It was not easy, but I finally placed my SimAudio 700i integrated amp in bypass mode. It was not an easy process.
I am using the volume control on the Bricasti M21 DAC to control the volume. The sound is good but NOT light-years better than using the preamp. My ’gut reaction’ is it might not be as clear. The music does not seem as smooth. The Preamp might add more air. I am still doing more listening. Please stay tuned.
So, an hour later, as I stated above, when going direct, I felt the music was missing something. The music was not as open or engaging when going direct to my SimAudio amplifier. The music felt more closed in.
I switched back to preamp mode and everything was sounding right. The air and engaging factor were returned. The music sounded much better.
For my application, and setup, I believe the preamp is needed to help the music sound natural, clearer and engaging. My experiment is done, and I am keeping my SimAudio 700i integrated amp. Case closed.
I know that other people prefer going direct from a DAC to a power amplifier. Based on my audition, my decision is dependent on my equipment, my environment and how I listen to music. There is no right or wrong answer since it just depends on the individual.
So, the bottom line is you have to test Going from the DAC to your power amp in your system and then decide. I prefer using a preamp for the best quality sound. To me, the sound is flat, lifeless without a good preamp. In my system, the preamp overall sound is dynamic, engaging, clearer, smoother and fuller.
Please test and post your results. Everyone has different results and opinions on going direct to an amp using a preamp.