Worth repairing a Definitive Technology SuperCube 8000 sub?

[Eliut]

Hello guys. A friend gifted me a Definitive Technology SC8000 sub. When I connected it, the unit powered on but no sound. I guess the amp is blown. I contacted DT and they tell me that I can get a replacement amp for $308+SH. I have read so, so reviews for this sub and I just purchased a new SVS PB3000 for my main HT.

If I repair this DT sub it would be used in my office 5.1 setup or my bedroom.

This sub is discontinued, 11", 1500w. My thinking is that for $400 total I may not be able to purchase a new sub with similar specs so it may be worth repairing. Am I wrong?

 

[kini]

I'm still using the one I bought in 2012. IMO for its size it does really well, not so much for the price when new though.

The only sub at close to $400 that would be comparable would be the RSL SpeedWoofer II for $449 with shipping included.

The Speedwoofer 10S Subwoofer MKII - RSL Speakers

rslspeakers.com

The SC will have a little more overall output and I think is a little smaller. But, old versus new with warrant-

 

[everettT]

Hello guys. A friend gifted me a Definitive Technology SC8000 sub. When I connected it, the unit powered on but no sound. I guess the amp is blown. I contacted DT and they tell me that I can get a replacement amp for $308+SH. I have read so, so reviews for this sub and I just purchased a new SVS PB3000 for my main HT.

If I repair this DT sub it would be used in my office 5.1 setup or my bedroom.

This sub is discontinued, 11", 1500w. My thinking is that for $400 total I may not be able to purchase a new sub with similar specs so it may be worth repairing. Am I wrong?

What else did you do to determine the amp is dead? Did you set your speakers all to small in the AVR? Did you try a separate source plugged into the sub, like a phone or CD player? Honestly I wouldn't fix that sub as it isn't that great except for music. The wattage is irrelevant to the spec and the only reason it has so much power is to handle the EQ boost needed to lower F3.

 

[BoredSysAdmin]

here are SC8k measurements (at 1 meter)

Test Report: Definitive Technology StudioMonitor SM65 and SM45 Speakers & Supercube 8000 Subwoofer Page 3

Extended Test BenchFrequency responseSM65: 43 Hz to 20 kHz ±3.5 dBSM45: 46 Hz to 20 kHz ±4.7 dBSuperCube 8000: 32 to 116 Hz ±3 dBSensitivity (SPL at 1 meter/1 watt)SM65 85.3 dBSM45 82.8 dBImpedance (minimum/nominal)SM65 3.1/7 ohmsSM45 3.3/7 ohmsBass output, subwoofer (CEA-2010 standard)

www.soundandvision.com

here are RSL 10S mk2: (at 2 meters - add 9db to make it comparable to 1m)

RSL Speedwoofer 10S MKII Review: Improved Performance, Great Value!

The popular RSL Speedwoofer 10S received a redesign to take advantage of modern innovations in audio technology. The RSL Speedwoofer 10S MKII has been completely redesigned. To find out how, read on.

www.audioholics.com

Frequency	SC8000 (1m)	RSL 10S mk2 (added 9dB -> 1m)
20hz	102db	106db
25	107.7db	109db
31.5	108.6db	113.7db
40	117.2db	116.3db

Any questions?

 

[everettT]

here are SC8k measurements (at 1 meter)

Test Report: Definitive Technology StudioMonitor SM65 and SM45 Speakers & Supercube 8000 Subwoofer Page 3

Extended Test BenchFrequency responseSM65: 43 Hz to 20 kHz ±3.5 dBSM45: 46 Hz to 20 kHz ±4.7 dBSuperCube 8000: 32 to 116 Hz ±3 dBSensitivity (SPL at 1 meter/1 watt)SM65 85.3 dBSM45 82.8 dBImpedance (minimum/nominal)SM65 3.1/7 ohmsSM45 3.3/7 ohmsBass output, subwoofer (CEA-2010 standard)

www.soundandvision.com

here are RSL 10S mk2: (at 2 meters - add 9db to make it comparable to 1m)

RSL Speedwoofer 10S MKII Review: Improved Performance, Great Value!

The popular RSL Speedwoofer 10S received a redesign to take advantage of modern innovations in audio technology. The RSL Speedwoofer 10S MKII has been completely redesigned. To find out how, read on.

www.audioholics.com

Frequency	SC8000	RSL 10S mk2
20hz	102db	106db
25	107.7db	109db
31.5	108.6db	113.7db
40	117.2db	116.3db

Any questions?

The comments on the SC8000 should be enough to deter repair. The 40 to 60hz range sounds like a disaster audibly.

 

[William Lemmerhirt]

I would not spend any on a SC myself. What is the intended use? If you’re looking to spend that quantity of money I’d probably put it towards an RSL speedwoofer.
Edit: I see bedroom or office. Still wouldn’t fix the SC.

 

[Eliut]

OK, I am convinced. I'll save up for a new sub. I hope the garbage truck can carry this out. I am also disposing of my Polk PSW1000 subwoofer!

 

[William Lemmerhirt]

OK, I am convinced. I'll save up for a new sub. I hope the garbage truck can carry this out. I am also disposing of my Polk PSW1000 subwoofer!

Good choice(s)!!!!!

 

[cgwmd]

Hello guys. A friend gifted me a Definitive Technology SC8000 sub. When I connected it, the unit powered on but no sound. I guess the amp is blown. I contacted DT and they tell me that I can get a replacement amp for $308+SH. I have read so, so reviews for this sub and I just purchased a new SVS PB3000 for my main HT.

If I repair this DT sub it would be used in my office 5.1 setup or my bedroom.

This sub is discontinued, 11", 1500w. My thinking is that for $400 total I may not be able to purchase a new sub with similar specs so it may be worth repairing. Am I wrong?

The same thing happened to my subwoofer. I called Definitive Technology and ordered the replacement amplifier parts. I am pretty handy with electronics. The amplifier connections are all coded so that you cannot make a mistake in replacing all the cable connections. After sneaking my hands into the tiny opening in the back to do this everything put together fine. Now the subwoofer is just as great as what I purchase it originally and it's probably not going to be able to be replaced by anything close.