LAiV Crescendo BEAT is a dual-output LPS linear power supply designed to provide stable power to compatible digital audio components. Part of LAiV’s Crescendo range, it provides two fixed and independent voltages: 15 V at 2 A and 5 V at 3 A. Both outputs are active simultaneously, so a single unit can power two separate devices, provided they use the correct voltage and have compatible connectors.

Dual-output linear power supply

The Crescendo BEAT is intended for systems in which power supply quality and stability are important aspects of the installation. Unlike a solution with a single rail, this model offers two separate rails with predefined values: a 15 V rail and a 5 V rail. The voltages are not adjustable, so it is essential to check the electrical requirements of the devices to be connected before use.

The 15 V/2 A line uses an output with a 5.5/2.5 mm DC barrel connector, while the 5 V/3 A line uses a 5.5/2.1 mm DC barrel connector. The different connector configuration helps distinguish the two outputs, but does not replace checking the compatibility specified by the audio component manufacturer. Both lines remain available at the same time and can be used to power two devices connected to the system.

Toroidal transformer and filtering

Inside the Crescendo BEAT, a single-core 70 VA toroidal transformer is used. This architecture is combined with a rectification system using Schottky diodes and total filtering capacitance of 17,990 µF. Together, these elements form the power supply stage from which the two available outputs are generated and stabilised.

The filtering is followed by two-stage linear regulation for each output. The multi-stage design allows the two lines to be treated separately, maintaining the power supply according to the values specified by the product. The declared ripple rejection figure is greater than 82 dB, while output noise is specified as up to 10 µVrms at no load and up to 50 µVrms at full load.

These values describe the declared electrical characteristics of the power supply under the specified measurement conditions. They do not represent a promise of improved sound in every system: the result also depends on the connected devices, cabling, system configuration and electrical compatibility.

Connection to audio components

The Crescendo BEAT can be considered for powering streamers, DACs and other digital Hi-Fi components requiring one of the two available voltages. The output must be selected exclusively according to the data required by the device being powered. Before connecting, it is necessary to check voltage, current draw, polarity and DC barrel connector size.

• 15 V output: 2 A, with a 5.5/2.5 mm DC barrel connector.
• 5 V output: 3 A, with a 5.5/2.1 mm DC barrel connector.
• Simultaneous operation: both rails are active at the same time.
• Fixed voltage: neither output is adjustable.

The presence of two lines makes it possible to organise the power supply for multiple system elements with a single device, without having to use two separate power supplies. The connection must nevertheless comply with the limits specified for each output. A mechanically compatible connector alone does not guarantee that the voltage and current are suitable for the device.

Protection and operation

To help protect the unit and connected devices, the LAiV Crescendo BEAT integrates protection against overcurrent, overvoltage, overtemperature and short circuits. These systems are designed to intervene when the abnormal conditions covered by the power supply’s design occur. In the event of irregular operation, failure to switch on or output interruption, it is nevertheless advisable to switch off the system and check the connections.

The chassis is made of aluminium and cooling is completely fanless, meaning that it does not use a fan. The absence of fans helps maintain a simple configuration without mechanical ventilation components. As with any power supply, it is advisable to leave space around the product and not cover the ventilation surfaces or place it in a way that obstructs heat dissipation.

Mains input and installation

The mains input accepts 100–127 V or 220–240 V power, with selection of the relevant range, and operates at 50/60 Hz. Connection to the mains is made via an IEC C14 socket. The product also includes a fuse specified as T2A. Before switching on, it is important to check that the mains voltage selection corresponds to the system being used.

Declared idle consumption is 1.3 W at 230 V. Installation should be carried out on a stable, dry and adequately ventilated surface. After checking the audio component’s specifications, the appropriate cable can be connected to the 5 V or 15 V output, avoiding forcing the connector. If both outputs are used, each device must be connected to its correct line.

Size, materials and availability

Measuring 168 × 167 × 70 mm, the Crescendo BEAT has a compact format for integration into a home audio system or a configuration with multiple digital sources. The aluminium chassis is available in Black or Silver finishes, allowing a choice consistent with the rest of the system.

The product belongs to the Crescendo family and is identified by SKU BEAT. The package includes a welcome card with quick start guide. The stated warranty is 2 years. To maintain correct operation over time, it is advisable to use the product according to its specifications, regularly check the cables and not connect devices with requirements different from those supported by the available outputs.

Why choose Crescendo BEAT

The practical value of the LAiV Crescendo BEAT lies in the combination of dual output, linear power supply and separate management of the two voltages. The ability to simultaneously power a 15 V device and a 5 V device can simplify the cabling of a digital system, while the toroidal transformer, 17,990 µF filtering and two-stage linear regulation define the unit’s electrical architecture.

It is a solution to consider when system components require precisely 5 V or 15 V and when a power supply with an aluminium chassis, fanless operation and integrated protection is desired. Checking the devices’ technical data remains essential: the Crescendo BEAT is not a universal power supply and its outputs cannot be adapted to different voltages.

Main technical data

• Type: LPS linear power supply.
• Outputs: 15 V/2 A and 5 V/3 A, active simultaneously.
• Regulation: two-stage linear.
• Output noise: ≤ 10 µVrms at no load; ≤ 50 µVrms at full load.
• Ripple rejection: greater than 82 dB.
• Transformer: single-core toroidal, 70 VA.
• Filtering: 17,990 µF.
• Dimensions: 168 × 167 × 70 mm.
• Input: selectable 100–127 V / 220–240 V, 50/60 Hz, IEC C14.
• Material and finishes: aluminium, Black or Silver.

Main features

• Product type: LPS
• Chassis material: Aluminium
• Filtering capacitance: 17,990 µF
• Idle consumption: 1.3 at 230 V W
• Mains connector: IEC C14
• Mains frequency: 50/60 Hz

Technical specifications

Product type	LPS
Chassis material	Aluminium
Filtering capacitance	17,990 µF
Idle consumption	1.3 at 230 V W
Mains connector	IEC C14
Mains frequency	50/60 Hz
Mains input	Selectable 100–127 V / 220–240 V
15 V output connector	5.5/2.5 mm DC barrel
5 V output connector	5.5/2.1 mm DC barrel
Output noise at full load	≤ 50 µVrms
Output noise at no load	≤ 10 µVrms
Output rails	15 V at 2 A and 5 V at 3 A, both active simultaneously
Output voltage type	Fixed, non-adjustable
Product family	Crescendo
Product range	Crescendo
Type abbreviation	LPS
Protection	Overcurrent, overvoltage, overtemperature and short circuit
Rectification	Schottky diodes
Regulation	Two-stage linear
Ripple rejection	> 82 dB
Transformer power	70 VA
Transformer type	Toroidal, single-core
Warranty	2 years

Technical insights

The listed specifications help compare the product’s configuration, compatibility and performance.

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Frequently asked questions

Which outputs does the LAiV Crescendo BEAT offer?

It offers two outputs active simultaneously: one at 15 V and 2 A with a 5.5/2.5 mm DC barrel connector, and one at 5 V and 3 A with a 5.5/2.1 mm DC barrel connector.

Are the output voltages adjustable?

No. The two voltages are fixed: 15 V and 5 V. Before connecting, it is therefore necessary to check that the audio device requires exactly the correct value.

Is it possible to power two devices simultaneously?

Yes. Both lines are active at the same time and can power two separate devices if the voltage, current, polarity and connectors are compatible.

Which protections does the power supply include?

The Crescendo BEAT includes protection against overcurrent, overvoltage, overtemperature and short circuits.

What is the declared idle consumption?

Declared idle consumption is 1.3 W at 230 V.