My various mods for my GF-777Z, displayed in photos:
This is a work in progress & will be incomplete, at various points in progression.
This is the finished woofer replacement as viewed from the rear of the interior. The outer woofers have large magnets that actually dwarf the basket it's attached to. With 91db 1W/1M, you would hope so. If you look closely, you can see the transformer wedged to the side of the box between the to outer drivers(woofer/tweeter) The trick is you can't fit these in the GF without major surgery & relocation of the transformer. I'll talk more about that later.
As you can tell by the magnet size & quality of the build, these Subs & Mid-Bass drivers are not f$@%ing around. the Black center mounted woofers are 4-OHM subwoofers with an FS 0f 38Hz in 0.16 cubic foot enclosure. They really pound. The outers are 2 ESS Center channel Woofers that are perfect for mid-bass & low-Mid output & 91db - 1w/1m.
Here's a shot of the car audio cross-overs I bought to filter the high/lows. The old wiring overlapped the outer woofers with the tweeters & used a simple Capacitor crossover for the tweeters. This is why the treble was muddy. These are car audio crossovers & the cross-point is 3K @ 4-OHMS for woofer & tweeter. PERFECT!!!
Now, I have to find some tweeters that will work with the horn apertures of the case. I was lucky to have these tiny little speakers I bought on eBay a couple of years ago. They're poop but the Infinity car tweeters are 4-OHM & a physical match to the old cone drivers.
Here's the old & new tweeter for comparison. Notice the much larger magnet & the cone is made of waterproof polymers & they sound much better too. I had to line them up & drill holes so they would mount properly.
If you look at the next 2 photos, you can see the original tweeter & the new tweeter loaded into the plastic lens of the horn. Notice how the dome of the new tweeter matches the aperture more closely than the original. I had enormous luck that the shitty speakers in my basement would be such a great donor for my tweeter replacements.
This photo shows the new tweeter mounted to the horn.
The transformer was removed & the plastic bracket of the case was trimmed to allow the woofer to fit. The huge magnet on the back was interfering with the original placement of the transformer. Now, it's time to find another spot for it.
This is a work in progress & will be incomplete, at various points in progression.
This is the finished woofer replacement as viewed from the rear of the interior. The outer woofers have large magnets that actually dwarf the basket it's attached to. With 91db 1W/1M, you would hope so. If you look closely, you can see the transformer wedged to the side of the box between the to outer drivers(woofer/tweeter) The trick is you can't fit these in the GF without major surgery & relocation of the transformer. I'll talk more about that later.
As you can tell by the magnet size & quality of the build, these Subs & Mid-Bass drivers are not f$@%ing around. the Black center mounted woofers are 4-OHM subwoofers with an FS 0f 38Hz in 0.16 cubic foot enclosure. They really pound. The outers are 2 ESS Center channel Woofers that are perfect for mid-bass & low-Mid output & 91db - 1w/1m.
Here's a shot of the car audio cross-overs I bought to filter the high/lows. The old wiring overlapped the outer woofers with the tweeters & used a simple Capacitor crossover for the tweeters. This is why the treble was muddy. These are car audio crossovers & the cross-point is 3K @ 4-OHMS for woofer & tweeter. PERFECT!!!
Now, I have to find some tweeters that will work with the horn apertures of the case. I was lucky to have these tiny little speakers I bought on eBay a couple of years ago. They're poop but the Infinity car tweeters are 4-OHM & a physical match to the old cone drivers.
Here's the old & new tweeter for comparison. Notice the much larger magnet & the cone is made of waterproof polymers & they sound much better too. I had to line them up & drill holes so they would mount properly.
If you look at the next 2 photos, you can see the original tweeter & the new tweeter loaded into the plastic lens of the horn. Notice how the dome of the new tweeter matches the aperture more closely than the original. I had enormous luck that the shitty speakers in my basement would be such a great donor for my tweeter replacements.
This photo shows the new tweeter mounted to the horn.
The transformer was removed & the plastic bracket of the case was trimmed to allow the woofer to fit. The huge magnet on the back was interfering with the original placement of the transformer. Now, it's time to find another spot for it.
imp: 
