Hi Derick, I got your e-mail.
Actually, I've only tried one amp with the 2.5s. The BAT VK200. A year and a half ago when I was running ProAc 1SCs I did a shoot out with some amps that included the VK200, Blue Circle BC22, an older Bryston 4B and a Pass Aleph 3. The preamp used with all amps was the Blue Circle BC21.
My prior experience with ProAcs [Tab 50 Sigs and 1SCs] showed that careful amp matching was necessary. The ProAc tweeter can be bright and I didn't like the results when using all solid state amplification.
Around three and half years ago, after doing a lot of forum reading I decided on the Blue Circle BC21 tube preamp and BC22 solid state amp combo. My reasoning was that a combo like this would provide three things I was looking for. Warmth, power and minimal tube hassle.
I've owned the 2.5s for abour nine months still enjoy using a tube preamp with a solid state amp. I have thought of trying other preamps such as the First Sound Presence and other solid state amps like the Plinius SA-102 and McCormack DNA-1.
I'm sure the First Sound would introduce a level transparency my room has never experienced. However, there's something about the older BC21 with its 6SN7 tubes Ive grown to love. They produce a rounder, warmer sound than the 6922 tubes the Presence and other preamps I've tried like the BAT VK3i use. It really depends on what you're hoping to gain.
While I enjoy the the power and ease of use solid state amps can provide, I have become curious about lower powered SETs, possibly as a second amp. While ProAcs don't have the best measured sensitivity, I've heard they have a fairly gentle impedance curve that makes it easy for some low powered SETs to drive. One amp in particular I'm eyeing is the Wright Sound Mono 10.
Good luck!
Dean
Actually, I've only tried one amp with the 2.5s. The BAT VK200. A year and a half ago when I was running ProAc 1SCs I did a shoot out with some amps that included the VK200, Blue Circle BC22, an older Bryston 4B and a Pass Aleph 3. The preamp used with all amps was the Blue Circle BC21.
My prior experience with ProAcs [Tab 50 Sigs and 1SCs] showed that careful amp matching was necessary. The ProAc tweeter can be bright and I didn't like the results when using all solid state amplification.
Around three and half years ago, after doing a lot of forum reading I decided on the Blue Circle BC21 tube preamp and BC22 solid state amp combo. My reasoning was that a combo like this would provide three things I was looking for. Warmth, power and minimal tube hassle.
I've owned the 2.5s for abour nine months still enjoy using a tube preamp with a solid state amp. I have thought of trying other preamps such as the First Sound Presence and other solid state amps like the Plinius SA-102 and McCormack DNA-1.
I'm sure the First Sound would introduce a level transparency my room has never experienced. However, there's something about the older BC21 with its 6SN7 tubes Ive grown to love. They produce a rounder, warmer sound than the 6922 tubes the Presence and other preamps I've tried like the BAT VK3i use. It really depends on what you're hoping to gain.
While I enjoy the the power and ease of use solid state amps can provide, I have become curious about lower powered SETs, possibly as a second amp. While ProAcs don't have the best measured sensitivity, I've heard they have a fairly gentle impedance curve that makes it easy for some low powered SETs to drive. One amp in particular I'm eyeing is the Wright Sound Mono 10.
Good luck!
Dean