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Harmonic Technology Pro-9 Plus
Harmonic Technology Pro-9 Plus
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Performance
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Rating
Reviewed by:
Dnarb
(AudioPhile)

Review Date
June 19, 2009

Overall Rating
 5 of 5

Value Rating
 5 of 5

Used product for
1 to 3 months

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Review 1 of 52

Price Paid:  $0.00

Summary:
I find these cables incredibly musical and suited for all types of music. It is very neutral over a wide frequency spectrum. Th bass sounds controlled, precise and powerful, the mids are liquid and the highs are silky smooth, even when things get busy, the highs never sounds sharp.

The cable is also very quiet. It renders a wide and deep 3D sound stage, and it portrays textures and colours very faithfully in large orchestral music. It maintains an amazing balance between being very detailed, whilst never sounding bright or edgy.

At this price it deserves the highest recommendation. I've used in with Vivid Audio B1 speakers. I compared it with Kimber 8TC, which is also a neutral sounding cable. The difference in the bass and the mid range (which sounds a little recessed with the Kimbers) was immediately apparent.


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Rating
Reviewed by:

bappy

(AudioPhile)

Review Date
November 18, 2005

Overall Rating
 5 of 5

Value Rating
 5 of 5

Used product for
Less than 1 month

Visitors rate this review
4.00 of 5, 4.00 votes

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Review 2 of 52

Price Paid:  $700.00 from Harmonic Tech USA

Summary:
$ 700 is for the length of 6 Feet Can a cable be MORE important then a component. You will not believe what these cables can do. It can be more important than a component. Believe it. Not everyone will jump for cable like this as these are not very cheap. But people who are in a league of over $10,000 system only they will think of cable that range. These cables, in my opinion, are in a league of their own in delivering music of all types and recording quality in the most musical manner that I have ever heard. The sound is neutral and intoxicating with a sense of quietness and harmonic rightness that has unseated some very good cables in my system. If you would like to enjoy all your music with size without sounding loud, if you want to hear inner detail with delicacy and perfect tone you must try these cables This cable is so sweet on the mids and hi’s that the difference is immediate and the next day was even better. It has some certain recommended time for break in but when a cable is really good you can tell right away. The bass extension and overall spectrum is mind blowing. Great air between instruments, clear focus and naturalism at male/female vocals. Sound becomes silky clean, harmonics of instruments are defined and clearly understood. Bass is powerful with full body, fast and tight real tight. Generally speaking, with this cable, entire spectrum of signal become more natural, defined and clean. Matter of fact if I want to explain it further it will take day or two to finish my writings, so you can see that I am that much happy and grateful that I have bought this cable. You just can not go wrong with this cable that I can guarantee. Mr Jim president of Harmonic tech is a wonderful and well behaved gentleman and very helpful. In conclusion I want to say that Pro 9 Plus speaker cable has completed my system. Thank you Jim and also thanks Harmonic Tech for this wonder full product My System: Transport: CD Player: Marantz SA 8400 and Pioneer S 733 Universal Player. Dac: Benchmark Dac 1 Pre: Krell KSL 2 Power: Bryston 4B SST Speaker: Dynaudio Contour 3.3 Interconnects: Digital: Silkylinks Silver Balance: Guarilla Audio Silver XLR Speaker Cable: Harmonic Tech Pro 9 Plus (Yes) Ac Power Cord: Harmonic Tech Pro AC II Power : Amoco Online Power Conditioner

Strengths:
Sweet, Powerfull tight extende bass, Mids and hi's are perfect.

Weaknesses:
Very Heavy.

Similar Products Used:
Accuestic Zen, Stealth, MIT.


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Rating
Reviewed by:

bappy

(AudioPhile)

Review Date
November 9, 2005

Overall Rating
 5 of 5

Value Rating
 5 of 5

Used product for
Less than 1 month

Visitors rate this review
3.67 of 5, 3.00 votes

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Review 3 of 52

Price Paid:  $700.00 from Harmonic Tech

Summary:
This is more like a warning than a review . I have read all the review on this cable and got wonder, that how some people intentionally try to make some bad impression on this excellent cable. They do not even think how it will effect the company or the people who wants to buy some good products. These people are out of there mind as they are comparing this cable with the Radioshack products, which is already a Stereophile recommend product. They do have some nerve to do that. Then I must say that they are much more expert in audio world then Stereophile people. I have one word for them go get a life instead of giving your inexperience expertise to the world. I am going to buy this cable soon, which I have ordered already. I already have their Power Cord (Ac Pro II), which is an excellent product and also believe that this speaker cable is a excellent one also. Mr. Jim the president of Harmonic Tech is a wonderful person and he help me a lot far, their customer is also outstanding. Please do not I repeat do not listen to people, listen to your ear and audition this cable by yourself. I am giving five star before even listening and will write again after listening.

