Lector audio ZUM-H
A Hybrid Design for Optimal Sound Reproduction
The Lector ZUM-H headphone preamplifier stands out with its hybrid design, cleverly combining tubes and transistors. This approach harnesses the best of both technologies: the warmth and musicality characteristic of tubes, paired with the precision and control provided by transistors. The result is a balanced, detailed, and natural sound reproduction that reveals every nuance of your recordings.
The ZUM-H’s input stage uses 12AX7 tubes, renowned for their ability to add smoothness and depth to the sound. These tubes are followed by a transistor-based output stage, ensuring powerful and controlled amplification. This configuration delivers the best of both worlds, offering a sound signature that is both warm and precise.
Power Suited for All Headphones
The Lector audio ZUM-H doesn’t just deliver exceptional sound quality; it also boasts substantial power reserves. With an output of 4 W at 30 Ω or 1 W at 300 Ω, this amplifier can efficiently drive a wide range of headphones, from highly sensitive models to those with demanding impedance requirements.
This versatility allows audiophiles to fully enjoy their high-end headphones, whether they are power-hungry planar magnetic models or more conventional dynamic headphones. The ZUM-H provides generous amplification, enabling each driver to reach its full potential without ever running out of steam.
Faithful Sound Reproduction Across the Spectrum
The quality of a headphone preamplifier is often measured by its ability to faithfully reproduce the entire audible spectrum. The Lector audio ZUM-H excels in this area, with an extended frequency response from 20 Hz to 20 kHz. This wide bandwidth ensures precise reproduction of deep bass, rich midrange, and crystal-clear highs.
Classical music enthusiasts will appreciate the ZUM-H’s ability to convey the full dynamics of an orchestra, from the subtle nuances of string instruments to the powerful bursts of brass. Jazz lovers will be captivated by the precise reproduction of double basses and the warmth of saxophones. Meanwhile, electronic music fans can enjoy deep, controlled bass without compromising on definition.
A Versatile Preamplifier
Beyond its capabilities as a headphone amplifier, the Lector audio ZUM-H also serves as a high-quality passive preamplifier. Equipped with multiple inputs, it can act as the control center for a complete hi-fi system. This versatility makes it an excellent choice for audiophiles looking to optimize their setup without adding multiple devices.
As a preamplifier, the ZUM-H retains the sonic qualities that make it renowned in headphone mode. Transparency and musicality are ever-present, allowing you to get the best out of the sources and power amplifiers it’s paired with.
Elegant and Functional Design
Lector audio has not overlooked the aesthetic aspect of the ZUM-H. Its compact brushed aluminum casing exudes understated elegance, blending seamlessly into any audiophile environment. The minimalist front panel features a large volume knob, providing precise and tactile control over listening levels.
High-quality audiophile-grade connectors, both for inputs and outputs, ensure optimal signal transmission. The front-panel headphone jack, in a robust 6.35 mm format, is compatible with most high-end headphones on the market.
Handcrafted Quality Assurance
True to its reputation, Lector audio pays meticulous attention to the craftsmanship of the ZUM-H. Each unit is hand-assembled in Italy, ensuring impeccable finishing and quality control. The components are carefully selected for their acoustic performance, guaranteeing consistent sound quality and reliability.
This artisanal approach is evident in its performance, as the ZUM-H delivers refined and consistent sound, a testament to proven audiophile expertise.
Technical Specifications
Audio Performance
- Output power: 4 W at 30 Ω or 1 W at 300 Ω
- Frequency response: 20 Hz to 50 kHz ± 1.5 dB
- Line input sensitivity: 350 mV
- Total harmonic distortion (THD): < 0.01%
- Signal-to-noise ratio: 100 dB (A)
Connectivity
- Outputs:
- 2 RCA recording outputs
- 1 passive preamplifier output
- 1 headphone output
Physical Specifications
- Dimensions (W × H × D): 400 × 85 × 300 mm
- Weight: 5 kg
Power Supply
- Voltage: 100, 110, 230, 240 V AC
- Frequency: 50, 60 Hz
- Power consumption: 20 VA
Frequently Asked Questions
Is the Lector audio ZUM-H compatible with all types of headphones?
The ZUM-H is designed to work with a wide range of headphones, from low-impedance models to those with more demanding requirements. Its generous output power allows it to drive most audiophile headphones on the market effectively.
Can the ZUM-H be used as a preamplifier in a hi-fi system?
Absolutely, the ZUM-H includes passive preamplifier functionality, making it suitable as a volume controller and source selector in a complete hi-fi setup.
What is the lifespan of the tubes used in the ZUM-H?
The 12AX7 tubes used in the ZUM-H typically have a lifespan of several thousand hours. Replacing them is straightforward and ensures the device maintains optimal performance over the long term.
Does the ZUM-H require a warm-up time to reach optimal performance?
Like all tube-based devices, the ZUM-H benefits from a short warm-up period to reach its ideal operating temperature. A few minutes are usually sufficient to fully enjoy its sound quality.
Can the ZUM-H be used with digital sources?
The ZUM-H is equipped with analog inputs. To use it with digital sources, you’ll need to connect them via an external digital-to-analog converter (DAC).
- Eco-contribution included in the sale price.

