This AMPLIFIER panel fits inside the 25-pound rear-ported subwoofer for Klipsch’s iFi 2.1 200 W Speaker System.

It has five new, low impedance, upgraded quality, Nichicon (Japanese) filter capacitors for the power supply to address a common weakness. (The original capacitors degrade after this many years. One example of the top of a failed, bulging capacitor is shown in a photo.)

The original iFi system has a single, 6 ohm, 8” 100 watt subwoofer speaker. The system originally also drives two 8 ohm 3” RSX-3 satellite speakers. The satellite section is rated to drive a minimum 4 ohms to the mid and high audio frequency speakers.

The efficient amplifier draws 15 watts at idle, and consumes under 50 watts when producing over 100 dB of sound.

Core Return Refund Options:

The buyer may return an old iFi panel for a core return refund. Option 1) The buyer covers the return shipping cost for the core, and the refund is $33. (No core fee is charged. Rather, returning an old iFi panel will result in a $30 refund to the original purchase amount paid.

Option 2) For those in the lower 48 states, a Fed Ex Ground return label will be provided as an option, enabling a $10 core refund. The packaging may be reused and the box can be dropped off at a Fed Ex Office. (The Fed Ex label costs me about $20 to use, so the net core refund is $10 [$30 - $20 = $10].