Grapevine HeadAmp 4

designed by

HeadAmp 4

The HeadAmp 4 is a high-quality Class A headphone amplifier designed for a wide variety of studio and live applications. Next to the classic multi-headphone situa- tion for recording, the HeadAmp 4 is also ideal as a:

Reference studio amplifier

Perfect alternative to low-quality amplifier stages in sound cards and entry-level consoles

Active line-level signal distributor

The HeadAmp 4 is built in Germany to SPL standards for years of trouble-free service, using:

Internal power supply with standard IEC connector for easy, secure AC connection

Highest quality potentiometers and switches from ALPS

Double-sided PCB for maximum durability and contact reliability

Rugged metal casing

Key Features

High-quality, discrete Class A headphone amplifier circuits

Will also power low-impedance headphones

Handles even extremely high input levels, e.g. from other headphone outputs

Exceptionally low noise and distortion, especially at low impedances

Switchable input sensitivity

Four output modes: Stereo, Left Channel Only, Right Channel Only, Mono

Rear-panel connectors for daisy-chaining multiple units

Technical Specifications

 

Connectors:

balanced 1/4“ TRS

Input level:

+21.2 dBu (input -12 dB)

Input impedance:

10 kOhm

Output impedance:

50 Ohm

Output voltage:

600 Ohm/7.4 Veff

 

300 Ohm/7.1 Veff

 

150 Ohm/6.6 Veff

 

50 Ohm/5.3 Veff

Frequency response:

10 Hz-100 kHz (-0.5 dB)

THD+N:

95 dB

Noise:

-90 dBu

CMRR:

80 dB

Output resistance:

10 Ohm

Fuse:

125 mAT

Power supply:

block transformer, 5 VA

Dimensions:

19 inch, 1 U rack space

Weight:

4 lbs

SPL USA · 2498 Rikkard Dr. · Thousand Oaks, CA 91362. For further information call 805 241 5140, fax 805 435 7455, email info@spl-usa.com or visit www.spl-usa.com

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Sound Performance Lab Amplifiers technical specifications Grapevine HeadAmp, Key Features, Thd+N, Cmrr

Amplifiers specifications

Sound Performance Lab (SPL) is a renowned name in the audio industry, particularly recognized for its high-quality amplifiers that cater to the needs of professional sound engineers, musicians, and audio enthusiasts. Known for their innovative technology and attention to detail, SPL amplifiers have a distinctive place in studios and live sound environments around the world.

One of the standout features of SPL amplifiers is their exceptional audio fidelity. They are engineered with high-performance audio processing capabilities to deliver clean and powerful sound reproduction. This is particularly crucial for critical listening applications, where accuracy is paramount. The amplifiers are designed to faithfully reproduce audio signals, allowing users to hear every nuance in their recordings.

SPL utilizes cutting-edge technologies in their amplifier designs, such as Class A and Class D circuitry. Class A amplifiers are renowned for their linearity and low distortion, making them a favorite in the studio environment, while Class D amplifiers are appreciated for their efficiency and lightweight design. Many of SPL’s models feature hybrid circuitry that combines the best attributes of both classes, providing versatile performance suitable for a wide range of applications.

In addition to their rich sound quality, SPL amplifiers are built with durability in mind. Their robust construction ensures longevity, even under the demands of heavy use environments. This reliability is further enhanced by the use of high-quality components, including premium capacitors and transistors, which contribute to both the performance and lifespan of the products.

Another impressive attribute of SPL amplifiers is their advanced thermal management systems. These amplifiers are designed to maintain optimal operating temperatures, preventing overheating during intense sessions. This feature not only protects the equipment but also ensures consistent performance without the risk of thermal distortion.

SPL also incorporates user-friendly interfaces into their amplifier designs, making them accessible for both professionals and amateurs alike. Clear visual indicators and intuitive controls allow users to make precise adjustments, thereby enhancing the overall user experience.

Finally, the company emphasizes sustainability in their product designs. SPL amplifiers are built to be energy-efficient, reducing power consumption without compromising on sound quality. This commitment to sustainability reflects a broader trend in the industry, where eco-friendly practices are becoming increasingly important.

In summary, Sound Performance Lab amplifiers exemplify the fusion of innovative technology, durability, and exceptional sound quality, making them a preferred choice for anyone serious about audio production. Whether in a studio, a live performance, or at home, SPL amplifiers deliver an uncompromising audio experience that professionals and enthusiasts can rely on.