The Amp Box S3 is a space-saving, yet robust hi-fi stereo power amplifier, boasting an efficient yet powerful design that results in a warm, inviting sound that emulates the sonic characteristics of tube amplifiers.

The Amp Box S3 is specially crafted to minimize distortion and maximize the signal-to-noise ratio with a cutting-edge PCB concept and refined topology. This energy-efficient construction provides a rich, musical sound with a hint of analog warmth akin to high-end valve amplifiers. It also packs this advanced technology into a space-saving design, making it ideal for a variety of applications.

This small-scale amplifier is designed for rooms up to 15m2 in area, depending on the associate speaker setup. It can strengthen nearfield hi-fi systems, drive in-wall or in-ceiling speakers, or upgrade existing hi-fi and home theater systems with one stereo RCA input, a jack output, and trigger connections. Additionally, multiple amplifiers can be incorporated into bi- or tri-amplified systems.

Sitting on four rubberised feet and contained within a sturdy metal casework that boasts a clean, minimalist elegance for when it’s on show, the Amp Box S3 is designed to protect itself from electronic interference and vibration. The result is a purer musical signal that is true to the original recording, all presented in a spacious and comfortable sound stage.

 

Features

• Brand new PCB concept and sophisticated topology 
• Improved S/N ratio with lower distortion for a more accurate performance 
• Micro-sized footprint and casework for true flexibility in placement 
• Advanced amplifier module ensures a quality in playback that belies its size 
• Stereo inputs via RCA connectors 
• Speaker sockets are isolated for purity of signal 
• Banana/Spade/Pin/bare wire connectors offer the maximum ease of use 
• Trigger input and output for using further amp Box S3 units in tandem and Pre Box pairing
• Aluminium metal casing and rubberised feet protect against vibration and interference
• On/Off toggle switch on the front fascia for simplicity in operation
• Handmade in Europe
• Available in Black and Silver finishes

Specifications

Power Output:	2 x 23W/40W at 8 ohms/4 ohms (1% THD)
Peak Power:	2 x 50W at 4 ohms
Frequency Response (20Hz - 20kHz):	<-0,7dB at 4 ohms
Channel Separation:	>-68dB at 20kHz
Signal to Noise Ratio:	87dBV (100dBV - 'A' weighted) at 4ohms
THD + N:	<0,02% at 10W at 4 ohms
Gain:	31 dB
Line input sensitivity:	360mV
Pre In:	1 pair RCA
Bypass Output:	Jack socket 3,5mm stereo
Input Impedance:	25 kohms
Speaker Connectors:	4mm ∅ _banana plugs, spades connectors or naked wire
Trigger:	12V DC switching voltage, 2-pole co-axial ∅ _2,5mm co-axial jack
Outboard Power Supply:	20V/3A DC, suitable for your country's mains supply
Dimensions W x H xD:	103 x 36 x 118 (136) mm
Weight:	385 g without power supply