coolcow

Does anyone know how to use this? I turned it on but didn't notice volume automatically adjusted on highway. ??

psp

The ASL lowers the volume when you are not moving and returns it to "normal" when you are moving. Some people do not notice it others do. I notice it and do not care for it so I leave it off. It's a matter of taste.

imthedrew

I would have to disagree with both of you. On my 98 GS 300, with the standard premium sound-system, I can tell a dramatic difference when the ASL function is selected. Overall the volume is a much louder, and the bass is most definetly "boomier." I leave the option on at all times, as the level of ambient noise within the car increases (or decreases), the ASL adjusts the levels to cope with or cancel out some of the ambient noise. >>> I really equate this to the Pioneer Stereo Reciever that I owned about 10 years ago, it had a "super bass" or "bass boost" function, that had the same exact effect on the my music. I listen to mainly Rap/Hip-Hop, and some classic rock/80's Blunder like The Who and The Talking Heads, SO I LOVE ASL!!! I HOPE MY RANT & DRIBBLE HELPS ANSWER YOUR QUESTION!!!

psp

The next time I'm in a 98 GS300 listening to HipHop or Rap I'll keep that in mind.

ps. ASL does nothing for my Dr. Dre 2001 CD (just jibberish).

Ingram4868

Your "Dribble" adds no valve to this discussion when you are comparing a 1998 GS300 to a 2007 ES350. BTW, I find the ASL not effective in our ES350.

4TehNguyen

iTrader: (1)

i found ASL annoying and turned it off, i notice the changes in volumes during high speed and low speed and it bugs me

PsychDoc

Let me make this simple. ASL is beyond awful!

As an audiophile who has spent over 25 years in the hobby (obsession?) I can tell you that this circuit degrades the sound in multiple ways, not the least of which is overboosting the bass to ridiculous levels at highway speeds.

Believe me it's simply abysmal. Do yourself a favor and leave it NOT engaged and adjust the volume to your own personal liking.

dreyfus

I wish mine was awful - then I'd know it was working. As it is, my ASL is like coolcow's and I don't notice any difference at all whether it's on or off.

Ingram4868

Perhaps it is more pronounced with the ML sound system.

amf1932

As an audiophile who has spent over 55 years in the hobby, I kinda agree. It's sort of a loudness control circuit that was used on certain pre-amps for home use. They very rarely worked properly since loudspeaker efficiencies were all over the place. Although it doesn't bother me that much when I have it switched on.
Now please don't get into an argument with me and tell me how deaf I am.

PsychDoc

Another audiophile, huh?

We're a crazy bunch and a lot of the time I'm sure that we're consumers of snake oil, but it is fun (if somewhat expensive).

amf1932

I know exactly what you mean. Here's a photo of my home system.

LexBob2

Where's the ASL button on that thing??

amf1932

The ASL button had to be removed, because when it was engaged it blew out the far wall of the room....too much bass. heehee

psp

Those speakers are so avant garde, but that looks like someone's shop.