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mypathtodivinity
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Joined: Feb 23 2012 - 5:44am
Help/I'm new/about vinyl setup/and EQ yes or no (how to connect)

 

Hi everyone. I'm in need of some help from you folks and to make things worse I'm inquiring about something that seems to be unpopular...

 

But in the last month or two I've read through parts of this forum diligently and am convinced someone out there is generous enough to pitch in! I'm trying to incorporate an EQ into my turntable/receiver system. The table is a music hall 2.2 with an ortofon 2m blue cartridge and the receiver is a harmon kardon hk3490. The receiver has an option to line out between the preamp and amp, and also has a tape loop or recorder in/out. The two EQ boxes I'm trying to figure out are from Rane. These are a 1 channel 30 band and a 2 channel 15 band, and unsure which one is more appropriate.  I'm hoping that someone can clue me in to why this idea is sacrilegious but also provide the technical details should I prove to be stubborn! lol. Here's what seems to be so confusing to me. The outputs on the receiver are RCA, (meaning unbalanced and mono?) and both EQs in question accept XLR and 1/8 jacks. However in the spec sheets, Rane says both processors accept TS and TRS jacks. So this leads me to believe I can hook either with an RCA/TS cable. But I don't know how this will affect the overall picture. Will an unbalanced signal into a 1 channel processor tweak both speakers in the headphones? Or if I do this unbalanced do I need to split the signal and go into a 2 channel processor. Or would it be better to use a direct box that converts the signal to balanced. And if so do I need a box on the way there and one on the way back or can one direct box handle there and back. lol. Another thing I don't know about that may be of importance is which circuit I choose on the receiver. In terms of balancing does it make a difference if I plug in between the preamp and amp, or is it balanced in the tape output (because it's after the amp?) 

 

Sorry I'm lost with all this. Anyways, hopefully someone out there can help me...

Thanks in advance...

jackfish
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Joined: Dec 19 2005 - 2:42pm
I'd invest in room treatments rather than

fool around with EQ.

mypathtodivinity
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Joined: Feb 23 2012 - 5:44am
Thank you for responding... I

Thank you for responding... I forgot to mention in my post that this system is for

headphones only. ( I live in an apartment and work nights as well ). Although I'd love

to be able to explore the idea of customizing a room, it just isn't an option for me.

I'm kind of bummed about that cause I'd love to crank the volume once in awhile!

jackfish
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Joined: Dec 19 2005 - 2:42pm
Well, if you must, I'd go with a two channel

equalizer. You have a right and left channel, yeah?

However, you will have an impedence and gain mismatch with the unbalanced RCA inputs and outputs of the HK3490 and the balanced 1/4" TRS or XLR ins/outs of the Rane EQ, which while it will work just using TRS or XLR or RCA adapters, it will lose a lot of signal and it is far from optimal. The Rane EQ is made for pro audio applications and does not accommodate home hifi equipment very well. You would need a pair of these http://www.mcmelectronics.com/product/MCM-CUSTOM-AUDIO-555-8485-/555-8485 or something similar to convert unbalanced to balanced to go from the HK3490 to the Rane and balanced to unbalanced back from the Rane to the HK3490 in the tape loop.

Perhaps an ART 341 or an Audiosource EQ200 which have RCA unbalanced inputs and outputs?

mypathtodivinity
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This is great help, thanks a

This is great help, thanks a lot! It looks like the Audiosource could be hooked up with the least amount of trouble, and the ART 341 is sold at Long & McQuade which happens to be a short drive away.....so I could hassle them about this too! lol.

Your advice about the impedence/gain problem led me to a Rolls device (here's a link to where I found it)

http://www.bhphotovideo.com/c/product/217366-REG/Rolls_MB15B_MB15b_Proma...

Am I right that this would not only correct the levels but also split the channel too?

jackfish
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Joined: Dec 19 2005 - 2:42pm
Yes

It looks like you could go both ways at once with that unit to convert unbalanced to balanced to go from the HK3490 to the Rolls MB15, connected to the intervening balanced EQ unit, and balanced to unbalanced back from the Rolls MB15 to the HK3490 in the tape loop..

mypathtodivinity
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Well, I appreciate your help.

This didn't seem to be a popular thread with the forum, but I'm greatful you decided to pitch in and I think your advice has helped a lot. The art 341 you suggested seems like a good option, and the store might let me try it out first too...

Anyways, I'll post back after the smoke clears and ask you about room treatments...

LOL.

talk to later

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