Silent Angel F1 Forester - Audiophile-Grade Linear Power Supply

Rs. 42,990.00

Forester F1 is a reliable linear power supply tailored for Bonn N8 and Raspberry Pie 4 Model B. The aim of Forester F1 is to bring the most real, pure and intact sound to customers. Zero noise, zero data corruption and zero power break-up.

To fulfil all Hi-Fi requirements on stable power source and multiple output connector type, Silent Angel perfectly add multiple technologies into Forester F1, which includes: high-efficiency toroidal transformer, advanced fully symmetric circuit design, low noise MOSFET in parallel and EMI filter.

It is not only a power supply, but also a guardian for the music journey. Compared with cheaper power supply, Forester  F1 has a more stable electricity input to ensure the consistency and integrity of the music enjoyment. Reference to running test, ONE Forester F1 can easily provide continuous and pure power to TWO Bonn N8 simultaneously.

Optimal materials to ensure machine quality

To present the originality of Silent Angel, the shell of F1 consists of high-quality-thick material to reduce vibration of transformer. The panel adopts CNC progressing to ensure congruence. Additionally, the surface adopts drawing progress to make the shell more pretty.


High-efficiency Toroidal-symmetric Transformer

The toroidal design approximately halves the occupied space and the weight of transformer comparing with the laminated design at the same degree. The improvement of efficiency is more obvious as well. The core permeability of toroidal design is higher than the laminated, which conduce to the electrical efficiency of transformer trend better consequently. In addition, the energy-saving superiority of toroidal design is that the no-load current is merely 10% comparing with the laminated.

Advanced Full Symmetric Circuit

A distinct advantage of F1 is fully symmetric circuit design. This design can eliminate noise inside F1 utmostly. The symmetric circuit is able to consolidate the accuracy of power output and ensure a stable power supplying likewise.

Low Noise MOSFET in Parallel

Like sluice gate to water flow rate, MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is a vital component for Forester F1 to control voltage output. Usually, low power appliance prefers to choose BJT (Bipolar Junction Transistor) as its output voltage controller. However, Forester F1 pursues the best user experience so that MOSFET is chosen. There are multiple preponderances of MOSFET. As MOSFET controls output by adjusting the gate voltage, its gate drive circuit is less complex than BJT’s base drive circuit. As a result of less complex design, the switching frequency of MOSFET is higher than BJT’s, which supports a more precise and stable voltage output.

Multiple types of output-connector

As tailored for Boon N8 and Raspberry Pie 4 Model B, Forester F1 covers two pairs of connectors, which consists of one USB and one DC plugs. Moreover, there are TWO 60 cm 5.5mm x 2.1mm DC plug to 5.5mm x 2.1mm DC plug and ONE 50 cm USB to micro-USB type-C in packing box to help users to connect F1 to the appliances they would like to use.


Dimensions: 155mm (W) x 115mm (D) x 58mm (H)
Device Weight: 1.3KG
Input: 230VAC or 115VAC 50/60Hz (with voltage selector)
Output: Dual 5V@2A
Output Connectors: DC PLUG *2, USB Type-A Female Connectors *2
LED indicators: Status LED *2, Over-Temperature-Protection LED *2


1.2m IEC Type AC Power Cord *1
60cm DC Plug (5.5mmx2.1mm) to DC Plug (5.5mmx2.1mm) Cable *2
50cm USB Type-A Male to USB Type-C Male Cable *1
Quick Start Guide *1
Warranty Card *1


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