Archive for October, 2006

ProAc 2.5 Clone

Saturday, October 14th, 2006

After I sold my Tannoy Turnberry, I buy a pair of smaller speaker from China.  It was a ProAc 2.5 clone.  The price is wonderful and I use this speaker till today!  I have modified the internal film capacitors (3.4uF and 4.7uF) to Rifa film capacitors and it seems improve a bit in the mid and high frequency.

Aleph P

Friday, October 13th, 2006

This was made in year 2006.  This is a simple version as I only do the pre-amp part and there is no input selector, remote control and volume control.  I use a ladder type step volume control for each channel.  The resistors are just normal 1% metal film resistors.

The sound is very smooth for this pre-amp but it lack the extension in super high frequency.