Originally Posted by HogPilot
I'll be driving my V's in stereo with a Pio Elite SC-05 full range with no sub. Do you guys think it should put out enough juice to drive them to reasonable output levels? I'm not looking to abuse them, but I also want to make sure that I don't damage them if they need more than the 140wpc that the Pio can pump. I know that they're rated at 100wpc minimum, but I haven't been able to find a recommended or max figure anywhere.
To piggyback what Champ04 said about impedance, of the larger speakers in the Signature Collection the ones that present the most difficult load are the SC-V's at a Nominal 4 ohms, and a Min/Max of 3/5.5. You can see the rest of the lineup in the attached thumbnails here: http://www.avsforum.com/avs-vb/showt...0#post18049880
I've had my share of pseudo-heart-attacks when trying out different receivers where out of nowhere the V's went silent and you'd have to sit there and wait to see if that receiver was ever going to recover from it's latest shut down! I expected that to happen on the cheaper receivers, but it also happened on a high end Denon AVR-5803; that's scary! And that receiver was rated at 170 watts into 8 ohms and 200 into 6, so I thought I might be on the safe side as long as I didn't push too hard. If I'm not mistaken, Pioneer rates their Elite receivers down to 6 ohms, but I'd still be cautious. When mine shut down, I was not
playing it that crazy levels! It was definitely an impedance problem.
Here's a list of power amps I've used on the V's and a brief summary of what I thought of them:
-Theta Digital Dreadnaught - For the money and the versatility, my absolute favorite amp (bar none!) to play on any of the Dunlavy models. From top to bottom, I love this amp. Originally between 6 and 7 thousand in the configuration I had mine, you can get them for between 2 and 3 grand now. Sound to die for! My highest recommendation.
-Parasound HCA-2205 ($3k) and HCA-2205A ($2.5)- Tight bass, overall very nice balanced sound. I've seen these go for between $800 and just over $1k. Excellent control, very smooth and extra channels.
-Adcom GFA-5800 and GFA-5802. I've had great success with the 5800 for many years running various Dunlavy models! John Dunlavy himself had an Adcom 5800 hooked up to a pair of SC-V's when I first went down to the factory for a listen back in '96 or so. He also had a Jeff Roland amp at several times the cost for comparison, but amazingly I actually liked the bass control on the Adcom better. (I'm a bass freak) Ironically the pre-amp he was using for both was also a Jeff Roland.
-Krell KSA-150 I borrowed my friends Krell for a week to run my Duntech Sovereign 2001's. Absolutely loved how it made the Dunlavy's sing but couldn't justify spending $5k for 150 watts at the time. A few years later, re-borrowed the same exact unit for a weekend to try out on the new SC-V's. Again loved it, but even on the used market couldn't hear a big enough difference to spend that kind of money, when compared to some of the other amps available.
-Krell KSA-250 Pretty much the same opinions as the KSA-150, but with even more slam!!! Apples to apples, I still prefer the Theta Digital Dreadnaught, especially with the extra channels versatility for the same price.
-As a side note, my friend in the Netherlands (who bought my old SC-V's about a year ago) has been running them with a Krell FPB 700 CX amp and absolutely loves them!
There's probably about 7 or 8 other amps I've tried, but none really worth mentioning...
I can't say enough how I could live perfectly happy with ANY of the above mentioned amps. Even though the V's are incredibly revealing, there must have been a reason John Dunlavy liked the relatively cheap Adcom GFA-5800!