SW1X Audio Design AMP III Trinity

AMP III is a 2 gain stage Power Amplifier coupled with a High Quality Pre-amplifier using our in house designed and in house made stepped attenuator volume control.

The Directly Heated 45 Triodes at the output are well known for their superbly refined & magical sound signature. They are driven by 6SJ7 valves to produce the classic energetic & emotionally involving sound.

AMP III is extremely refined sounding & musical and also in the same powerful sounding Integrated Amplifier, especially when combined with high sensitivity speakers

(99dB/W/1m sensitivty is recommended).

SW1X Audio Design™ AMP III Integrated Amplifier Features:

• Specially Selected and Harmonically Matched Component & Material Quality
• Single Ended, absolutely Zero NFB, Class A, Directly Heated Triode Valve Power Amplifier
• 2 x 6SJ7 Valve Driver/input Stage driving the 2 x 45 DHT Valves
• 2 Amplification Gain Stage Design
• Hybrid Point 2 Point Hardwiring Technique for the most consistent production results
• Internally wired exclusively with our SW1X Magnum, Genesis and Opus conductors
• SW1X Audio Design™ Custom Designed Copper wound Super HiB DC Core (50 Watt) Signal Output Transformers
• Quasi Mono, Directly Heated Double Diode Valve Rectified B+ Power Supply
• SW1X 24 Step Discrete Attentuator Volume Control
• Orient grain M6 EI core mains Transformers & Chokes
• Valve rectified Fixed Bias Power Supply

Tube Compliment: 2 x 6SJ7, 2 x 45, 1 x 5U4G, 1 x 5Y3

Optional Extras

• Fully Hardwired Tube Output Stage on the Bakelite Board
• Fine Silver wiring on the Input, Bakelite Board and Output
• Silver wound SW1X Audio Design™ Custom Designed Super HiB or Ultra HiB DC core Signal Output Transformers
• Black Gate VK capacitors in the B+ power supply
• AN 2W non-magnetic Niobium resistors on a Hardwired Bakelite Board
• Super HiB double C-Core mains transformers
• Inter-stage signal decoupling capacitors: 1. Copper Foil in Oil or 2. Silver Foil capacitors
• AN 2W silver, non-magnetic, Tantalum resistors

Specifications

Single Ended, Class A, Zero NFB, Output Power (W): 2, which sound at least like 15 Watts and the dynamic delivery feel like 150 W
when paired with with High Sensitivity Speakers (min 99dB/W/1m is recommended)
Input Sensitivity (V): 1
Input Impedance (Ohms): 47K or 100K
Output Impedance (Ohms): 4 & 8
Max Power Consumption (W): 200
Output Noise, Unweighted (mVrms): < 0.5
Dimensions (without tubes and feet): Height (mm) 250 x Width (mm) 440 x Depth (mm) 400
Weight (kg): 25

Note: Due to SW1X Audio Design’s ongoing research and development process, specifications are subject to change without notice

SW1X Audio Design® Range of Integrated Amplifiers
All of our Integrated Amplifiers are Pure Class A Valve Amplification with Zero NFB and most of them are Single Ended, producing therefore super Quality 2-8 Watts of power, which sound like 20-80 Watts when paired with with High Sensitivity Speakers (min 96dB/W/1m is recommended), where damping and dynamic delivery feels like 200-800 W

Being Valve amplifiers operated in Pure Class A, Single Ended mode without any kind of feedback, the circuit design is as elegantly simple as it can get.

Therefore, the quality of amplification is almost entirely dependent on the factor of Quality of Materials & Componets employed in the circuit design.

All our Integrated Amplifiers are offered in 4 versions:

• STD, all Copper wound, orient grain M6 EI Core OPTs
• Special, all Copper wound Super HiB DC Core OPTs
• Classic, Copper/Silver Windings, Super HiB DC Core OPTs
• Signature, Silver/Silver Windings, Super HiB DC Core OPTs

AMP III “Trintiy” Low Gain

• Tube compliment: 2 x 6J5 or 6SJ7 Driver, 2 x 45 DHT, 1 x 5R4G DHD Rectifier
• Copper wound, orient grain M6 EI Core or Super HiB DC Core (50 Watt) Signal Output Transformers
• Power Output about 2W depending on the tube and bias

AMP III “Trintiy” High Gain

• Tube compliment: 2 x 6SN7, 2 x 45 DHT, 1 x 5R4G DHD Rectifier
• Copper wound, orient grain M6 EI Core or Super HiB DC Core (50 Watt) Signal Output Transformers
• Power Output about 2W depending on the tube and bias