I just picked up a brand new in the box Rotel RB-1090 amp. Original owner purchased 2, one for backup, he never used it.
So, I have a pair of Martin Logan CLS IIZ Limited Edition speakers. I purchased them new in 2003. They were the last pair Martin Logan had available, nick of time right? I really have not used these speakers much over the years. In this time they have been sitting in a spare room with covers on them. Now I have the urge to pull them out once again and give a listen.
I wanted some opinions on how well some of you believe the Rotel RB-1090 will drive the CLS? Below is a link to the Stereophile measurements/review.
Something interesting stated in the Stereophile review:
"The RB-1090 also includes overcurrent protection, which operates when the load impedance drops below 2 ohms. Front-panel LEDs—one per channel—indicate the operation of the protection circuitry.
Although the RB-1090's formal specifications state the minimum combined load as 4 ohms, the manual refers to the amplifier's ability to "drive difficult loads with ease, including 2 ohm speakers." When queried about this apparent inconsistency, Mike Bartlett told me that the specifications refer to continuous testing into a fixed resistance; the RB-1090 meets the ETL/UL safety specs at 4 ohms. To produce an amplifier that can handle a 2-ohm resistive load at full continuous power would incur a major cost penalty; arguably, that amplifier would be no better at driving loudspeakers."
I believe the CLS dip to about 1.5ohms in the HF range. This is my worry.
Thanks!!
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Topic - Enough Current? - Lt Einhorn 07:21:30 01/18/15 (19)
- RE: Enough Current? - pictureguy 19:47:26 01/22/15 (2)
- RE: Enough Current? - Norman M 09:36:26 01/23/15 (1)
- RE: Enough Current? - Lt Einhorn 10:49:08 01/24/15 (0)
- RE: Enough Current? - neolith 13:57:34 01/19/15 (0)
- RE: Enough Current? - Satie 10:11:50 01/19/15 (3)
- RE: Enough Current? - Lt Einhorn 13:33:35 01/19/15 (0)
- Got them hooked up last night - Lt Einhorn 13:28:20 01/19/15 (1)
- RE: Got them hooked up last night - Satie 18:55:09 01/19/15 (0)
- Post this in the amp forum? - Lt Einhorn 18:00:37 01/18/15 (10)
- RE: Post this in the amp forum? - A.Wayne 21:44:46 01/18/15 (0)
- RE: Post this in the amp forum? - methylmarty 18:14:17 01/18/15 (8)
- Difficult load - neolith 15:26:44 01/19/15 (1)
- RE: Difficult load - methylmarty 20:05:10 01/21/15 (0)
- RE: Post this in the amp forum? - pictureguy 00:53:43 01/19/15 (5)
- RE: Post this in the amp forum? - Lt Einhorn 13:37:59 01/19/15 (4)
- RE: Post this in the amp forum? - pictureguy 08:23:50 01/20/15 (3)
- RE: Post this in the amp forum? - Lt Einhorn 06:05:07 01/21/15 (2)
- RE: Post this in the amp forum? - pictureguy 01:38:44 01/22/15 (1)
- RE: Post this in the amp forum? - Lt Einhorn 17:08:39 01/22/15 (0)