External Power

About Power Supplies

An external power supply conforming to the specifications listed in the following “Power Supply Specifications” section must be used to guarantee that published SoundPals performance figures are met. Any power supply meeting these specifications will supply adequate power for a single SoundPals module. Although the specification is written for power supplies running from AC line inputs, DC (battery) sources may be used if they meet all of the listed requirements.

CE Compliance

For CE compliance, the power supply that you use must comply with the following requirements:

Low Voltage Directive 73/23/EEC

EMC Directive 89/336/EEC

EMC Directive 93/68/EEC

The connector locking ring must be tight.

Portable Power Sources

For portable SoundPals power sources, sealed lead-acid, nickel cadmium or alkaline primary batteries may be used. However, the maximum voltage must not exceed 8.6 volts, and a minimum of 5.6 volts is required for normal operation. Maximum current drain will be 215mA.

Power Supply Specifications

The following specifications must be met over all anticipated operating conditions including AC power line range, temperature range, etc.

Parameter

Specification

Output voltage

5.6V minimum (measured at trough of ripple) at 215 mA constant current.

 

8.6V maximum (measured at peak of ripple) at 140 mA constant current.

Ripple voltage

2V p-p at 700mA constant current.

 

400mV p-p at 700mA constant current with external 2200F capacitor.

Connector

Switchcraft 761K with center positive, sleeve negative.

Power Supply Sources

In addition to the GPS-supplied universal power supply, the following power supplies meet the SoundPals requirements:

Company

Model

 

 

Note

Stancor

STA-4860

120V

AC, 60

Hz

Stancor

STAF-0797F

220V

AC, 50

Hz with European wall plug (CE compliant).

Elpac

MI2007

95-250V AC, 47-63 Hz with IEC inlet (line cord required). Will power up to six

 

 

units (CE compliant).

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ADAT-4 User Guide

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Philips ADAT-4 manual About Power Supplies, CE Compliance, Portable Power Sources, Power Supply Specifications

ADAT-4 specifications

The Philips ADAT-4, a groundbreaking digital audio tape recorder, represents a significant advancement in recording technology. Launched by the Dutch electronics giant Philips, this innovative device is well-regarded for its precision and versatility, making it a staple in both professional studios and personal music setups.

At the heart of the ADAT-4 is its ability to record eight tracks of audio simultaneously. This multi-tracking capability allows musicians and sound engineers to layer multiple audio sources, such as vocals, guitars, and drums, creating rich and complex soundscapes. The machine operates using a unique digital audio tape (DAT) format, which ensures high fidelity and clarity in sound reproduction.

One of the standout features of the ADAT-4 is its user-friendly interface. The front panel is equipped with a series of intuitive controls, enabling users to navigate between various functions seamlessly. The LCD screen displays real-time information about recording levels, track status, and remaining tape time, allowing for efficient monitoring during sessions. This design philosophy reflects Philips’ commitment to making professional recording accessible to all.

In terms of connectivity, the ADAT-4 is versatile, featuring multiple input and output options, including S/PDIF and optical connections. This capability allows it to integrate smoothly with other digital equipment, such as mixing consoles and synthesizers, enhancing its utility in a studio setting. Additionally, the ADAT format was designed to support a wide range of audio processing technologies, making the ADAT-4 compatible with various audio formats and systems.

The sophisticated error correction technology in the ADAT-4 further enhances its reliability. It utilizes advanced algorithms to detect and repair any audio data discrepancies, ensuring that recordings are as pristine as possible, even in challenging conditions. This feature is particularly critical in professional settings where audio integrity is paramount.

The build quality of the ADAT-4 is another noteworthy aspect, showcasing Philips' dedication to durability. Constructed with high-quality materials, the device is built to withstand the rigors of frequent use, making it a worthwhile investment for both amateur and professional audio engineers.

In conclusion, the Philips ADAT-4 is a remarkable digital audio tape recorder that combines advanced technology with user-centric design. Its eight-track recording capability, intuitive interface, versatile connectivity options, robust error correction, and durable construction make it an essential tool for anyone serious about audio production. Whether in a professional studio or for personal use, the ADAT-4 continues to be a beloved choice among audio enthusiasts.