Archive for the ‘Speaker’ Category

ProAc speaker repair

Friday, October 14th, 2016

You can see from the photo the tweeter has damaged foam but it does not affect the function!  The the bass unit, the coil is open circuit and all 4 units (brought two more spare) are due to the corroded connection at the flex wire to the paper cone.  Thus this is not internal open circuit and thus I try to reconnect them using a wire as shown.  After repair, the driver can be used without any issue!

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.

Tannoy Turnberry SE

Friday, October 14th, 2005

This is the biggest speaker I ever own so far.  Due to its size and small room in Hong Kong, I have to gave it up after 3 years use in 2006.  I use 300B to drive it but with its 90dbslp sensitivity, it is still unable to drive it to satisfactory sound level and quality.  Later I build a Aleph 60 and it sound much better but the booming is still there due to small room effect.  So I have to gave it up and sold it for 10k HKD!

Dynaudio Contour 1.8 MKII

Monday, October 10th, 2005

This is a very nice speaker I brought in 1995.  I sod it out in 2005 and I am a bit regret to sell it!

Celestion SL6

Saturday, October 14th, 2000

Back in over 20 years, I own a pair of Celestion SL6 speaker.  It was a very difficult load speaker and not many power amplifier can drive it well.  I have Quad 405 at that time but this speaker is still hungry for power!  In the last few years, I use this speaker as my test speaker when I build my amplifiers.  This is the only picture that I have left for this speaker.

Even my pair of Celestion SL6 is gone, my brother still keep a pair of SL6si.