Message Boards

8020a's or b's, placement limitations, +4 or -10dB

2530g, modified 11 Years ago.

8020a's or b's, placement limitations, +4 or -10dB

Youngling Posts: 14 Join Date: 5/22/10 Recent Posts
I have depended on only Auratone 5C's since 1978 for my primary mixing speakers - partly because of space limitations and because I've "learned" how to mix with them & my mixes translate very well to other sources.
Yesterday I bought a pair of 8020a's with a 30 day trial period and I can also exchange them for a pair of b's as well. They sit on my corner shaped desk on the top of my Auratones and are 30 inches apart and 2 inches from the wall with my head being 30 inches from them. They sound absolutely great to me just the way they are without the dip switches engaged. I have not yet mixed anything to see how they translate because I'm to busy enjoying listening to my previous mixes and favorite CD's.
I have a Echo Layla 3G that recommends the output and input buses be left at 0dB to achieve the full 24bit dynamic range. When the nominal level select buttons are set to +4dB (they call it the 'professional' level) the volume's really loud and my 8020's can hardly go past 1/4 of the way clockwise w/out distorting - when the Layla is set to their -10dB 'consumer' level they are not loud and I can crank them up to 3/4 w/out any distortion.
My questions are:
Should I be concerned about the +4 and -10dB differences?
Should I be at the +4dB setting with the output and input faders below 0dB - like at -3dB
or
at the -10dB setting with the output and input at 0dB?
&
Should I be setting the bass or treble roll off dip switches like the manual/chart recommends?.... even tho they sound great the way they are?
&
The a's have the daisy chain output and front 'off' but the transformer is still on consuming energy ..... I have the speakers hooked up to a strip with other wall warts attached and turn them off when not in use. I may like the daisy chain capability for the sub combination down the road someday...Just How much energy is actually being used when they aren't unplugged? Is it worth giving up the extra output for the switch to turn them totally off??
Thanks
ilkka-rissanen, modified 11 Years ago.

Re: 8020a's or b's, placement limitations, +4 or -10dB

Yoda Posts: 2564 Join Date: 3/23/09 Recent Posts

I have a Echo Layla 3G that recommends the output and input buses be left at 0dB to achieve the full 24bit dynamic range. When the nominal level select buttons are set to +4dB (they call it the 'professional' level) the volume's really loud and my 8020's can hardly go past 1/4 of the way clockwise w/out distorting - when the Layla is set to their -10dB 'consumer' level they are not loud and I can crank them up to 3/4 w/out any distortion.
My questions are:
Should I be concerned about the +4 and -10dB differences?

Yes and no. Look at the next question.

Should I be at the +4dB setting with the output and input faders below 0dB - like at -3dB
or
at the -10dB setting with the output and input at 0dB?

You should be able utilize the full 24-bit dynamic range of the Echo Layla 3G with either setting: +4 dBu or -10 dBV. I would set it at -10 dBV and set the output faders so that you can max out the gain setting on the 8020's. That way their channel balance is the best possible due to the analogue potentiometers.

Should I be setting the bass or treble roll off dip switches like the manual/chart recommends?.... even tho they sound great the way they are?

It depends on the room acoustics. Usually most rooms need at least some amount of room eq, but if yours is really well damped and/or really large and speakers are placed well away from the walls, you might not need any eq. Can you tell me more about your room and how the speakers are placed?

The a's have the daisy chain output and front 'off' but the transformer is still on consuming energy ..... I have the speakers hooked up to a strip with other wall warts attached and turn them off when not in use. I may like the daisy chain capability for the sub combination down the road someday...Just How much energy is actually being used when they aren't unplugged? Is it worth giving up the extra output for the switch to turn them totally off??
Thanks

With the front panel switch in the off position, the power consumption is around 2 - 2.5W.
2530g, modified 11 Years ago.

Re: 8020a's or b's, placement limitations, +4 or -10dB

Youngling Posts: 14 Join Date: 5/22/10 Recent Posts
I am directly facing the corner of a 20x20 3 couched furnished room, fully carpeted with bookshelves on the right wall and windows on the left & far walls and the 12 foot ceiling is vaulted like in a barn. The speakers are 3 inches from the side walls and 2 feet from the corner, we make a 30 inch triangle. LIke I said they sound great to me w/out any dips engaged. I am going to make a few trial mixes to see how they translate compared to the Auratones. I have the Echo set to -10dB out & )dB and playback is set to 0dB as well and the 8020's set at 1/2 volume the levels are plenty loud enough although very comfortable. I usually listen at 1/3.
Any tips are appreciated.
p.s. Did the switch from the a's to b's primarily occur because of 2 - 2.5 watts??? That doesn't seem like a good enuf single reason to have to change the design & manufacturing process.
ilkka-rissanen, modified 11 Years ago.

Re: 8020a's or b's, placement limitations, +4 or -10dB

Yoda Posts: 2564 Join Date: 3/23/09 Recent Posts
I am directly facing the corner of a 20x20 3 couched furnished room, fully carpeted with bookshelves on the right wall and windows on the left & far walls and the 12 foot ceiling is vaulted like in a barn. The speakers are 3 inches from the side walls and 2 feet from the corner, we make a 30 inch triangle. LIke I said they sound great to me w/out any dips engaged. I am going to make a few trial mixes to see how they translate compared to the Auratones. I have the Echo set to -10dB out & )dB and playback is set to 0dB as well and the 8020's set at 1/2 volume the levels are plenty loud enough although very comfortable. I usually listen at 1/3.
Any tips are appreciated.
p.s. Did the switch from the a's to b's primarily occur because of 2 - 2.5 watts??? That doesn't seem like a good enuf single reason to have to change the design & manufacturing process.

Even though your room is quite large, the speakers are placed so close to the wall that you might try the -2 dB or -4 dB bass tilt dips. That way your mixes won't end up being too bass shy on other systems having less bass boost.
2530g, modified 11 Years ago.

Re: 8020a's or b's, placement limitations, +4 or -10dB

Youngling Posts: 14 Join Date: 5/22/10 Recent Posts
Ilkka,

I'm very happy to say that I just got a great deal on a 7050B sub that I couldn't refuse, so I have more placement/set up questions to burden you with.

Please remember from my previous questions that my whole set up is in a corner of the 20x20 room w/ the 8020's and myself being 36 inches apart.

I am planning on the sub residing on the left side of my desk/chair at a distance 3 or 4 inches from the side wall and about 36 inches from the corner.

The sub could also be placed between 6 to 8 feet from the corner & against the wall so it could be in back of my left side.

Can you tell anything I might expect from this positioning and how I can compensate for this less than ideal set up?

root aka Bob G
ilkka-rissanen, modified 11 Years ago.

Re: 8020a's or b's, placement limitations, +4 or -10dB

Yoda Posts: 2564 Join Date: 3/23/09 Recent Posts
Bob,

I would definitely recommend the first placement option. It's usually best to have the subwoofer near to the main speakers and if possible, also near to you because then you are in the near field and the room modes won't have such an large effect on the frequency response. Of course if possible, experiment with different placement options and always remember to calibrate the subwoofer properly (gain, phase, roll-off) for each placement.
2530g, modified 11 Years ago.

Re: 8020a's or b's, placement limitations, +4 or -10dB

Youngling Posts: 14 Join Date: 5/22/10 Recent Posts
Look to this thread for the follow up replies, answers and more questions:

"7050B/8020a's or 7050/8020b's master volume set up"