Archive | September, 2015

What’s in a Portaphile, Part III (Or what’s not….)

No capacitors in the signal path.   The bottom line is that putting capacitors in the signal changes the sound.  I don’t care how good or expensive the capacitor is, putting one in the signal path will alter the frequency response in some way.  Read up on it and you will commonly find terms such […]

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What’s in a Portaphile, Part II: 0.1% Metal Film SOIC Resistors

All Portaphile amplifiers are built using strictly Metal Film SOIC resistors inside the amplification circuitry that have a 0.1% tolerance. Resistors come in different tolerances such as 20%, 10%, 5%, 1% and 0.1%.    What the 0.1% tolerance means is that the resistor is rated by the manufacturer to vary only +/- 0.1% from it’s stated […]

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What’s in a Portaphile Amplifier? Part 1

I will begin a series of post highlighting some of the inner workings of our amplifiers.  First, let me introduce TKD, or TOKYO KO-ON DENPA COMPANY LIMITED  .  Here is an excerpt from the company’s website: “Tokyo Ko-on Denpa Co., Ltd. (hereinafter cited TKD) was established in 1944. Since then we have been manufacturing attenuators, faders, precision […]

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Post Away! Our sales depend on it!

We at Portaphile rely on our customer’s word of mouth to fuel our sales.  Please post and comment whenever possible about our products, whether posting a review at Portaphile.com or posting a review on one of the many audio forums online, please post your impressions wherever and whenever possible.  We rely heavily on customers spreading […]

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