EARTHQUAKE TNT900 Tremor Fusion Mosfet Power Amplifier 5-CHANNEL

( Brand: Earthquake ), ( Manufacturer Part Number: TNT900 ), ( Part Type: Amplifier )

Review EARTHQUAKE Tremor Fusion Driven Mosfet Power Amplifier 5-channel

The **Earthquake TNT900 Tremor Fusion MOSFET Power Amplifier** is a high-performance, multi-channel powerhouse designed for audiophiles and professionals who demand uncompromising sound quality, reliability, and versatility. Engineered with cutting-edge **MOSFET technology**, this amplifier delivers exceptional power efficiency, minimal distortion, and a dynamic, engaging soundstage that brings every track to life with remarkable clarity and depth. With a **5-channel configuration**, the TNT900 is ideal for both home theater setups and high-end stereo systems, offering seamless integration with a wide range of audio sources, including AV receivers, preamplifiers, and digital processors. Its robust construction features a **heavy-duty chassis** built to withstand rigorous use, ensuring long-term durability while maintaining pristine audio performance.

At the heart of the TNT900 lies a **fusion of analog and digital precision**, combining Earthquake s signature **Tremor Fusion** circuit design with advanced MOSFET power stages that deliver **high current output with near-zero thermal expansion**, eliminating the risk of microphonic noise or performance degradation under heavy loads. The amplifier s **class-D architecture** ensures energy efficiency without sacrificing audio fidelity, making it an eco-conscious choice for power-hungry systems. Each channel is independently regulated, allowing for balanced power delivery across all outputs, whether driving speakers in a surround sound configuration or powering a high-end stereo pair with flawless accuracy.

The TNT900 s **user-centric controls** include intuitive knobs for **volume, balance, and subwoofer level adjustments**, along with a **low-pass filter** to fine-tune bass response for optimal speaker compatibility. Its **high-current MOSFET drivers** provide seamless power transfer, reducing phase shift and ensuring a **fast, responsive, and natural sound signature** that enhances both music and movie audio with remarkable realism. The amplifier s **low-noise preamp section** further refines the signal chain, ensuring that even the subtlest details in your audio are preserved with exceptional clarity.

Built for **serious audiophiles and home theater enthusiasts**, the TNT900 Tremor Fusion MOSFET Power Amplifier excels in **high-impedance speaker compatibility**, delivering consistent performance across a wide range of load conditions. Its **overload protection and thermal management systems** guarantee long-term reliability, while the **modular design** allows for easy upgrades and customization. Whether powering a **7.1-channel surround sound system** or a **high-end stereo setup**, the TNT900 sets a new standard for **power, precision, and musicality**, making it a standout choice for those who refuse to compromise on audio excellence.

The **Earthquake TNT900 Tremor Fusion MOSFET Power Amplifier (5-channel)** is a high-end audio amplifier designed for audiophiles and professional sound systems. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

---

### **Pros**

1. **High-Quality MOSFET Technology**

The amplifier uses MOSFET transistors, which are known for their low distortion, high efficiency, and ability to handle high power levels with minimal heat buildup. This results in cleaner sound reproduction and better dynamic performance compared to traditional bipolar junction transistor (BJT) amplifiers.

2. **5-Channel Configuration**

The 5-channel layout provides flexibility for various speaker setups, including surround sound systems, home theater configurations, or multi-room audio applications. This makes it suitable for both home and professional use.

3. **High Power Output**

With a power output of up to **900 watts per channel (2 ohms, 20Hz-20kHz, 1% THD)**, this amplifier delivers substantial power for large speakers, subwoofers, or high-efficiency drivers. It can drive demanding loads without significant clipping or distortion.

4. **Advanced Circuit Design**

The "Fusion" technology integrates multiple amplification stages and signal processing techniques to enhance sound quality. Features like **Earthquake s proprietary circuit design** aim to reduce noise, improve transient response, and deliver a more detailed and accurate audio signal.

5. **Durability and Build Quality**

Earthquake amplifiers are known for their robust construction, using high-quality components and shielding to minimize interference. The TNT900 is built to last, with a sturdy chassis and reliable power supply components.

6. **Compatibility with High-End Audio Gear**

The amplifier is designed to work seamlessly with high-resolution audio sources, including DACs, preamps, and professional audio interfaces. It supports balanced and unbalanced inputs, making it versatile for different setups.

7. **Low Distortion and Noise Floor**

MOSFET amplifiers inherently produce less distortion and noise compared to BJT amplifiers, which is critical for audiophiles who prioritize sound purity. The TNT900 maintains a low distortion profile even at high power levels.

