Posted October 13, 200816 yr Admin Two things, we have been doing a lot of old school amplifier upgrading lately and it seems that so many guys do not want the overseas junk but would rather upgrade their older amps.$49 no fault found, $89 to repair and phone estimate on those badly blown amplifiers.We do the whole deal, BB upgrade where possible and if requested, capacitor upgrades, Mosfet and output transistor upgrades and even change the power transformer for better regulation and bottom end "slam".We currently do about 4-6 repairs a day but would like to increase this as so many guys send their amplifiers to shops who mess them up even further.Finally Zed will introduce new amplifiers BUT not what you think.I have completed the design of a ultra high quality class D and on my listening tests it rivals my class A-B designs.The whole idea of class D is small, light weight, more efficient and less expensive than Class A-B Dollar per watt.RegardsSteve
October 14, 200816 yr Author Admin wish they weren't going to be class dLast I talked to Stephen, he said he is taking a different approach then other full range class-D's to improve the THD I believe.
October 14, 200816 yr I'll have to hear it to believe it, but i do hope they are as good or better than their old bb upgraded amps
March 22, 200916 yr I'll have to hear it to believe it, but i do hope they are as good or better than their old bb upgraded ampsIf you can tell the difference between an AB and a D class amp that have identical THD numbers and power ratings, I've got oceanfront property in Montana that I'd love to sell you.Comes with free $50,000 dollar RCA's. All smart-assed comments aside, I hope they continue Stephen's legacy of making amazing amplifiers for the money.Kef
March 22, 200916 yr I'd almost like to send in my USAcoustics to be upgraded, but I can't see sending in perfectly good working amps just to have them upgraded.
March 25, 200916 yr Stephen, I belive in your sound quailty amps, but if there anythng like the alpine pdx or the new jl's please tell me your will sound way better. I just got back into the audio scene last year. I tried to purchage a couple of yours but they where gone, so I bought two alpine pdx's. While I love the size, the power and sound isnt the best. Please keep your roots. Hell what am I saying....I'll just have to trust you, as I'll be selling my alpine's to purchage yours.
March 25, 200916 yr I have two questions... Maybe Mr Mantz can chime in... Is the 2 channel a dual mono? Might be interesting to see a Full Range Class D dual mono I am looking for a subwoofer amp but I can't seem to find it... Have heard/tried quite a few class D and they ALL have the same problem: They seem to be lacking power in the real deeeeeeep bass range (some amps even had regulated power supply which delivers the same RMS with a low or high voltage). I am pretty set to use a DLS A6... unless Kelvin
March 25, 200916 yr I would say if anyone can do a class D right it would be Stephen. He has mentioned to me some pretty interesting things about the new amps and he will be doing things no one else is doing. So different, he is ggoing with epoxy boards to conceal layout to prevent copying.
March 25, 200916 yr Author Admin Stephen, I belive in your sound quailty amps, but if there anythng like the alpine pdx or the new jl's please tell me your will sound way better. I just got back into the audio scene last year. I tried to purchage a couple of yours but they where gone, so I bought two alpine pdx's. While I love the size, the power and sound isnt the best. Please keep your roots. Hell what am I saying....I'll just have to trust you, as I'll be selling my alpine's to purchage yours.From what I have heard and have read, I believe he is taking a different approach then the PDX design that will by-pass some of the noise issues they have. I have not heard them, but the new JL's are supposed to be very good (yes, half of what I read about them were from Manville himself), but it would be a very cool test to put the new ZED 2 channel against the JL HD 2 channel.
March 26, 200916 yr I'd almost like to send in my USAcoustics to be upgraded, but I can't see sending in perfectly good working amps just to have them upgraded. I'd love to see how he could better a USA series amp...
March 26, 200916 yr I'd almost like to send in my USAcoustics to be upgraded, but I can't see sending in perfectly good working amps just to have them upgraded. I'd love to see how he could better a USA series amp... Oh no doubt. I almost think I can get more power out of them as mine use the same boards as a higher model. At least that is the way I see it.Pics of mine are here. http://www.soundsolutionsaudio.com/forum/i...showtopic=24973Where the comparison between the model numbers on the boards are like this.USA2200F_____to___Model 600200X2 @4ohms to 300X2 @4ohms300X2 @2ohms to 400X2 @2ohmsUSA2300F_____to___Model 1000300X2 @4ohms to 500X2 @4ohms400X2 @4ohms to 700X2 @4ohms Edited March 26, 200916 yr by bromo
July 31, 200916 yr I have two questions... Maybe Mr Mantz can chime in... Is the 2 channel a dual mono? Might be interesting to see a Full Range Class D dual mono <img src="http://www.soundsolutionsaudio.com/forum/public/style_emoticons/<#EMO_DIR#>/lockd.gif" style="vertical-align:middle" emoid=" " border="0" alt="lockd.gif" /> I am looking for a subwoofer amp but I can't seem to find it... Have heard/tried quite a few class D and they ALL have the same problem: They seem to be lacking power in the real deeeeeeep bass range (some amps even had regulated power supply which delivers the same RMS with a low or high voltage). I am pretty set to use a DLS A6... unless The new two channel KRONOS can be used as either a traditional two channel amplifier OR as a sub woofer amplifier. It has many unique features.For those of you who are skeptical of class D amplifiers, please do not be. Great strides have been made over the years and the SQ our class Ds is equal tothat of our class A/B amplifiersStephen MantzZed Audio Corporationwww.zedaudiocorp.com
July 31, 200916 yr I have two questions... Maybe Mr Mantz can chime in... Is the 2 channel a dual mono? Might be interesting to see a Full Range Class D dual mono <img src="http://www.soundsolutionsaudio.com/forum/public/style_emoticons/<#EMO_DIR#>/lockd.gif" style="vertical-align:middle" emoid="" border="0" alt="lockd.gif" /> I am looking for a subwoofer amp but I can't seem to find it... Have heard/tried quite a few class D and they ALL have the same problem: They seem to be lacking power in the real deeeeeeep bass range (some amps even had regulated power supply which delivers the same RMS with a low or high voltage). I am pretty set to use a DLS A6... unless KelvinNo KRONOS is a dual channel amplifier with a single power supply
December 23, 200915 yr i have a old PPI a1200 with a blown power supply, and some burnt fets. due to low voltage. and i also have the ap404 with some static in the output section, can this be repaired by u, and if so how do i get it to you.
December 23, 200915 yr Author Admin i have a old PPI a1200 with a blown power supply, and some burnt fets. due to low voltage. and i also have the ap404 with some static in the output section, can this be repaired by u, and if so how do i get it to you.Best would be to email zedaudio "@" aol.com
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