Harman Kardon Mods HK 3490 Harman Kardon Recievers Modifications to Harman Kardon receivers and other brands

WHILE SUPPLIES LAST!!  
We happened up a very limited supply of NEW factory direct HK 3490 Stereo Receivers. This is the pinnacle of HK's analog stereo receivers that were sold at an affordable price, yet with the full bandwidth of much more expensive receivers. Compared to the newer digital power supply receiver of Harman Kardon, the sound quite substantially better on these analog receivers with the larger, more stout analog power supplies. The bass is fuller, much deeper, and has better texture. It is not a one dimensional digital sounding bass that plagues other digital units. The top end is much more natural with better mid range. And they respond very positively to to modification with increased performance through the entire bandwidth. 
The HK 3490 (And also HK 3480, 3485) can be modified to give them better bloom, improved clarity, sweet mid range and top end, and improved bass control, texture, amount, and depth. Location is also greatly improved. 
We've been doing this modifications to Harman Kardon receivers many years with very positive feedback from our customers. A reputable online review can be found of the HK 3480 on "Secrets of Home Theater and High Fidelity" by searching for our name and modification of that unit. 
The price of the a modified HK 3490 is $745 total, which includes free shipping and handling back to you in the continental USA. Feel free to ship your own HK 3480, 3485, or 3490 and other receivers to us for modification. Our modification price is currently $395 to have your unit modified, which includes free shipping and handling back to you in the continental USA. Turn around time is 3-5 business days.      

FREE SHIPPING AND HANDLING BACK TO YOU IS INCLUDED IN THE MODIFICATION PRICE

We also modify all makes and models of receivers, players and other pieces. We can also modify such subwoofer brands as Velodyne, JL Audio, REL, and others. We also modify Rotel, Harman Kardon, Pioneer Elite, Peach Tree, Mark Levinson, Parasound, and other pieces. 

We also modify DACS, floorstanders and bookshelve speakers on a regular basis. Please call for pricing. 

Stereo Dave's Audio Alternative

971-221-7317

[email protected]

Customer Feedback

Every once in a while, we get emails back from customers that take the time to let us know how they liked their modified units. 

"Hello Sean,



Finally received the amp (Music Hall A15.3 Amplifier) from FedEx today, been listening to the amplifier for several hours now.

I have no intelligent audio superlatives to share. This little baby
sounds simply amazing. What amazing dynamics, staging and real bass
weight. What was veiled and subdued previously is gone.



The AJ Pioneer Bookshelves are leaving here tomorrow for you to work your magic.



Thank you to you and your team. You have a customer for life.



Very pleased with the result.



Best regards,"

"Good evening Sean,

  All hooked up. Listening to CD. Dire Straits Communique.   Cant believe it Sean. Cant believe this quality of music, of fidelity, is coming from these bookshelves! They are so open, clear, airy. No grey overcast here man! The pace, rhythm and timing is exceptional now. It is just so right.   They are standing beside their big brother floor stander I was listening to earlier this week. There is no comparison. I cant imagine what that modification would sound like. Damn.   Cant wait for the subwoofer to land. Oh man am I going to be happy happy.   Nice work folks. Friggin awesome.   Take care and best regards,"  

"Hello Sean,
Finally received the amp  (Music Hall A15.3 ) from FedEx today, been listening to the amplifier for several hours now.
I have no intelligent audio superlatives to share. This little baby sounds simply amazing. What amazing dynamics, staging and real bass weight. What was veiled and subdued previously is gone.
The AJ Pioneer Bookshelves are leaving here tomorrow for you to work your magic.
Thank you to you and your team. You have a customer for life.
Very pleased with the result.

Best regards,

Andy"

"Hi Sean

I had a chance to do some listening to the modified Oppo (103) player and was not prepared for the difference in sound I heard compared to the stock unit. Most noticeably, the sound stage has hugely expanded, which, upon first hearing, made me shake my head in disbelief. The location of the instruments is more precise and the low end frequency much more palpable. There is just "more" of everything in the presentation of the music. I have had many mods done to my audio equipment over the years and your mod ranks near the top of the list for the degree for sonic improvement for the investment. You mod is a huge improvement over the already fine stock unit. Thanks a million!"
Mark from California

Sean,

I love the sound of the modified (Pioneer BDP-53FD) player. I have it hooked up using the analog inputs. I didn’t change anything in my set up except to swap players. It sounds way different than the Denon 2900: better in every way. The biggest difference for me was how the player made the speakers disappear. Does that make sense? Music sounded ok with the Denon, but it was just a source to play cd’s, nothing special.

I listen to all types of music: swing music from the 30’s and 40’s, Latin or Salsa music for dancing, smooth jazz for night time listening, 70’s soft rock and classic rock. I’m all over the board. The player did make a difference in the presentation of the music. One example is the bass: the Denon’s bass was rather bloated. I didn’t notice this until i had the chance to listen to the Pioneer. The Pioneer’s bass was more natural. The bass blended better with the music and didn’t sound like it was “in your face”.

The vocals sound great as well. Even my 14 year old commented on how the voices sounded smoother and more natural. He even mentioned that it sounded like there was a center channel speaker hidden somewhere for the voices to come out of and “float in the air”. Nope, just my Tekton Lore speakers.

The Pioneer has taken my listening enjoyment to a new level. Kudos to whoever designed the mod because it does sound awesome!

Thank you,


Javier

Here is feedback from one of our modified HK 990 units from a customer:

Sean,

Forgive the late feedback, but just to say I absolutely love the amp. This is just the sound I was looking for.

Thank you,

Andrew

Australia