Wizard High-End Audio Blog

Saturday, April 20, 2024

Gemstone Gemini

System: Three-way

Housing type: Closed

Sensitivity (2.83V/1m): 87 dB

Frequency response: 35 Hz - 40 kHz

Rated power: 90 W

Suggested amplification power: 80 - 240 W

Impedance: 4Ω

Dimensions: 30 x 37 x 105 cm

Weight: 40 kg

Additional information:

Crossover frequency: 220 / 2400 Hz

Friday, April 19, 2024

Lorenzo Audio 211PP

Power Amp Monoblock 211PP

Lorenzo Audio Labs, in its tireless quest to raise the bar of sound reproduction to the highest level, presents its Lorenzo Audio 211PP monophonic tube amplifiers.

The state of the art 221PP amps are the best match for the Lorenzo Audio Labs loudspeakers as well as for lovers of the highest quality sound.

You are facing one of the best audio amplifiers that can be manufactured. Not only do they feature the best components, which we will detail later, but also a philosophy that accompanies us in all our products, reach the auditory perfection. Handcrafted manufacturing with the extensive use of Panzerholz wood, this type of wood is highly appreciated for its non-resonant properties and linearity across the entire audio range, combined with exquisite aesthetics using the finest woods, marquetry and meticulous high-gloss finish, making it a true work of art.

After years of testing and development, we have opted for a Push Pull configuration with direct-heated triodes, with the 211 tubes, providing the transparency and harmonic richness of a single ended but with unprecedented speed and attack, offering a powerful 55W with zero feedback. At the heart of this stage stands a double Core C amorphous output transformer weighing 12 kg, featuring the legendary 2A3 tube directing the 211 tubes through a phase shift interstage, accompanied by a series of state-of-the-art components, such as high-voltage MKP gel filtering capacitors with a lifespan of over 30,000 hours, and ultra-fast rectifiers. And to eliminate any residual noise, the filaments are equipped with over 140,000uF, all powered by a double power supply through two independent transformers for low and high voltage.

It is worth noting that all circuits are hand-soldered without printed circuit boards.

Specifications:

- All-tube, transformer-coupled, zero feedback, push-pull architecture - Tubes: 2 x 211, 1 x 2A3, 1 x 6E5P

- Frequency range: 15 Hz - 25 kHz +/- 1.0 dB

- Inputs: 1 x RCA

- Input sensitivity: 1.0 Volts Output

- Rated power: 55W, 40W pure Class A

- Speaker impedance: 4ohm - 8ohm

- Dimensions: 51 x 66 x 50 cms. (width x depth x height)

- Net Weight: 75 Kg.

Worldwide launch at High End Munich 2024, Hall 2 F12/H01.