2. amps-preamps
  3. 1015960155

Gain matching of power amps

How important is it to have amps of same gain when using amps from different manufacturers in a horizontal biamp? Currently using Audiolab 8000P's(29db gain) in vertical biamp configuration, but need to tame metal tweeter top end. Looking at McCormack(40db gain), and Classe power amps(anyone know the gain of these) as a solution. Do you have recommendation for other power amps that have a warm presentation that might suit? Does it matter if amps have different power ratings? Audiolab's are 100W, would you recommend more, less or same power for tweeter?
miketw

Showing 1 response by marakanetz

marakanetz's avatar
marakanetz
5,473 posts
 
I see no point in matching a gain. How can you controll it? Even if you find matched gain amps most-likely they will have different sencitivity. The input sensitivity of amps of different brands is different by non-negatable values by tenth fractions of volts or even by whole volts.
On the other hand you can use SET amp to drive your tweeter/midrange and 200W SS amp to drive a woofer if you have an active filter or crossover.
If you don't have an active crossover you might consider using two of the same brand matched amps for tweeter and woofer.
More to discover