This is from Rogue. As you see they do not provide input impedance. Do we need to care for something the maker does not provide? Or, am I missing something? - frequency response: 1Hz-200KHz ± 1dB - THD: <0.1% - gain: line stage: 23dB - gain - mm phono: 65dB - gain - mc phono: 75dB - RIAA accuracy: ± 0.1dB - rated output: 1.5V - maximum output: 30V PP - output impedance: 350 Ohms - dimensions: 17"W x 5½"H x 14"D - weight: 27 lbs. - shipping weight: 32 lbs. - power requirements: 115/230V - 50/60Hz |
Yes, input impedance of the preamp matters as it mates with the output impedance of the source (MHDT Labs DAC). For more information read the info on the Burson Audio Buffer, which is a device designed to correct impedance mismatch. |
Tvad I am not sure at the moment. My preamp is a BAT VK5i. The Paradisea sounded just as you described. I was very sad to be honest because I was really looking forward to enjoying this dac especially with all the buzz about it. I borrowed a friends Muse Model 9 Signature Gen III while I had the Paradisea and never gave it back to him...lol. He preferred his Muse separate transport and dac over this player so it worked out for both of us :) |
Stereophile's test measuremets for the BAT VK-3iX state: "The unbalanced source impedance varied from 7k ohms at 20Hz to 1460 ohms at 1kHz and 2650 ohms at 20kHz, while the balanced figures ranged from a very high 14k ohms at 20Hz to 1850 ohms in the midband and above." 7k ohms would be too low for the MHDT Labs 800 ohms output impedance, and would likely result in weak bass performance. Of course, the test measurements may or may not correspond to your BAT preamp, but this gives you an idea. The Burson Buffer would correct the mismatch. Another option would be to try the MHDT Labs DAC into the BAT's balanced inputs using adapters. |
