u/Ef_bobby

Greetings,

After starting down the rabbit hole of modifying a couple of existing center speaker enclosures. I’ve found a decent set of drivers I’m both happy with and seem to compliment the rest of the pieces in the HT System.

Unfortunately due to the limited space I’m very limited on premade enclosures I can choose from. For now what I’ve done is I’ve modified 2 premade enclosures to “behave” as 1 enclosure. I’m using 2, WTW 2-way enclosures and modified them into a WTW/WMW combination hybrid 3-way center speaker.

The 4 woofers are 5.25in, the tweeter is 1 inch and the midrange is 3 inches.

I have 3 inquiries about this in 3 different areas; one is open ended and the other 2 are more of a direct yes/no.

Then 1 question about driver selection.

General Construction:

Firstly, this is a 2 part question. What sort of building material should I target for the general construction of the box? I see many of the pre-made boxes use particle board type materials.

Is there any benefit to this or is it just done to cut cost?

The second part being Is there a particular thickness I should target?

Internal Insulation:

Would there be any benefit to trying a double-insulating method for inside the box?

More specifically sticking either 1/8in or 1/4in styrofoam to 5 of the 6 sides(minus the front side) and following up with the usual type of wadding afterwards or no?

Aesthetics:

I was curious if instead of painstakingly finishing the wood; if instead I could usr something like a vinyl type wrap could work?

Driver Selection:

Currently I am using 4 identical 5.25 inch medium mid bass woofers in a series-parallel configuration.

The 5.25’s in there seem to work best in the 200-600hz range but struggle in the sub 200hz area.

Would there be any benefit to swapping out 2 of the 4, 5.25’s that will target the lower end, maybe 60 or 80 plus to say like 2-300hz range or would that introduce more problems than benefits?

I remember reading that the lower frequencies aren’t as bad at noise cancellation/wave collisions as the higher ones are.

-With the assumption that I select a set of new 5.25’s that use the same impedance as the old ones but even if I don’t I can just change the wiring configuration to suit the end result.

-Additionally with the assumption that the 2 new drivers I select will have the same sensitivity as the old ones as well. This area unlike the other one will have very little room for compromise. I think my limits will be +- 2db.

Many Thanks in Advance.

I came across this info on the flywheel and the main question I have is in relation to using lighter parts?

For example I already have an aluminum ud crank damper installed and plan to get a fidanza aluminum flywheel.

With the possibility of cutting so much weight, is match balancing going to be as big of a deal or should I be ok with the “washer method” of balancing the new flywheel to match the old one?

Many thanks.

Greetings,

I am in the final phase of selecting hardware for an upcoming upgrade.

I’ve considered several different variables the biggest of which is price since at present, on avg one can find a 9060xt for the same price if not slightly cheaper than a 7700xt.

Performance wise there seems to be trade offs between the 2 with the 7700xt being better at raw compute and the 9060xt being better utilizing some of the newer game graphics technologies.

According to ai the 7700xt is roughly 5% better in most benchmarks.

If it were limited to just GPU vs GPU then I’d get the 9060xt; however there is 1 caveat to consider that may fundamentally alter the performance gap between the 2 GPU’s.

Due to projected costs I will be going with an AM4 platform over the AM5 platform.

The X570 Chipset is a PCIE 4.0 chipset which the 7700XT is optimized to run with but the 9060XT is optimized to run on a PCIE 5.0 chipset which would change how these 2 cards would run and be compared to each other.

The more accurate comparison then becomes:

-AMD RX 7700XT PCIE 4.0 16x projected and PCIE 4.0 16x actual VS -AMD RX 9060XT PCIE 5.0 16x projected and PCIE 4.0 16x actual which is effectively the same thing as running the GPU in PCIE 5.0 8x.

According to AI that despite the card running at an effective half PCIE Strength that there would be no bottlenecks affecting the performance comparison.

Do you all agree with the AI performance assessment?

Lastly, the projected system will be using the following:

CPU: one of the following: AMD 5700x3d, AMD 5800xd3, AMD 5950x, 5900xt, 5900x, 5800x, 5800xt and AMD 5700x.

RAM: 2x8gb or 2x16gb ddr4

Motherboard: AMD x570 chipset

Thanks in advance.