Tone Controls

May 27, 2008 at 10:27 PM Thread Starter Post #1 of 18

Joe Beets

New Head-Fier
Joined
May 27, 2008
Posts
2
Likes
0
There are millions of middle aged music lovers who regularly attended live performances back in the 60's and 70's where the volumes were incredibly loud. You may have seen photos of the old concert stages covered with stacks of speaker cabinets. Nowadays that sort of thing is just for show. But in the early years they were actually used. Even in the small local clubs, the bands usually had a wall of amplifiers behind them. Audiences were deafened and, of course, it was even more damaging for the musicians on stage. I played professionally during those years and endured those sound levels six nights a week with no ear protection. Most of the guys I performed with didn't use plugs either. So what happened? My high frequency hearing is seriously shot. I can barely hear the top six notes on an 88 key piano. Mainly just the mechanical sound of the hammer striking the strings. I'll bet there are millions of other old timers out there who's hearing is shot as well.

When I listen to recorded music it is always extremely bottom heavy. Always too much bass, and on rock music especially, that damn incessant pounding bass drum. I've tried a few make-do solutions to cut down the bass. Harrison inline high-pass filters on the CD output worked, but they aren't easily adjusted while you are listening. Then I built a couple of cheap hobbykit tone adjustment modules but they were noisy and had scratchy pots. Both of them eventually made a loud popping noise and went dead. When the last one blew it fried out one channel of the CD player it was hooked to. Next I tried a Behringer PA mixer. The EQ section allowed me to cut the bass, but it seemed stupid to have eight channels and dozens of controls to perform such a simple function. And the sound was sort of.....well...stifled. I just ordered a Gemini PA-7000 with a three band EQ and I'll give that a try. If that doesn't work, maybe I can find a stereo graphic equalizer with enough boost to drive a set of headphones.

So what am I getting at? Wouldn't it be great if just one of the dozens of headphone amp makers could put out a model with tone controls. Or at least a 6db 80hz switchable filter. And maybe even a balance control. Something like this would be a smash hit with the hearing challenged. If only I could come across a Xenos HA3 at a garage sale.
 
May 27, 2008 at 10:47 PM Post #3 of 18
Maybe add a Neurophone. It bypasses the damaged parts off your hearing and should make hearing more complete/fun.

But if you have a stationary setup, why not connect your cd player digital to a eq like this Behringer and use the digital out to a nice DAC?
 
May 27, 2008 at 11:01 PM Post #4 of 18
There are plans for a headphone amp with Fender-style tone controls over in the Headwize library. I haven't built one (yet), but it sounds exactly like what you're looking for.
 
May 27, 2008 at 11:14 PM Post #5 of 18
Or the tilt equaliser as used by Quad?

quad34.gif



Link
 
May 27, 2008 at 11:32 PM Post #6 of 18
A small, reasonably priced rig that could be portable or used in a home system would be so practical. I know that the idea of "tone control" on a headphone amp is sickening to many. But a headphone amp, portable or stationary, is useless to me without them. Besides, I'd like to keep my system small and my signal path as short as possible. CD player> headphone amp> phones. I tried a Rane 31 band stereo equalizer before but it didn't have enough power to drive the phones. And it was too bulky to lug around on my back anyway. Most equalizers on the market now don't have a headphone output either, which means I would have to run the equalizer through an amp or receiver as well. That sure is a pile of gear to just add 6db of cut at 80hz. Makes more sense to me to add two resistors, two capacitors and a couple of small knobs to a headphone amplifier. It's too bad the Xenos 3HA didn't take off. It was probably because too many were freaked out by those tone controls.

I just read the article at Headwize on the Quad. Sounds like it might be..........expensive.
 
