I use a first generation REL sub with my AKG K1000 in a small room. I initially had problems integrating, after advice, eventually settling on the lowest setting & not too much volume on the sub woofer. I also found it better to place the sub on a granite chopping board rather than directly...

Anyone else tried the parallel resistor tweak when driving the K1000's?

Paul, I have bought the 501/601/701 pads from this company for my K501's. No problems, bit of a long delivery time for the K601 pads but well worth the wait.

How do K501's fitted with K701 pads compare with stock K701's?

I don't dispute your pioneering spirit but why try to drastrically change something that sounds great anyway? I've tried the K701 pad change & it sounds excellent on certain recordings but it changes the sonic signature so much it's not the same headphone. One step forward followed by two steps...

So, with the benefit of hindsight & experience, what's the current opinion, which are the best pads for the K501 owner? Stock pads, K701's or K601's? I have K501's & was wondering which pads to try. Cheers

I think the K501 are a lot better than the K340.

Good tweak this Ferbose! Subtle but effective yet very worthwhile. You'll be pleased to know people are still trying it a few years after your initial findings. With regard to the K501 lack of bass, I've only had the headphones for a week, it seems to me any bass enhancement tweaks, such as...

Anyone else tried this? Is the Cardas a worthwhile upgrade to the K501 or is the stock cable decent enough already?

Although not having heard the combo myself, people, who's ears I trust, report Grado & Heed are not are match made in heaven. I think you may be better going elsewhere. Good luck.

I don't know if Heed using different component suppliers will have a detrimental effect on sound qualities but I just wanted to say my PinkFloyd modified CanAmp is a fantastic sounding piece of equipment. I use mine naked with the AD823 opamp & it really offers emotional involvement & total...

The CanAmp only has phono connectors so you would need an appropriate cable. I guess it might power extremely efficient speakers.

Hi, Anyone know what current the CanAmp uses on idle? Switched on with the volume turned right down? I've been leaving mine on 24/7 lately but just wondering what kind of current she would be using, then we can work out the watts. Also, mine buzzes if you tap it hard. Anyone listened...

Take care man & thanks for all your advice.

Quote: Originally Posted by dw6928 you are asking how a $400 amp compares with any (no price mentioned) SS amp? That's a tough comparison for any amp in the $400 range. I appreciate what your saying DW. It's just that I need to know what to aspire to next, & if there is a...

I use the Heed with HD650's. Question for Carlos, or anyone who has the experience, how does the Heed compare with the very best high end solid state amps? Cheers, Nigel

Thank you, Fitz. So simple. I had taken out the screw & couldn't understand why the cap wouldn't just pull off.

Cheers Fitz. One last question. How do you remove the end caps showing the AKG logo connected to the driver housing? Simply prise them off with a screwdriver?

Hi Fitz, I think these are the correct part numbers? K501 headband - Z458Z3501 Velour pads - 2955Z2601 Thanks for your help. Shame about the tweeter, am I correct in thinking it just packs in? Or, is it gradually deteriorating day by day? Cheers, Nigel

Hi, I read that the electostatic tweeter has a finite lifespan of around twenty to thirty years. Is there any way these units can be re-charged? Nigel

Hi KT88, First of all, thank you for your excellent mods & advice. I guess I'll have to play with the cotton wool & blue-tak. I guess more cotton wool, less bass? I'm going to try & source a K501 headband & velour earpads as per your recommendations. I've also ordered a replacement...

Hi, I picked up an unmodified pair of these last week. First impressions were of hardly any bass, especially in comparison with my usual HD600's. Anyway, I replaced the elastics, very positive results, especially as the headband was extremely loose beforehand. I cut the plastic grill cover...

Yes, the CanAmp seems to encourage higher listening levels because it sounds so damn good, the soundstage seems to really improve, you gotta be careful.

Hi, What is the consensus of opinion regarding the best op amp to use? I'm using the LM4562 & find it fantastic but I haven't tried my OPA 627's yet. The AD823 sounded wonderful as well.

Interesting Dex. Carlos, I translated your review. It makes some interesting points & is the first time I've read an evaluation with the Heed stacked up against something more exotic. Thanks guys.