Help - Taming the HF on GPA's 604-III

[Altec Best]

And maybe a tube amp for lower damping factor - fuller bass.

Hey Pano I always thought that if there was one problem with tube amps was that they don't sound as strong in the bass region (Shy-Weak bass output) Is this wrong ? Is my understanding of it flawed ? Thanks !

[Panomaniac]

Like everything else in life - "It Depends".

Vintage style woofers like Altec with a low Qts can sound dry and thin in the bass dept if driven with modern solid state amps. Those amps are too highly damped for the already highly damped (low Q) vintage systems. A tube amp with its much higher output impedance lets the woofer "run loose" a little, providing more bass. Most of the vintage drivers and boxes were designed with this in mind.
Put a high damping factor SS amp on them and they will sound bass shy.

Our own GM has been telling folks this for years, but mostly he gets ignored.

More modern speaker designs do better with modern style solid state amps.