Bottlehead Forum

Bottlehead Kits => BeePre => Topic started by: IntarsiaGuy2 on June 13, 2021, 12:37:14 PM

Title: BeePre2 Match with VTA-M125 monoblocks
Post by: IntarsiaGuy2 on June 13, 2021, 12:37:14 PM

I am interested in building a BeePre2 to pair with VTA M-125 monoblocks, and want to confirm the numbers make sense.

The monoblocks list their input impendance at 270K ohms.  So wanting at least a 20-1 ratio, the BeePre2 output impedance of 3K should be fine.
The M-125 input sensitivity is listed as 1 volt in for 125 watts out which I understand to be fairly typical.

Anything else I need to consider as to whether this pairing makes sense?

Title: Re: BeePre2 Match with VTA-M125 monoblocks
Post by: Paul Birkeland on June 13, 2021, 12:56:27 PM

One other dimension to look at is how sensitive your speakers are and how much gain your amplifiers have.  If your speaker sensitivity+amp gain is more than 110dB, you may need to add this tweak: https://forum.bottlehead.com/index.php?topic=13332.0 (https://forum.bottlehead.com/index.php?topic=13332.0)