how much can they take

millertyms · 17th October 2009, 05:07 PM

recently acquired a pair of sansui sp x7 speakers in excellent condition. I'm driving them with a nad 3140 preamp and nad 2140 amp in bridged mode with a denon avr-95 receiver's preouts. Geuss my question is can these take this kind of power without destroying the speakers? Seem to sound good and clean but i am nervous about blowing them so i haven't hammered on them real hard yet.Any suggestions and/or advice would be greatly appreciated!

Glowbug · 17th October 2009, 07:50 PM

Just listen carefully; if you hear any signs of mechanical stress, back it off.

millertyms · 18th October 2009, 03:55 PM

my only problem with that is they dont seem stressed at all. I,m used to how cerwin vega,s sound just before the flames!As i currently own 4 sets of vegas and have owned 9 sets totall.these sansui,s just seem to take and ask 4 more.Are these even really that good a speaker or am i comparing them unfairly with the dead sounding vegas that i,m learning to dislike alot.I really don,t want to ruin these speakers cause of a hard lesson or cause i wouldn,t listen to some advice as these same amps have sent several loudspeakers of todays caliber to the bone yard. thank you for your time and insight on music and not noise.

picowallspeaker · 18th October 2009, 04:33 PM

Hello. Probably you have read the power rating on the plate , which I presume is very low . Don't worry ,be happy ! You'll stress less your ears . BTW You can take a look at the inside , carefully , be careful with those screwdrivers near the cones , and if you want a 2-5 % improvement in sound quality , change the capacitors to new polypropilene types .

millertyms · 18th October 2009, 07:22 PM

where can get them at and do i just get the same value as the old ones?i've also heard the caps and coils in a crossover have a shelf life.Is there any truth to that?The plates on the back say 200 watt

Glowbug · 24th October 2009, 12:51 AM

Partsexpress.com and Madisound.com would be two places I'd look for Xover components, among many others

millertyms · 24th October 2009, 01:46 AM

thank you for the advice and the patience as i am still learning.

millertyms · 29th October 2009, 12:54 PM

well figured out the highs and mids can't take a sansui 9090db @ 3/4ths volume! anyone know of good replacement speakers for these sp-x7's?

picowallspeaker · 29th October 2009, 01:54 PM

The only information I've gathered from the web is this (from audiokarma):

"The Sansui SP-X7 Speakers were manufactured from 1978 - 1980
I have a set in near perfect condition and I love them (owned them since new in 1978). However, they are more of a rock / hard rock speaker than jazz / blues. Bottom end is lacking A LOT compared to my Original Advents, but top end screams. I always use this example: OZZY on the SANSUI; STEELY DAN on the ADVENTS."

So ,there you are: power doesn't come with quality , and viceversa.
Bye

millertyms · 30th October 2009, 01:02 AM

I also agree with everything you mentioned about these speakers.I bought these for $50.00 and they also were in near perfect shape.I'm actually not real positive that they are blown since all the highs and mids in both speakers don't work now no matter where you set the switch.I'm hoping not since these had beautiful highs prior to their demise.Oh and i was listening to metallica one with the bass on the amp at 0 and treble at 3/4 with no distortion or popping.Everything simply just stopped working except the woofer's.Any suggestions would greatly be appreciated.

17th October 2009, 05:07 PM	#1
millertyms diyAudio Member Join Date: Jul 2009 Location: council bluffs	how much can they take recently acquired a pair of sansui sp x7 speakers in excellent condition. I'm driving them with a nad 3140 preamp and nad 2140 amp in bridged mode with a denon avr-95 receiver's preouts. Geuss my question is can these take this kind of power without destroying the speakers? Seem to sound good and clean but i am nervous about blowing them so i haven't hammered on them real hard yet.Any suggestions and/or advice would be greatly appreciated!

17th October 2009, 07:50 PM	#2
Glowbug diyAudio Member Join Date: Feb 2006 Location: Hillsborough, NC/McLean, VA	Just listen carefully; if you hear any signs of mechanical stress, back it off. __________________ Jim J.

24th October 2009, 12:51 AM	#6
Glowbug diyAudio Member Join Date: Feb 2006 Location: Hillsborough, NC/McLean, VA	Partsexpress.com and Madisound.com would be two places I'd look for Xover components, among many others __________________ Jim J.

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18th October 2009, 03:55 PM	#3
millertyms diyAudio Member Join Date: Jul 2009 Location: council bluffs	my only problem with that is they dont seem stressed at all. I,m used to how cerwin vega,s sound just before the flames!As i currently own 4 sets of vegas and have owned 9 sets totall.these sansui,s just seem to take and ask 4 more.Are these even really that good a speaker or am i comparing them unfairly with the dead sounding vegas that i,m learning to dislike alot.I really don,t want to ruin these speakers cause of a hard lesson or cause i wouldn,t listen to some advice as these same amps have sent several loudspeakers of todays caliber to the bone yard. thank you for your time and insight on music and not noise.

18th October 2009, 04:33 PM	#4
picowallspeaker diyAudio Member Join Date: Apr 2007	Hello. Probably you have read the power rating on the plate , which I presume is very low . Don't worry ,be happy ! You'll stress less your ears . BTW You can take a look at the inside , carefully , be careful with those screwdrivers near the cones , and if you want a 2-5 % improvement in sound quality , change the capacitors to new polypropilene types .

18th October 2009, 07:22 PM	#5
millertyms diyAudio Member Join Date: Jul 2009 Location: council bluffs	where can get them at and do i just get the same value as the old ones?i've also heard the caps and coils in a crossover have a shelf life.Is there any truth to that?The plates on the back say 200 watt

24th October 2009, 01:46 AM	#7
millertyms diyAudio Member Join Date: Jul 2009 Location: council bluffs	thank you for the advice and the patience as i am still learning.

29th October 2009, 12:54 PM	#8
millertyms diyAudio Member Join Date: Jul 2009 Location: council bluffs	well figured out the highs and mids can't take a sansui 9090db @ 3/4ths volume! anyone know of good replacement speakers for these sp-x7's?

29th October 2009, 01:54 PM	#9
picowallspeaker diyAudio Member Join Date: Apr 2007	The only information I've gathered from the web is this (from audiokarma): "The Sansui SP-X7 Speakers were manufactured from 1978 - 1980 I have a set in near perfect condition and I love them (owned them since new in 1978). However, they are more of a rock / hard rock speaker than jazz / blues. Bottom end is lacking A LOT compared to my Original Advents, but top end screams. I always use this example: OZZY on the SANSUI; STEELY DAN on the ADVENTS." So ,there you are: power doesn't come with quality , and viceversa. Bye

30th October 2009, 01:02 AM	#10
millertyms diyAudio Member Join Date: Jul 2009 Location: council bluffs	I also agree with everything you mentioned about these speakers.I bought these for $50.00 and they also were in near perfect shape.I'm actually not real positive that they are blown since all the highs and mids in both speakers don't work now no matter where you set the switch.I'm hoping not since these had beautiful highs prior to their demise.Oh and i was listening to metallica one with the bass on the amp at 0 and treble at 3/4 with no distortion or popping.Everything simply just stopped working except the woofer's.Any suggestions would greatly be appreciated.

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