8. **Thermal Management**

Earthquake amplifiers incorporate effective cooling systems, including large heatsinks and high-quality fans, to dissipate heat efficiently. This ensures stable operation and longevity, even during prolonged use.

9. **Professional-Grade Features**

The amplifier includes features such as **overload protection, short-circuit protection, and thermal shutdown**, which safeguard both the amplifier and connected speakers from damage.

10. **Audiophile Sound Signature**

Earthquake amplifiers are praised for their ability to reproduce music with clarity, depth, and accuracy. The TNT900 is no exception, offering a soundstage that is wide, detailed, and free from artifacts.

---

### **Cons**

1. **High Cost**

The TNT900 is an expensive amplifier, often priced in the **$2,000 $3,000 range or higher**, depending on the retailer and any additional accessories. This makes it a significant investment, which may not be justified for casual listeners or those on a tight budget.

2. **Power Consumption**

High-power amplifiers like the TNT900 draw substantial electricity, especially when running at full power. This can lead to higher energy bills, particularly for users with large speaker systems or frequent high-volume listening sessions.

3. **Size and Weight**

The amplifier is a **large and heavy unit**, typically weighing around **50 70 lbs (23 32 kg)**. This can make installation and placement challenging, especially in smaller rooms or homes with limited space. It may require a dedicated rack or stand.

4. **Complex Setup and Configuration**

High-end amplifiers like the TNT900 often require careful setup, including proper grounding, speaker matching, and signal routing. Users may need to consult manuals or seek professional assistance to optimize performance, which can be time-consuming.

5. **Limited Mobility**

Due to its size and power requirements, the TNT900 is not a portable amplifier. It is designed for fixed installations, such as home theaters, studios, or professional sound systems, rather than on-the-go use.

6. **Potential for Overkill**

For users with smaller speaker systems or lower-power setups, the TNT900 may offer more power than necessary. Excessive power can sometimes lead to **ringing or boomy bass** if not properly matched with speakers, as the amplifier may overdrive the speakers' capabilities.

7. **Dependence on High-Quality Inputs**

The amplifier s performance is only as good as the audio source feeding it. If connected to a low-quality DAC, preamp, or source, the overall sound quality may not reach its full potential. This requires investing in complementary high-end components.

8. **Limited Availability and Support**

Earthquake amplifiers are not as widely distributed as mainstream brands. Finding authorized dealers, spare parts, or technical support may be difficult in some regions, which could be a concern for long-term ownership.

9. **Noise and Interference Sensitivity**

While MOSFET amplifiers are generally low-noise, high-end amplifiers can still pick up electromagnetic interference (EMI) or radio frequency interference (RFI) if not properly shielded or installed. Users may need to take extra precautions to minimize interference.

10. **Learning Curve for Advanced Features**

Some Earthquake amplifiers include advanced features or customization options that may require familiarity with audio engineering concepts. New users might find the manual or setup process overwhelming without prior experience.

---

### **Conclusion**

The **Earthquake TNT900 Tremor Fusion MOSFET Power Amplifier** is a **premium, high-performance amplifier** that excels in delivering **clean, powerful, and detailed audio**. It is ideal for **audiophiles, home theater enthusiasts, and professional sound systems** where sound quality and reliability are paramount. The MOSFET technology, high power output, and robust build quality make it a standout choice for users who demand the best from their audio equipment.

However, the **high cost, size, and complexity** of the TNT900 mean it is **not suitable for casual listeners, budget-conscious buyers, or those with smaller setups**. It is an amplifier that **pays off in terms of sound quality and longevity**, but only for users who are willing to invest in a top-tier audio experience and have the space and resources to accommodate it.

---

### **Recommendation**

- You are an **audiophile or home theater enthusiast** who prioritizes **sound purity, power, and durability**.

- You have a **high-end audio system** with **quality speakers, DACs, and preamps** that can fully utilize its capabilities.

- You are willing to **invest in a premium amplifier** and have the **space and electrical infrastructure** to support it.

- You require **5-channel amplification** for surround sound or multi-room setups.

- You value **MOSFET technology** for its **low distortion, efficiency, and high power handling**.

- You are on a **tight budget** or looking for a **more affordable alternative** (consider brands like **Klipsch, QSC, or Crown** for high-power options).

- Your **speakers or audio sources are not high-end**, as the amplifier s performance will be limited by weaker components.

- You need a **portable or compact amplifier** for mobile use.

- You are a **casual listener** who does not require professional-grade audio quality.

- You cannot **properly install and ground** the amplifier to avoid interference or electrical issues.

- **Klipsch KTA-9000** (high-power, MOSFET-based, slightly more affordable).

