Image 1 — Would appreciate any help with a Mirage OM-5 (2000/2001) Tower Speaker set - Subwoofers shut off after about 30 minutes of use (both units).
Image 2 — Would appreciate any help with a Mirage OM-5 (2000/2001) Tower Speaker set - Subwoofers shut off after about 30 minutes of use (both units).
Image 3 — Would appreciate any help with a Mirage OM-5 (2000/2001) Tower Speaker set - Subwoofers shut off after about 30 minutes of use (both units).
Image 4 — Would appreciate any help with a Mirage OM-5 (2000/2001) Tower Speaker set - Subwoofers shut off after about 30 minutes of use (both units).
Image 5 — Would appreciate any help with a Mirage OM-5 (2000/2001) Tower Speaker set - Subwoofers shut off after about 30 minutes of use (both units).
Image 6 — Would appreciate any help with a Mirage OM-5 (2000/2001) Tower Speaker set - Subwoofers shut off after about 30 minutes of use (both units).
Image 7 — Would appreciate any help with a Mirage OM-5 (2000/2001) Tower Speaker set - Subwoofers shut off after about 30 minutes of use (both units).
Image 8 — Would appreciate any help with a Mirage OM-5 (2000/2001) Tower Speaker set - Subwoofers shut off after about 30 minutes of use (both units).
Image 9 — Would appreciate any help with a Mirage OM-5 (2000/2001) Tower Speaker set - Subwoofers shut off after about 30 minutes of use (both units).

Would appreciate any help with a Mirage OM-5 (2000/2001) Tower Speaker set - Subwoofers shut off after about 30 minutes of use (both units).

https://www.soundstagenetwork.com/revequip/mirage_om5.htm?__cf_chl_f_tk=NCF2Ob4N5NeUITJsXd8I2d76Diz970SzF4lLblF5_Lg-1782955785-1.0.1.1-DTOGLz3qgq31Rn_MkFMdTYDt04mo_jYQKQj89ocChmM

Found a pair of Mirage OM-5s in the dumpster with the boards also removed but nearby. Basically, everything is there with the exception of one of the subwoofer mesh covers.

Initial testing:
I hooked both of them up, sent some sound through them via a good AVR. They sounded great... until the light on the front of each went red after about 30 minutes. Once this happens, perhaps it's in standby mode, but I cannot get the subwoofers to work again like this.

I do a total power off on the tower, wait a few seconds, and even then, I usually have to close whatever tab was playing music, power off the AVR, then start turning stuff on from the tower to the AV, it's kind of picky. The mids/tweeters still go, but the subs (2 on each tower) are totally dead with a red light. It will green light every time at the start but then shut off. This happens on both towers.

Fixing Attempts:

My first instinct was to recap the entire amp board and even the tweeter board for good measure; these are 25-year-old caps, so maybe they were dying. No dice, still fails after 30 minutes. I triple-checked all the positive/negative directions. They are the correct cap types as well. Cap job was fine, even on the tweeter board (brown board in the pictures).

I thought it was overheating after this. I tried blowing a ton of air directly on the board with a fan (had the board partially out with the screws loosened so air could flow across the board and the caps). That did not work; same problem. I also tried crimping new wire and attaching it to the speaker drivers themselves with a more secure connection, thinking maybe heat was causing some kind of problem with the fit. Still has that 30-minute timeout period, no matter what I do.

I did some measuring with a multimeter, but I can't make heads or tails of much. If anyone can tell me the continuity checks I need. I can provide more pics of the chips if need be.

I checked on the 4 MOSFETs, and apparently they come out with a good reading.

I also replaced the IR2111, which are chips that are not soldered in. Still no changes.

Where I am now:

Really like the speakers when they work, but god damn, buying new amp boards, if that is even possible since these have 3 wires, some kind of extra connector (2-pin top right) is going to cost a ton with money I do not have right now. I blew close to 100 bucks on parts (some I didn't even need) trying to fix this thing. Still has the same problem. Works for 30 minutes, green light turns red, subwoofers stop moving.

AVR is a Denon x4700h. Powers my Klipsch passive speakers just fine.

u/jakerfv — 4 days ago

Borderlands 1 + 2 - From Hatred to Guilty Pleasure

Being in High School when Borderlands 2 came out, the game was the talk of many. It made the rounds during video game school discussions with every other big-name FPS at the time. Halo, Bioshock, Far Cry (3), and of course, Call of Duty (MW2 and Black Ops 1) were the most common. But Borderlands kind of simmered in the background as a fun Xbox Live or PlayStation co-op game. "Fun with friends", you'd hear on any review site or defender of the games, seemingly. Well, anything is more fun with friends, and unfortunately, this is what put me off really giving the games a chance. In reality, Borderlands 1 and 2 are extremely thin on co-op play content, though, in fairness to 1, 2 was heavily pushed on its co-op angle. These games are fun but extremely flawed FPS action RPGs, which is what they should have been marketed as in an ideal world. If you like Diablo 2, you'll like a lot of what Borderlands does, and you'll also hate its regressions compared to a PC ARPG from the late 90s.

