Please help, I'm lost

[walter duque]

Anyone have a clue about these filters??

Please read
before configuring
Room EQ Setup
System Configuration, continued
ADJUSTABLE PARAMETERS
The Room EQ Setup accesses the Digital Room Equalizer, a feature
designed by Krell to provide every adjustment from simple bass and
treble to comprehensive room correction. The Digital Room Equalizer
enables you to adjust frequency response through three discrete
bands (I, II, and III). The four adjustable parameters available are filter
type, frequency, shape, and level.
There are four Room EQ setup memories, each of which saves
every parameter set for every filter, for every channel. Each setup
memory can save a configuration, for example, one for stereo music,
one for multichannel music, one for movie surround, and one for
video game software.
You can adjust the filters for Showcase Processor channels globally
or individually. Up to three filters can be configured to act equally on
all seven channels of audio. Alternatively, each filter can be configured
separately for each individual channel.
TYPE
Six filter types are available for each filter: Notch Filter, Peaking Filter,
High Shelf Filter, Low Shelf Filter, High Pass Filter (HPF) and Low
Pass Filter (LPF). Each of the filter types available has a unique
effect on frequency response.
The following three parameters for filters may be configured, depending
on the filter type selected:
FREQ
The center/cutoff frequency can be specified for all six filter types,
from 20 Hz to 16 kHz in 1/3 octave increments.
SHAPE
Shape controls the bandwidth of the filter and is adjustable on the
Notch and Peaking filter types, from 0.4 to 9 octaves. Shape is fixed
at a 6 dB / octave slope for the High and Low Pass Filters. This parameter
is not available for the High and Low Shelf Filters.
LEVEL
Level is adjustable on the Peaking, High Shelf and Low Shelf filters,
from -12 dB to +6 dB. Level is fixed for the Notch Filter at - 90 dB.
This parameter is not available for the High and Low Pass Filters.

http://www.krellonline.com/assets/support/showcaseproc_MAN.pdf

 

[WaynePflughaupt]

Anyone have a clue about these filters??

Probably, but I have no clue what you’re trying to find out. Are you asking what Notch Filters, Peaking Filters, High Shelf Filters, Low Shelf Filters, High Pass Filters, etc. are?

Regards,
Wayne A. Pflughaupt

 

[walter duque]

Probably, but I have no clue what you’re trying to find out. Are you asking what Notch Filters, Peaking Filters, High Shelf Filters, Low Shelf Filters, High Pass Filters, etc. are?

Regards,
Wayne A. Pflughaupt

I don't know what any of these filters do. I can't seem to find LFE channel setting, would that work with the EQ.

 

[Tyreman]

Okay generally speaking bad set up is worse than just using none of the tweaks.
ie: running out of circuit, bypass flat or neutral.


That said till you find out what each parameter is and specifically does by reading etc
Just run as ie above if you can.
Maybe shows on the display for those parameters as a nil, zeros or plus or minus indicators for each parameter.
Don't know your equipment.
Did see a factory default reset to if you really get lost ...that may be a neutral or out of circuit utilizing none of those parameters? Not sure scanned guide quickly didn't see that but coulda missed that.
I prolly wouldn't use most of those tweaks ...but that is me not someone else.
And I haven't studied or tried them to know.
Hopefully someone chimes in who has this equipment.

 

[ski2xblack]

Sounds like a tedious exercise in manual PEQ calibration. Got REW? You probably only need to worry about 250-300hz and below.

 

[KEW]

If you can provide a FR chart for your system/room, the good people here can probably make informed suggestions on which filters to use to establish a flat FR. But if you are tailoring for your own ear, you'll have to let us know what your objective is and we can probably do some trial and error. Either way, You will start to get a clue as you tweak.
It is not as complicated as it looks.
Shame on Krell for not providing some example graphics for different settings.

 

[WaynePflughaupt]

I don't know what any of these filters do.

Okay then.

Notch Filter: A super-deep and narrow filter, often used in pro audio settings to eliminate feedback frequencies. Has no use in a home theater.

Notch Filter at 2.1 kHz, 1.4 Q (1 Octave) ​

Peaking Filter: Can’t say I’ve ever heard of that one. I’m guessing they really mean bandpass filter which is your typical graphic or parametric filter. If a receiver has a midrange control, it will be a bandpass filter, albeit a fairly wide one.

Bandpass Filters at 1 kHz, +3, + 8, +12 dB ​

Low Shelf Filter: A filter that boosts or cuts everything below a designated “turnover” frequency. A common application is a receiver’s bass tone control.

Shelving Filter at 32 Hz, +8 dB ​

High Shelf Filter: As above, except for high frequencies. A common application is a receiver’s treble tone control.


High Pass Filter (HPF): A filter that rolls out bass frequencies below a set frequency (IOW, it only passes the high frequencies). Common uses are for a subwoofer, attenuating low frequencies below its operating range, and for a tweeter, attenuating frequencies below its operating range.

20 Hz High Pass Filter​

Low Pass Filter (LPF): A filter that rolls out high frequencies above a set frequency (IOW, it only passes the low frequencies). Low and High Pass Filters are what AVRs use to roll out the bass frequencies from the main speakers and direct them to the subwoofer.

80 Hz Low Pass Filter​

Hope this helps.

Regards,
Wayne A. Pflughaupt

 

[walter duque]

Okay then.

Notch Filter: A super-deep and narrow filter, often used in pro audio settings to eliminate feedback frequencies. Has no use in a home theater.

Notch Filter at 2.1 kHz, 1.4 Q (1 Octave) ​

Peaking Filter: Can’t say I’ve ever heard of that one. I’m guessing they really mean bandpass filter which is your typical graphic or parametric filter. If a receiver has a midrange control, it will be a bandpass filter, albeit a fairly wide one.

Bandpass Filters at 1 kHz, +3, + 8, +12 dB ​

Low Shelf Filter: A filter that boosts everything below a designated “turnover” frequency. A common application is a receiver’s bass tone control.

Shelving Filter at 32 Hz, +8 dB ​

High Shelf Filter: As above, only for high frequencies. A common application is a receiver’s treble tone control.


High Pass Filter (HPF): A filter that rolls out bass frequencies below a set frequency (IOW, it only passes the high frequencies). Common uses are for a subwoofer, attenuating low frequencies below its operating range, and for a tweeter, attenuating frequencies below its operating range.

20 Hz High Pass Filter​

Low Pass Filter (LPF): A filter that rolls out high frequencies above a set frequency (IOW, it only passes the low frequencies). Low and High Pass Filters are what AVRs use to roll out the bass frequencies from the main speakers and direct them to the subwoofer.

80 Hz Low Pass Filter​

Hope this helps.

Regards,
Wayne A. Pflughaupt

Thanks, this is a great help for me. At least now I know the purpose of the filters. Thanks again.

 

[walter duque]

Not a 100% yet, but I am getting there. Thanks for all your help. Wayne you explained this to me better then the people at Krell. Also found the LFE channel set-up.

 

[WaynePflughaupt]

Happy to help, hope you can get everything set up okay.

Regards,
Wayne A. Pflughaupt

 

[walter duque]

Happy to help, hope you can get everything set up okay.

Regards,
Wayne A. Pflughaupt

Krell couldn't even give me the information you gave me. Thanks again.

 

[KEW]

Shame on Krell for not providing some example graphics for different settings.

Is this product marketed to home audio consumers or audio technicians? Most people probably just don't use it.

All it would take is a page or two of graphs!

I wonder how good the on screen display is for helping you keep track of what filters and settings are in place?