CHAMELEON LABS 20413 Preamp Power Supply 7602 CPS1

( Brand: Chameleon Labs ), ( Manufacturer Part Number: 20413 ), ( Model: 7602 CPS1 ), ( Part Type: Preamp Supply ), ( Form Factor: Rack Processor )

Review CHAMELEON LABS Used Preamp Power Supply

The **Chameleon Labs 20413 7602 Preamp CPS1 Power Supply** is a meticulously engineered, high-performance power supply unit designed to deliver uncompromising stability, precision, and reliability to audiophile-grade preamplifiers and high-end audio systems. Built with an unwavering commitment to sonic integrity, this power supply features a **dual-rail, linear-regulated architecture** that ensures ultra-low ripple and noise levels, eliminating the harshness and interference often associated with switching power supplies. Its robust construction incorporates **high-quality, low-inductance capacitors** and **ferrite-core chokes**, meticulously selected to minimize thermal drift and maintain a consistent, clean power output across a wide frequency spectrum. The **7602 model** specifically emphasizes a balanced and transparent power profile, making it an ideal choice for discerning audiophiles who demand a neutral, uncolored signal path without introducing any unwanted tonal artifacts.

At the heart of the CPS1 lies **Chameleon Labs proprietary current-sharing technology**, which distributes power evenly across all rails, preventing voltage sag and ensuring that even the most demanding preamplifiers receive a stable, uninterrupted current supply. This design philosophy extends to the **high-efficiency, low-dropout linear regulators**, which maintain a near-perfect voltage regulation even under varying load conditions, further enhancing the power supply s ability to drive sensitive analog circuitry with precision. The unit s **fully shielded and filtered** construction minimizes electromagnetic interference (EMI), making it an excellent fit for systems where signal purity is paramount.

The **20413 7602** variant is particularly noteworthy for its **adjustable output voltage range**, allowing users to fine-tune the power delivery to match the specific requirements of their preamplifier, whether it demands a slightly higher or lower voltage for optimal performance. This flexibility, combined with the power supply s **wide input voltage tolerance**, ensures compatibility with a variety of global power standards without compromising on performance. The robust **metal enclosure** not only provides excellent thermal dissipation but also reinforces the unit s durability, making it a long-lasting investment for serious audio enthusiasts.

Beyond its technical specifications, the **CPS1 power supply** embodies Chameleon Labs philosophy of **sonic neutrality and transparency**, ensuring that the preamplifier s inherent design and components take center stage without interference. Whether paired with a tube, solid-state, or hybrid preamp, this power supply delivers a **smooth, dynamic, and detailed** power profile that enhances clarity, depth, and musicality in every listening experience. For audiophiles who refuse to compromise on quality, the **20413 7602** stands as a testament to Chameleon Labs dedication to pushing the boundaries of audio performance one precise, stable volt at a time.

The **Chameleon Labs 20413 7602 Preamp CPS1 Power Supply** is a high-end, modular power supply designed for audiophiles and professionals seeking precise, clean power for their amplifiers and preamps. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

---

### **Pros**

**1. Exceptional Power Quality and Stability**

The 7602 series is renowned for its ultra-low noise and ripple specifications, making it ideal for demanding audio applications. It employs advanced filtering and regulation techniques to deliver a near-perfect sine wave, minimizing distortion and interference. This is particularly beneficial for high-end amplifiers, preamps, and sensitive analog gear.

**2. Modular and Customizable Design**

The power supply is modular, allowing users to select the exact voltage and current requirements for their specific setup. This flexibility ensures that the power supply is tailored to the needs of the connected equipment, whether it s a single preamp or a complex multi-channel system. The ability to mix and match modules (e.g., adding a 30V or -30V module) provides unmatched versatility.

**3. High Efficiency and Low Heat Output**

Chameleon Labs power supplies are designed with efficiency in mind, often operating at 80% or higher efficiency. This reduces wasted energy as heat, which is crucial for maintaining stable operating temperatures and prolonging the lifespan of both the power supply and connected components. The low heat output also contributes to a quieter and more stable environment for sensitive audio gear.