May 28, 2008 at 12:59 AM Post #7 of 18
All good suggestions. Or you could just get yourself a pair of Audio Technicas.
smily_headphones1.gif


Tim
 
May 28, 2008 at 2:45 AM Post #9 of 18
Tone controls rock. I am all for them. I use them on my excellent vintage Marantz 2270 reciever (ca. 1971) and it helps. Right now, I'm listening to a Frank Sinatra LP and while it sounds great, the horns are a bit bright and glaring in this analog recording. A little adjustment on a knob smooths it out. It's like a miracle! Great tweak. I still get audiophile vinyl sound.

Also, the tone controls on this reciever feels very nice. They are properly lubricated and turn very smoothly. The actual knobs are very nice as they are like thick heavy lugs of refined steel and look very sleek. I dislike thin plastic knobs but a set of thick polished knobs on a clean conditioned Marantz looks beautiful.

My tube amp has no tone controls but the great sound makes up for it.
 
May 28, 2008 at 2:53 AM Post #10 of 18
The primary function of a headamp should always be to let you enjoy sound. And if that needs a tone control, so be it.

Quad's are expansive and not portable. Maybe look into a second hand older model? There here sinds the 50's or something like that. And the schematic posted above should not cost that much, be maybe you should try to find somebody to build it for you.

One last thing sprung to mind. Tension labs sells a small headamp with quite a advanced EQ build right in. It should be more than possible to cut the lows and boost the highs to get the signature sound you are looking for. And it is not that expensive and it is portable.
 
May 28, 2008 at 1:08 PM Post #12 of 18
Quote:

Originally Posted by Spareribs /img/forum/go_quote.gif
Tone controls rock. I am all for them. I use them on my excellent vintage Marantz 2270 reciever (ca. 1971) and it helps. Right now, I'm listening to a Frank Sinatra LP and while it sounds great, the horns are a bit bright and glaring in this analog recording. A little adjustment on a knob smooths it out. It's like a miracle! Great tweak. I still get audiophile vinyl sound.

Also, the tone controls on this reciever feels very nice. They are properly lubricated and turn very smoothly. The actual knobs are very nice as they are like thick heavy lugs of refined steel and look very sleek. I dislike thin plastic knobs but a set of thick polished knobs on a clean conditioned Marantz looks beautiful.



Sounds like my dear old HK integrated, except the tone controls are semi-parametric, ie: push a button to change where the bass control hits, at 200 or 400 hz, choose between 5khz or 10khz for treble, or push another button to bi-pass the tone controls altogether for those who think they hear signal degradation. It's a marvel of modern technology, circa 1970 or so...

Tim
 
May 28, 2008 at 6:33 PM Post #14 of 18
Quote:

Originally Posted by Kabeer /img/forum/go_quote.gif
Wow that tension labs amp looks v.cool. Its only 3.7V though...wonder how powerful it really is. Anyone heard it?


About the power, its 2x 80mW, that should be enough. And you can always increase a voltage like headroom does for its portable amps, so the battery voltage does not limit the voltage for the poweramp.

Nope. I emailed the company to get it reviewed over here. I volunteered ofcourse
smily_headphones1.gif


And passed them a suggestion about improving the bass experience with any headphone.

The still have to get back to me after the initial email
frown.gif
 
May 28, 2008 at 7:10 PM Post #15 of 18
I'm getting one of these:

AUDIO TECHNOLOGY - EQUALIZERS & ACCESSORIES - ULTRACURVE PRO DEQ2496 : Ultra High-Precision Digital 24-Bit/96 kHz EQ/RTA Mastering Processor

Inserting it before my DAC
smily_headphones1.gif
I decided to do this after I tried the graphic EQ on my Creative Zen and it fixed everything I hate about my Shure SE530s (too much bass/recessed midrange). I used the measurements at headroom to do this.

Oh and by the way I can assure you that the ultraloud concert is still alive and well for young people as well. I've been a couple hundred feet from a Concorde takeoff and that didn't compare to my last Nine Inch Nails concert (now I wear earplugs).



Cheers,
Chris
 

Users who are viewing this thread

Back
Top