- **QSC RMX-16H** (professional-grade, reliable, and versatile).

- **Crown XLSd Series** (high-end, MOSFET, with excellent build quality).

- **Earthquake TNT700** (if you need slightly less power but still high-end performance).

In summary, the **TNT900 is one of the best amplifiers for audiophiles and professionals**, but it is **not a necessity for everyone**. Carefully evaluate your needs, budget, and system setup before making a purchase.

Details:

Untested but looks to be in good condition.

part #: tnt900 prices

• $115.00-$219.00

specifications caramplifieca:

• brand: Earthquake
• mpn: Tnt900
• part type: Amplifier

payments caramplifieca:

• credit card: Mastercard
• other
• wallet: Paypal

general caramplifieca:

• Vehicle Electronics GPS > Car Audio > Car Amplifiers
• condition: Used

seller caramplifieca:

• # reviews: 1283
• rating: 99.7%
• city: Spring Grove, Illinois

returns caramplifieca:

• policy: No Returns

shipping caramplifieca:

• transit: 4-8 Days
• service: USPS Ground Advantage
• class: Standard
• cost: $25.65
• type: Calculated
• carrier: USPS

offer caramplifieca:

• best offers: True
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: February 16, 2026
• sold: 0

Earthquake TNT900 Is Similar To:

• 200dhc Mark2 Earthquake Old School Amplifier Rare Vintage Usa Amp (39.7% similar) Super old school rare Earthquake 200DHC MARK2. Does have some scratches but over all its a very good amp...(March 26th, 2018)
• 200x Earthquake Power American Made Amp (45.5% similar) Earthquake power 200X American made. Condition is new other see details. Shipped with USPS priority mail...(April 2nd, 2018)
• 400tx Earthquake Sound Power Old School Car Audio Amplifier (46.2% similar) ...(November 6th, 2018)
• D1000 Earthquake Mini Class D Amplifier (45.5% similar) Max power output watts x 1 chan. Mono block mini mono compact car power rating 4 ohms 180 watts x 1 chan. Pulse width modulated mosfet power supply wired remote bass level control included led power green and protect red indicators variable bass boost to 12 db bass boost at 50 Hz soft start ...(August 8th, 2016)
• Pa-2020 Earthquake Vintage Old School Power Car Amplifier Mosfet Made In The Us (46.7% similar) Great condition, has a few bad spots but in really good condition. There are a few dings in the heat sink fins. Up for offer is a classic Earthquake pa 2020 car audio amplifier...(July 13th, 2016)
• Pa-2150 Earthquake Old School Amplifier Usa Amp (44.1% similar) I have done by best to accurately represent the true condition of this amplifier. Other than that this amplifier is in really great shape. This is a working Earthquake pa 2125 700WATT RMS amplifier and it is pretty. Also see that in the positive speaker terminal for channel 1 the screw head is ...(June 8th, 2016)
• Pa-4050c Earthquake Rare 560 Watts Rms 2 Ohms 4 Channel Car Amp Old School Wow (28.2% similar) Please be advised. Rare Earthquake pa 4050C 560 watts RMS 2 ohms 4 channel carper condition for old school normal usage wear carefully review all photos information before placing a bid...(November 15th, 2016)
• Ph1500w.2 Earthquake New Old School 2 Channel Amplifier Rare Nos Nib Usa Made (36.5% similar) Has the manual, but not in original box. Brand new in the box from 2000 very rare. Retail on these was you are looking at an ultra rare Earthquake PH1500W channel amplifier. Legends of car audio be sure to see the picture of the birth sheet, thesis under rated...(November 27th, 2015)
• Ph300.1 Earthquake Factory Refurb Old School 2 Channel Amplifier Rare Usa (43.1% similar) Factory refurbished by Earthquake. Legends of car audio retail on these was you are looking at an ultra rare Earthquake PH300. 1/2 channel amplifier. Very powerful amplifier and old school USA made...(March 1st, 2016)
• Ph5000wd Earthquake Factory Refurbished Old School Monoblock Amplifier Rare Usa (44% similar) Factory refurbished from the year 2000 very rare. Legends of car audio I included a picture of the specs retail on these was you are looking at an ultra rare Earthquake PH5000WD mono block amplifier. This is the that replaced the legendary PHD3. Has the factory brochure, but not in original box...(September 28th, 2016)
• Ph500.1 Earthquake Factory Refurb Old School 2 Channel Amplifier Rare Usa (43.1% similar) Legends of car audio retail on these was you are looking at an ultra rare Earthquake PH500. Channel amplifier. Factory refurbished by Earthquake. Very powerful amplifier and old school USA made...(January 1st, 2016)