Limestone PP1 Monoblock Amplifiers with Ray Tubes

Limestone's PP1 Monoblocks Now Feature Ray Tubes

The Croatian company Limestone, although relatively new in the hi-fi arena, has already caught our attention with their monophonic power amplifier, the PP1. This tube amplifier operates in class AB and confidently delivers 45W of power. Now, they've taken a significant step forward by announcing that the PP1 will be equipped with Ray Tubes.

Limestone expressed their enthusiasm on their website: "At Limestone, we're passionate about crafting amplifiers that embody the rich, warm tones of vintage sound while maintaining the reliability and performance offered by modern technology. That's why we're thrilled to announce our partnership with Ray Tubes, a name synonymous with excellence in tube technology and genuine craftsmanship. Together, we're taking our amplifiers to the next level."

Ray Tubes shares Limestone's commitment to quality, innovation, and the pursuit of perfect sound. Known for their precision engineering and unwavering dedication to vintage sound, Ray Tubes have become a cornerstone in modern tube amplifier design. By joining forces, each Limestone amplifier is powered by tubes that provide exceptional depth, character, and clarity of sound.

In the standard configuration, the Limestone PP1 monoblocks come equipped with tubes from the Ray Tubes Select series. For those seeking an even more refined sound, the Ray Tubes Reserve series is available as an option. These premium tubes are handcrafted to deliver enhanced performance, unmatched detail, and impressive dynamic sound. The Reserve series is ideal for music enthusiasts who demand the very best from their equipment.

Technical Specifications of the Limestone PP1 Tube Monophonic Power Amplifier:

• Output Stage: Push-pull, Class A/B, KT88/6SN7 tubes
• Output Power: 2 x 45W
• Frequency Response: 30Hz – 30kHz (-3dB)
• Total Harmonic Distortion: Less than 1% at 1kHz
• Signal-to-Noise Ratio: Approximately 85dB (noise around 1mV)
• Input Sensitivity: 0.7V RMS for full output power of 45W
• Recommended Load Impedance: 4 and 8 Ohms
• Dimensions (W x H x D): 25 x 25 x 55 cm
• Weight per Monoblock: 18 kg

It's exciting to see companies like Limestone and Ray Tubes collaborating to push the boundaries of what's possible in tube amplification. The blend of vintage warmth with modern reliability is something that resonates deeply with us. For those who appreciate the nuances of high-fidelity sound, the PP1 with Ray Tubes could be a compelling addition to any audiophile's setup.