Attn: DD-1 users.

[Noobtastic14]

I copied this from another thread, I think it is something everybody needs a reminder, especially now that so many people are using the DD-1 as well as using it as a defense when members on the forum are telling them they clipped their woofer.

The DD-1 is a great tool for the average consumer to set gains consistently and accurately. But, a DD-1 is not an end all solution to never clipping your woofers. Different songs are written at different levels, some include clipping from the start and some don't. It is the users responsibility to be "in tune" with their setup and recognize when they are pushing to hard and adjust.

For example, I've watched the man Steve himself alter his levels constantly depending on song and frequency. He had excellant attention to detail, constant monitoring of the health of the setup, and he controlled the system variables. I'm sorry (OP of the thread who blew a woofer) thought this woofer was indestructible and using the DD-1 was definitely a good move now you need to refine these skills by using the DD-1 with the right tones (I used 40hz -10db for my Scope) and constantly improving on how you are controlling the system.

-Drew

**Remember, woofers and amps are stupid. They only do what they are told and you are the bus driver on this road to DBs**

[FeArZ]

So for someone that mostly listens to mostly Decaf and Rap in general what tone should be used?

I have seen people say -5db some say 0db so I'm lost.

Edited April 24, 2012 by FeArZ

[skittlesRgood]

some good things to remember there drew.

the DD-1 also didnt make DMMs and scopes useless like some people seem to believe.

[Noobtastic14]

So for someone that mostly listens to mostly Decaf and Rap in general what tone should be used? I have seen people say -5db some say 0db so I'm lost.

My understanding is this: using the "negative" wave actually gives you a boost in final output. It is like this because if you hear a perfectly clean sine wave it will be not nearly as loud as a soft clip wave. Woofers can take this much better than mids/highs can because of the size and frequency of the waves. So, the farther you go the more distortion you are allowing for when you switch off of your wave and back to music. A 0db freq. is least likely to clip at the number you set it on and so forth. For mids and highs you want a 0db because any little bit of distortion is much more audible and potentially damaging to the speaker.

In a nutshell, 0db is least final distortion and -15db is the most. The DD-1 allows you to consistently and accurately set the gain for each level out output (which is your choice as the bus driver)

-Drew

**note: keep in mind when I say "clip" I don't mean a flat wave hard clip I mean the very initial stages of distortion.

Edited April 24, 2012 by Noobtastic14

[Noobtastic14]

If you have a hard time visualizing a clean, soft clip, and hard clip wave this is a very old video of mine.

-Drew

[carlosg_313]

i use 0db tone when i tune mine. i know which songs will clip and make my sub stink. and i know which one is quieter and increase the bass level a little bit on the head unit. remember, listening to song off your AUX can clip easier than using a CD.

for example:

i have a apple tv 1g that i use as my main source of songs, videos, pandora, etc to bump. i use it off the AUX. when tuning my amp off the deck, as everyone knows i use the CD for the test tone. i tune mine 59/62 off the cd. BUT when i listen to music off my apple tv, I know my max is 53 because anything above that volume will start to clip and get stinky.

just my 2 cents

[Kyblack76]

love this post. In the end of all end... (scope, DD1, ear, bass knob) in the end, the user is the chooser.......or, abuser...

[SoCaLBaMF]

Now if someone used the DD-1 in conjunction with the VU-DIN I think less people would be having problems, I will definitely be getting the VU-DIN.

Unless the DIN just goes off of volume numbers

Edited April 24, 2012 by SoCaLBaMF

[soundsystemaniac]

Going to keep an eye on this thread. I'm interested in more q & a

[meade916]

some good things to remember there drew.

the DD-1 also didnt make DMMs and scopes useless like some people seem to believe.

for setting gains it did. I will never ever use an O-scope to set another gain in my life.....