is it straight ot run the sax 125.2 bridged @ 2 ohms?

[dennit469 10+ year member]

125 watts x2 @ 4 ohms

200 watts x2 @ 2 ohms

400 watts x1 @ 4 ohms bridged

these are all the specs i can find on it, i had one last summer and sold it, but now i want another one, it would be powering my soon to get new front stage ID xs65's (yes i think im gunna go with them again), so instead of plugging a 4 ohm load into each channel why not bridge it with the comp sets and and get the most i can out the amp...is that to much for it to handle? i had my xs's running off a 300/2 and was told constantly they could use more power...well heres my solution from a well known and High quality brand amplifier.

Click to read more...

 

[misfit138 5,000+ posts]

I don't know if it'll handle the load and I honestly see no benefit from trying...

 

[dennit469 10+ year member]

whats a good 200-300 rms per channel, 2 channel amp then? im stuck on memphis for SQ but dont know which one would be sufficient

 

[misfit138 5,000+ posts]

If you need power @ 2 ohms, The Crescendo 1000CF will do 250 x4. Bridged rating is 500 x2 @ 4.

It's $240 shipped and is built by zenon (same as Sundown's sax line if you didn't already know that). Crescendo Audio :: Amplifers :: 1000C4 4 Channel Amplfier

The Zed Kronos is also a beast (250 watts rms x2 @ 4 ohms): SSA Store - ZED Audio 2 channel Amplifier Full Range Class D

 

[Wingman0121 10+ year member]

Wow you need 300 watts RMS per channel just for a comp set? Are you sure your gain & crossover is set right because most comp sets can only take about 100 watts RMS per channel before the woofers start to complain.

btw when u bridge the amp it becomes mono so how are you going to get stereo sound out of it?

 

[misfit138 5,000+ posts]

Are you sure your gain & crossover is set right because most comp sets can only take about 100 watts RMS per channel before the woofers start to complain.

Not necessarily true. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[Wingman0121 10+ year member]

Not necessarily true. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

The amp I'm using right now is a Cadence SQA4100 that does 100 watts RMS x 4 into 4 ohms, with the crossover set to full range it can bottom out my two pairs of Pioneer Premier TS-C504 at 3/5 volume, with the crossover set ~70Hz I can crank it higher but when I tried to crank it to "concert level" loud I started to smell the coils, so they could of got beaten down with just 100 watts each. Granted those aren't Image Dynamics but the gap couldn't of been that much more.

Maybe I should sell my USA-2000x to the OP to run some comp sets hahaha....

 

[misfit138 5,000+ posts]

The amp I'm using right now is a Cadence SQA4100 that does 100 watts RMS x 4 into 4 ohms, with the crossover set to full range it can bottom out my two pairs of Pioneer Premier TS-C504 at 3/5 volume, with the crossover set ~70Hz I can crank it higher but when I tried to crank it to "concert level" loud I started to smell the coils, so they could of got beaten down with just 100 watts each. Granted those aren't Image Dynamics but the gap couldn't of been that much more.
Maybe I should sell my USA-2000x to the OP to run some comp sets hahaha....

Doesn't matter, man. Your experience with a given midbass driver doesn't reflect the performance of nearly all midbass drivers. Many people feed their front stage 250+ watts per side with no trouble. In most cases, if there is a weak link, it's the passive crossover.

 

[misfit138 5,000+ posts]

On second thought, I guess the Crescendo recommendation is kinda dumb. Your current amp will do 200+ per channel @ 2 ohms too. My bad, man. Don't know what I was thinking...

 

[dennit469 10+ year member]

Wow you need 300 watts RMS per channel just for a comp set? Are you sure your gain & crossover is set right because most comp sets can only take about 100 watts RMS per channel before the woofers start to complain.
btw when u bridge the amp it becomes mono so how are you going to get stereo sound out of it?

i completely disagree in my scenario, i was pushing 150 to the xs comp set before, and i knew they had more in them and was also told on here they like more power than that. so when i figured out my mids were screwed due to water damage i called image dynamics, talk to the tech named Eric*, anyway we talked about car audio for a while and i asked him how much is really safe to run on this comp set and this is the rundown he gave me.

i dont know if this is for all image dynamics speakers but it is for the xs set at least.

The way they rate what there speakers can handle RMS wise is with a "pink noise" played strenuously untill the voice coils start heating up extensively or burn up altogether. Which to my understanding is a frequency(s) that will put the most strain on the speaker, much more strain than any "music" the speaker will ever play. And for the XS set they rate it at 150w RMS because the speaker slightly starts to get hot in this 4 hour time frame. And his quotes exactly "these speakers are way under rated and can take 300w RMS safely assuming you arent playing at max volume for a couple hours straight, which isnt very likely"- and thats coming from one of the main engineers/designers of the speaker......so this is why i want 300 watts on each side my man. i want to get something out of the speakers i haven't been able to do and are very capable of.