here.
Experience infrared from the leaders redefining light science
Sunlighten is the whole-body longevity tool trusted by over 200 wellness experts and thousands of longevity optimizers, biohackers and health enthusiasts.
37 clinical studies and third-party testing supporting detox, heart health, recovery, and more
Proven, near-perfect emissivity that delivers 95-99% of therapeutic infrared wavelengths
The only infrared sauna with PulseIQ, the patented intelligent infrared platform advancing infrared delivery and control
30+ patents shaping the future of infrared innovation