Rotel & energy?

[june]

hello all,

will a rotel rmb-1075 run a pair of energy c-300?

[srb]

The Energy C-300 is an 89dB, 8ohm nominal, 4ohm minimum speaker. Should be a very easy load for the RMB-1075.

Steve

[june]

thanks srb,

how about the c-500?

http://www.energy-speakers.com/na-en/products/c-500-specifications/

[srb]

how about the c-500?
http://www.energy-speakers.com/na-en...pecifications/

With the extra woofer, the C-500 is even more efficient at 91dB, so it is even a slightly easier load than the C-300.

There is a little more to it beyond impedance and sensitivity specifications, as the size of of capacitors, inductors and phase angles in the crossover circuit can make some speakers of similar specifications more "power hungry" than others, but in general provides a good rule-of-thumb comparison, particularly if the minimum impedance is also specified.

The RMB-1075 has no problem driving impedances down to 4ohms, and with medium efficiency speakers like these, in the 89dB - 91dB range, it shouldn't break too much of a sweat.

Steve

[june]

Steve,

last thing, im getting a deal on rc-30: http://www.energy-speakers.com/na-en...c-30-overview/

if the rmb-1075 can handle the rc-30 it's a done deal.

[srb]

Steve,

last thing, im getting a deal on rc-30: http://www.energy-speakers.com/na-en...c-30-overview/

if the rmb-1075 can handle the rc-30 it's a done deal.

The RC-30 specs are the same as the C-300: 89dB, 8ohm nominal, 4ohm minimum.

Done deal.

Steve

[gp4Jesus]

With the extra woofer, the C-500 is even more efficient at 91dB, so it is even a slightly easier load than the C-300.

There is a little more to it beyond impedance and sensitivity specifications, as the size of of capacitors, inductors and phase angles in the crossover circuit can make some speakers of similar specifications more "power hungry" than others, but in general provides a good rule-of-thumb comparison, particularly if the minimum impedance is also specified.

The RMB-1075 has no problem driving impedances down to 4ohms, and with medium efficiency speakers like these, in the 89dB - 91dB range, it shouldn't break too much of a sweat.

Steve

I agree w/steve on the efficiency argument. You DO need an increase of 3dB to notice a difference in percieved loudness. Every thing else being equal, that demands double the power to produce.

I think what Steve means in his 2nd paragraph, more drivers and/or more XO components can make for a more complex load.

For sure, more drivers, especially woofers, will mean more back EMF-the drivers sending voltage TO the amp.

If XO component tolerances "line-up" just right, it will "ring" or resonate. Some amps handle these issues better than others. Rotel amps handle complex loads better than most, if not all, of their similar priced/rated* competition and some of their up-scale competition.
* power

cheers tony

[2ndRick]

I am a long time owner of some small towers from Energy's pre-Veritas flagship line, the 22 series. I sold Rotel as a dealer through most of the 90s, and found their amps to have very few issues even with tough loads like Magnepans.

Energy speakers should be an easy load for any but the most basic rack-system type receivers. C-series is the former Connoisseur series, which are an excellent value.

Hopefully you took the advice of the previous posters and you are already enjoying these spakers on your Rotel rig.

[june]

2ndrick,

yes i did & in heaven. paradigm studio 100 v2 in main room (rsp 1068) & energy in the bedroom (rsp 1066). both using a rotel 1075 amp.