What are the ways of upgrading your existing amplifier, other than playing with interconnects, speaker cables, platform isolation, and various other tweaks?
For DIY-ers, they would say - just change the components! That, to them, would bring more significant changes than playing with external factors. With the same amount of $$$ used on cables or other tweaks, DIY-ers can upgrade their amplifiers substantially, really substantially!
Nowadays, interconnects and power cords cost over USD$1K-5K easily. Imagine what can be done with the same amount of money! One can use all silver internal wiring, all Mundorf Silver/Gold capacitors, branded resistors, BlackGate capacitors, and any audiophile components one can possibly imagine. USD$5K can almost (very close) buy a pure silver output transformer already!
Changing capacitors, resistors, internal wiring, mechanical components and such are pretty common nowadays. Today, I'm going to introduce you another modifications that will bring substantial ROI to your amplifier:
- For amplifiers with only RC filter, add an amorphous choke!
- Produces lower voltage + current ripple, lesser heat (more efficient), lower partnering capacitance needed.
- Better micro-dynamics, micro-details, better filtration, lower noise.
- Natural slow start, protect your tube filament for longer life.
- Others are same as above points #1 and #2.
- Higher efficiency - lower voltage drop.
- Better AC reactance (higher load, better linearity!
For USD$109 for an amorphous double C core choke, high ROI tweaks never come cheaper than this. Nowadays, even exotic capacitors can cost many times of such price. Now, start using more chokes in your amplifier design!
Some people talking about of amorphous chokes:
- Available types: air-gapped choke (various sizes within core permit able values)
- Primary inductance: 8H
- Primary current: 300mA maximum
- Primary DCR: 70 Ohm
- Weight: 1.2KG per piece
- Size: 60mm x 75mm x 90mm
J&K Audio Design
3 MAY 2014