Strengths:
Their good value against the quality.

Weaknesses:
None so far.

Similar Products Used:
Acoustic Zen.


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Rating
Reviewed by:

pigunios

(AudioPhile)

Review Date
August 30, 2005

Overall Rating
 5 of 5

Value Rating
 5 of 5

Used product for
1 to 3 months

Visitors rate this review
5.00 of 5, 1.00 votes

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Review 4 of 52

Price Paid:  $600.00

Summary:
After evaluating several high quality cables I came to realise that the pro-9's is the most complete speaker cable for this money, and even beating more expensive famous ones. And I was lucky to find much cheaper demo ones. Something I have to say to some so-called "audiophiles" with bad but ridiculously childish reviews, is that synergy is always important. Don't blame great cables or components if something else in your system is causing problems with fidelity. All system must be in a similar quality level. Positioning of speakers is also of great importance. Is also important in order to get best results to use Harm.Tech interlinks as well and if possible even their powercords. Because their cables are simply transparent with lack of character or distortion, unlike some others that claim the same but they always get something slightly wrong. The pro-9's allow music to flow through and might also show some imperfections in your system. With my humble, not so expensive or extreme hiend system of Musical Fidelity A300 amp, AH! Njoe Tjoeb cd4000 reference cd and B&W 705 speakers I got unbelievable results with these cables. Music is communicating beautifully with awesome clarity, presence, dynamics, naturalness, harmonic richness, big 3D clear soundstage, giving a result that borders to real especially with well recorded music. Completeness is the word that comes to mind. And I dare to compare my system now to some much more fancy and expensive systems I've listened in hifishops. It's also because these components seem to gel well together, but thanks to the HT cables they were allowed to shine. It's been said that the 705 have a tendency to leaness and lack in bass weight. That's true if you use other cables! Not with these ones! The pro-9 is indeed the closest I've heard to no cable at all, simply allowing the info through. If you want more colored or characterized sound, like supposedly more air on top that is caused from slight treble distortion for example, then look elsewhere. If you have good components and want cables that "really do their job" by standing out of the way and don't cost the earth, then I can only think HT cables and perhaps Townshend from UK or even the Acoustic Zen. But for me HT get top vote. It seems that manipulating of metal and metallurgy which is used by some cable makers, does make a great lot of difference, along with good construction of course. By the way...listen to the music! Not just sound. Cheers

Strengths:
Everything. You don't miss a thing. Completeness. Like no cable is there. Awesome transparency, dynamics, bass, timbre, soundstage etc.

Weaknesses:
Might be also everything...if you have crapy components or speakers, or if they just don't combine well. It doesn't matter how expensive components or speakers are in that respect, regardless of how some people think about it.

Similar Products Used:
Transparent, Kimber, Ecosse, Nordost, AH!, QED, VDHul, and last Townshend and Acoustic Zen that are of similar great perfomance. Didn't get the chance to try the also great Siltech cables in my system but I find them comparably seriously more expensive.


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Rating
Reviewed by:

Klange

(AudioPhile)

Review Date
February 17, 2005

Overall Rating
 4 of 5

Value Rating
 4 of 5

Used product for
More than 1 year

Visitors rate this review
1.00 of 5, 1.00 votes

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Review 5 of 52

Price Paid:  $1200.00

Summary:
Its very funny to read the reviews here. Either you seem to love that cable or hate it! But there is no way that this cable deserves only one or two stars! The pro 9 + (biwire) have many great qualities, which has become visible to me since I have recently compared it to the SPM from Nordsost, a far much more expensive cable. In comparison the Pro 9 is not quite as open and "in your face" -like, but it sounds much more natural and homogeneous than the NO, things that I value more. The quantities of detail is actually the same, but instruments and voices sound much more true to reality, and without the colouring of the Nordost. The components in the music is much more harmonious composed with the pro 9 cable. It has a great mid range, sweet sounding, round treble, but not quite as deep as SPM. Pro 9 makes a huge soundstage huge if your speakers allow it. I dont understand why som reviewers claim that the pro 9 is edgy? The homogeneous sound is one of the greatest qualities of this cable.

Strengths:
homogeneous sound, details, tru

Weaknesses:
visual look of the cable, no solder on the plugs - Get that fixed!

Similar Products Used:
Nordost SPM mk2, Red dawn


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