This is quite simple.
What is needed:
-Better speakers, typical 6" models with better bass (I used GF-8686 speakers)
-2 capacitors, anything from 220-500nF
-Soldering skills
I am not sure about the original speakers. Mine are cosmetically in really good condition but wont produce about anything under 100Hz. I tried them on my GF-575 and got only high "resonant" basses, really lacking any punch. So I would suggest getting something better. I think the woofers from a Hitachi 3D80 could be kinda crunching.
Second step is to replace two capacitors on the tone/balance/volume control board on the left upper corner. The originals have value of about 150nF. I tried to replace them with 220nF but I didn't notice much difference. Then I added a second pair of 220nF caps, parallel. So it would be 440nF.
Here is a pic from the board, capacitors C15 and C18, the other caps are soldered under the pcb.
And here is a meh pic of it with the 8686 speakers.
Its damn loud, but the trebles start itching on higher volumes. Replacing the tweeters would probably make this sound really sweet. Original speakers are from Foster.
What is needed:
-Better speakers, typical 6" models with better bass (I used GF-8686 speakers)
-2 capacitors, anything from 220-500nF
-Soldering skills
I am not sure about the original speakers. Mine are cosmetically in really good condition but wont produce about anything under 100Hz. I tried them on my GF-575 and got only high "resonant" basses, really lacking any punch. So I would suggest getting something better. I think the woofers from a Hitachi 3D80 could be kinda crunching.
Second step is to replace two capacitors on the tone/balance/volume control board on the left upper corner. The originals have value of about 150nF. I tried to replace them with 220nF but I didn't notice much difference. Then I added a second pair of 220nF caps, parallel. So it would be 440nF.
Here is a pic from the board, capacitors C15 and C18, the other caps are soldered under the pcb.
And here is a meh pic of it with the 8686 speakers.
Its damn loud, but the trebles start itching on higher volumes. Replacing the tweeters would probably make this sound really sweet. Original speakers are from Foster.