Rebuilding 80s Technics 160W RMS 3 way speakers with 15" Bass speakers. Trying car speakers for mid range just because they were at hand.
TLDNR: An incredible improvement. Still need to cut bigger holes and mount properly. What can go wrong?
My amp is a beefy 100 Watt Onkyo A-RV401.
The Speakers are Technics SB-K400. 160W, 8 Ohm, Crossover: 2000 Hz, 6000 Hz.
Replacing the Bass Speaker.
I just replaced the original 8 Ohm 15 inch bass speaker with an 8 Ohm GRS replacement. https://www.amazon.com/dp/B00454W3BG
The GRS is twice the weight and twice the inductance as the original. No other listed speakers came close to those numbers if they are even relevant. The magnets and voice coil is massive compared to the original.
It still seemed like a random choice. The new bass speaker sounds great and seems to carry more of the mid range than the original. The overall mid range of this speaker in the original configuration is still very weak.
Replacing the Mid Range.
The original mid range speaker is marked 0.8 Watt, 4 Ohms. Not even a whole Watt.
I was hoping to find a simple drop in replacement upgrade. I had no idea where to start. I have 4 Sony XS-R1645 car speakers. 50W RMS, Peak 270W, 4 Ohm. I decided to try them out. I am leaving the original 20W 8 Ohm tweeter in place.
Just hanging it in place with a wood screw to try it out, it sounds amazing. Tomorrow I enlarge the midrange hole and mount everything up proper?
Is there anything that can go wrong with using the car speaker for a mid range?
Will the crossover unit hold up?