For starters, I'd like to talk about Borderlands 1, which always had more appeal to me since I picked it up around the time I got big into PC gaming in the early 2010s during my first Steam sale (IIRC). BL1 has limited enemy variety, limited weaponry, some terrible pacing, but there is an immense charm in walking around a very quiet, empty wasteland with nothing but the music strumming along in the background and the occasional brief dialogue/cutscene to break up the silence. Aside from the shooting and vehicle additions, Fallout New Vegas is just a superior title despite differing in genre focus. It's arguably a better ARPG in general since you not only get an interesting variety of weapons but also equipment. Though the goofiness of Borderlands adds some flair, it's still a highly repetitive experience with some sunk cost. Oh, and the ending feels anti-climactic. Kind of a neat subversion of expectations otherwise, but still anti-climactic.

Borderlands 2 improves every aspect, but the repetition is still the biggest problem, and it's why I'm writing this. The co-op aspects are stronger than I had previously judged it for, but there are still big limitations. Every mainstream RPG just does not like letting the player break the game or have agency. You get an item that gives you points in a skill tree several levels down, as long as you have the item equipped? Awesome! Except those skill points don't work until you have at least one talent point in the skill, which could be in an entirely different tree, and basically require 5-10 levels. So you can't even skip old talents either in favor of the more interesting ones, because the game wants you to play the grind. The endless, boring, fetch quest grind. Bullet spongey enemies, leveling taking way too long, boring skill tree points (+3% to weapon damage, you've seen this shit a ton). Despite being an ACTION RPG, it's got such boring RPG talents for your combat. One thing that could've really fixed it was gear drops, not just weapons. More damage, more cool abilities and passives, more stuff in general instead of just guns. Give me armor that provides this stuff on top of my guns. Because the guns will get stale. Get a legendary gun drop? Great, except we're playing an FPS, so that means you'll be begging for a different gun after 2 hours, but since the enemies are sponges, you'll want something better than what you have, which will be another 2 hours, at minimum.

The progression is probably the worst aspect of these games. The level grinding takes ages, and it's such a drag. A lot of these grindy systems in Borderlands have manifested their way into other games in the form of these Console MMO FPS titles like Destiny, and they are just so fucking bad compared to an actual MMO. In World of Warcraft Vanilla, I can play 20 hours, get to level 20 as a warlockk (mods, please don't delete posts for having generic names like "warloc*" in the entry, its a class, not a new game, lol), have 3 minions with their own situational utility, have done all kinds of cool quests with lore, gotten interesting gear which might include class gear too, done 3 or 4 challenging dungeons with friends, probably 6-7 locations with unique biomes. In the co-op aspect, I can create healthstones, soulstones, and have my voidwalker off-tank certain mob pulls in groups. I have so much damn utility in that class, and solo-leveling is still rewarding and fun, not to mention the entire MMO aspect. Auction houses, professions, and trading. World pvp and battlegrounds. Social interaction and Guilds.

In a game like Borderlands 2, 15 hours gets me to level 20, but I'm so much worse off. I have a few passives for my Siren that increase gun damage. I have 1 active ability with a few unique passives, 1 grenade I can use at a time, and a handful of guns I can switch between. Different biomes, but they all feel the same; the quests are just as repetitive as they were 10 hours ago outside the main storyline, and there's no incentive to play with a group. The co-op? I can revive people or slightly reduce their active ability cooldown. That's it. The co-op marketing + pacing feels like a ploy to keep you in the game as long as possible to sell more copies. "You can get 100 hours out of it, it's got millions of guns, it's fun with friends, buy 3 more copies! Buy the DLC to get even more out of it!"

It's infuriating because I like the games on some fundamental level. The shooting is generally solid. I think it's a problem that this is the only ARPG FPS that's worth playing. If they could just make this game but with more gear (not just guns) and an end-game with team coordination, that would be so goddamn sick. Instead, it's a pretty fun but highly repetitive ARPG shooter that I can't stomach for more than 2 hours at a time. I will say, BL2, is very fun when it wants to be; the main quest missions are generally cool, and the bosses are great. But you have to grind on boring fetch quests for a bit to have "fun".

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u/jakerfv — 14 days ago