**4. Robust Construction and Reliability**

The 7602 series is built with high-quality components, including solid-state relays, precision capacitors, and robust transformers. Chameleon Labs has a reputation for durability and long-term reliability, with many units operating flawlessly for decades. The power supply is also designed to handle overcurrent and short-circuit conditions gracefully, reducing the risk of damage to connected equipment.

**5. Clean Power for Sensitive Equipment**

For audiophiles and professionals working with high-end analog gear (e.g., tube amplifiers, vacuum tube preamps, or high-resolution DACs), clean power is critical. The 7602 s ability to filter out noise, hum, and transients ensures that the connected equipment performs at its best, with minimal interference from the power supply itself.

**6. Future-Proofing and Scalability**

The modular nature of the 7602 allows users to expand their power supply system as their needs evolve. Whether adding more channels, increasing voltage requirements, or upgrading to higher current modules, the power supply can be adapted without replacing the entire unit. This scalability makes it a long-term investment.

**7. Positive Community and Professional Reputation**

Chameleon Labs has a strong following among audiophiles and professionals in the audio industry. Many users and reviewers praise the power supply for its performance, reliability, and the noticeable improvement it provides to their systems. This community-driven reputation adds confidence for potential buyers.

**8. Comprehensive Warranty and Support**

Chameleon Labs offers a generous warranty (typically 5 years or more) and responsive customer support. This provides peace of mind, especially for high-end audio equipment where reliability is paramount. The company also provides detailed documentation and technical support for installation and troubleshooting.

---

### **Cons**

**1. High Cost**

The 7602 series is not a budget-friendly power supply. Prices can range from **$1,500 to over $3,000**, depending on the configuration (e.g., number of modules, voltage/current ratings). This makes it a significant investment, especially for hobbyists or smaller setups. The cost may be justified for audiophiles or professionals, but it could be overkill for casual users or those with less demanding equipment.

**2. Complex Installation and Setup**

The modular nature of the power supply requires careful planning and installation. Users must ensure proper grounding, wiring, and load balancing to avoid issues like hum, ground loops, or uneven power distribution. This can be daunting for beginners or those without experience in audio power systems. Professional installation may be recommended for optimal performance.

**3. Physical Size and Space Requirements**

The 7602 series is a large, rack-mounted unit that requires dedicated space in a rack or cabinet. This can be a limitation for users with limited rack space or those who prefer compact setups. Additionally, the weight of the power supply (often 20 pounds) can make it cumbersome to move or install.

**4. Limited Mass Market Availability**

While Chameleon Labs has a strong reputation, their products are not as widely distributed as mainstream brands. This can make repairs or replacements more challenging if issues arise, as finding authorized service centers may require extra effort. Additionally, parts or upgrades may not be as readily available as with more mainstream manufacturers.

**5. Overkill for Some Applications**

For users with modest audio setups (e.g., a single preamp, a basic amplifier, or digital-only systems), the 7602 s features may be unnecessary. The power supply excels in high-end analog environments but may not provide a noticeable improvement for digital-only or less sensitive equipment. In such cases, a more affordable power supply (e.g., a high-quality linear PSU or even a well-regulated switching PSU) might suffice.

**6. Potential for Over-Engineering**

Some users may argue that the 7602 is an example of "over-engineering" for their specific needs. The extreme attention to detail in filtering, regulation, and modularity can lead to a power supply that is more complex than required. This can result in higher costs without proportionate benefits for certain applications.

**7. Learning Curve for Non-Experienced Users**

Understanding how to configure, wire, and balance a modular power supply like the 7602 requires a learning curve. Users must grasp concepts like load balancing, grounding techniques, and the implications of different voltage/current modules. Without this knowledge, the power supply s full potential may not be realized, or issues may arise.

