Does active and passive inputs really matter in a bass amp?

[agedhorse]

On 14/06/2012 at 06:37, dincz said:

See above for explanation.

It says the same thing about high impedance pickups running into low impedance inputs. Guitar/bass amps generally don't have low impedance inputs anyway - unless they have a line input which is typically only 20kohm or so.

Both hi/lo level/sensitivity inputs on amps tend to be at least 500kohm (high impedance) or so, so there won't be a problem.

Actually, this is only sometimes the case.

Depending on  the design, it's not uncommon for an active input to have a lower input impedance of say 50k while a passive input may have an input impedance of 1Meg. This is often the reason why many players view the active input as a "tone suck", not because of the lower sensitivity but because of the lower input impedance (especially an issue when using both with passive pickups).