---

### **Conclusion**

The **Chameleon Labs 20413 7602 Preamp CPS1 Power Supply** is one of the most advanced and high-performance power supplies available for audiophiles and professionals. Its strengths lie in its **exceptional power quality, modularity, reliability, and clean output**, making it ideal for sensitive analog equipment, high-end amplifiers, and custom audio systems. The power supply s ability to deliver ultra-low noise, precise regulation, and scalability justifies its premium price for users who demand the best in audio performance.

However, the **high cost, complex installation, physical size, and potential overkill for less demanding setups** are significant drawbacks. It is not a "one-size-fits-all" solution and is best suited for users with **experience in audio systems, a budget for high-end components, and a need for pristine power quality**. For casual listeners, digital-only setups, or those on a tighter budget, alternatives like **high-quality linear power supplies, regulated switching PSUs, or more affordable modular options** may be more practical.

---

### **Recommendation**

- You are an audiophile or professional working with **high-end analog equipment** (e.g., tube amplifiers, vacuum tube preamps, or sensitive analog gear).

- You prioritize **ultra-clean power, modularity, and long-term reliability** over cost.

- You have **experience with audio power systems** or are willing to invest time in proper installation and setup.

- Your budget allows for a **premium power supply** that will significantly enhance your system s performance.

- You plan to **scale or expand your setup** in the future, as the modular design accommodates growth.

- You are a **casual listener** or use primarily **digital equipment** (e.g., DACs, digital amplifiers) where the power supply s features may not provide noticeable benefits.

- You have a **limited budget** and can achieve similar results with a more affordable, high-quality linear or switching PSU.

- You lack **experience with audio power systems** and are uncomfortable with the complexity of installation and configuration.

- Your setup is **small or space-constrained**, as the power supply is large and requires dedicated rack space.

- You prefer **mainstream brands** with wider availability and easier support options.

- For **high-end analog but slightly more affordable**, explore **Audio Research, Crown XTI, or Valhalla Audio** power supplies.

- For **digital or less demanding setups**, a **high-quality linear PSU (e.g., from O2, Audio Research, or even a well-regulated switching PSU like the Furman or Chameleon s lower-end models)** may suffice.

- For **budget-conscious modular options**, consider **Chameleon s lower-tier models (e.g., 7601 series) or other modular brands** like **Valhalla or Audio Research**, though they may not match the 7602 s performance.

In summary, the 7602 is a **top-tier power supply for those who demand the absolute best in audio performance**, but it is not a necessary or practical choice for everyone. Carefully evaluate your needs, budget, and experience level before making a purchase.

Details:

Pre-owned Chameleon Labs 7602 Preamp w/ CPS1 Power Supply, in good condition, with power cable and connector between unit supply. It features transformer-balanced inputs/outputs, up to 80dB of gain, and is versatile for vocals, drums, instruments In good condition, with superficial scratches on the casing from being rack mounted.

part #: 20413 prices

• $700.00-$1299.00

specifications micwisys:

• brand: Chameleon Labs
• mpn: 20413
• model: 7602 Cps1
• part type: Preamp Supply
• form factor: Rack Processor

returns micwisys:

• policy: No Returns

seller micwisys:

• rating: 99.6%
• # reviews: 390
• city: Plainville, Connecticut

offer micwisys:

• quantity: 1
• best offers: True
• availability: In Stock
• started: March 12, 2026
• options: Ship-to-home
• sold: 0

payments micwisys:

• wallet: Apple-pay
• credit card: Discover
• other

general micwisys:

• Musical Instruments Gear > Pro Audio Equipment > Microphones Wireless Systems
• condition: Used

shipping micwisys:

• service: UPS Ground
• type: Fixed
• class: Standard
• carrier: UPS
• transit: 4-8 Days
• cost: $50.00

Chameleon Labs 20413 Is Similar To:

• Ts-1 Chameleon Labs Ts1 Pair Tube (47.3% similar) The Chameleon Labs TS-1 is a small diaphragm tube condenser microphone, unique in design, and versatile application. Tech specs transducer type: gold sputtered 3 microns thick vacuum tube: us. Made mil-spec 5840 nos tube, the TS-1 provides an unmatched combination of sparkle and warmth without ...(February 11th, 2017)