Recent content by chungjh

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    Does anyone know where I can get DMA200 transistors?

    Matched with what? The VP mosfets specified should match with the rest of the system since they were used in the original amp, no?
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    Does anyone know where I can get DMA200 transistors?

    Most likely due to heat. They are putting on bigger heatsinks.
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    Does anyone know where I can get DMA200 transistors?

    Stephen Sank diagnosed the problem with my friend's Spectral DMA-200. There are several DMOS FET that are bad or about to go bad. I need 4 DMOS FET model VN0116N5 or VN0120N5. and then also need to replace 4 DMOS FET PN0116N5 or PN0120N5 that are probably near failure. Total 8 pieces. Does...
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    Pass Lab owners - Check in!

    Why do you need XVR1 for this?
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    Spectral DMA 300 RS/SV

    I am considering DMA-250 that has been sold and bought several times; so I don't know its condition. It is supposed to be universal. Do you know roughly how much Spectral charges to refurbish it?
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    Deciding between 260, 360 s2, 250 or 360 s1...help a brother out!

    I am thinking about an old DMA-250. Does anyone know roughly how much Spectral will charge to refurbish it? Is it worth refurbishing it?
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    Spectral DMA 300 RS/SV

    My friend wants to replace his 30 yr old DMA-200. Is it really true that in order to buy a new Spectral amp you have to buy a new Spectral preamp too? Or was that just for DMA-500?
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    Deciding between 260, 360 s2, 250 or 360 s1...help a brother out!

    I have a friend whose DMA-200 is dying. He is thinking about buying a new Spectral amp. I read somewhere that if you want to buy a new amp you also have to buy a preamp to go with it. Is this true? I have trouble believing this.
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    Deciding between 260, 360 s2, 250 or 360 s1...help a brother out!

    It is supposed to be 250W on idle. I am guessing about 10W in class A.
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    Deciding between 260, 360 s2, 250 or 360 s1...help a brother out!

    I got the answer on this. Spectral will not service anything this old.
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    Deciding between 260, 360 s2, 250 or 360 s1...help a brother out!

    My system is not SOTA. Preamp is Dan Sachs tube preamp, Lumin X1 streamer/DAC and Sound Lab ESL speakers. Currently using X350.5 but it generates 600W of heat just on idle in my tiny room: 11 x 9 ft. I was looking at a used Spectral since they generate only 250W and low class A bias. I like the...
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    Deciding between 260, 360 s2, 250 or 360 s1...help a brother out!

    I am not so concerned with power as much as SQ. Some comments indicate that the SQ of 360 s2 or 300RS is noticeably better than 260. Do you agree with this?
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    Spectral DMA-200 advice

    When you say When you say "Yes", did you mean you had it refurbished? Do you think SP 3 is better than the current ARC Pres?
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    Spectral DMA-200 advice

    SP-3? They are ancient. Have you compared them to Spectral preamps for your DMAs? Did you get them refurbished?
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    Deciding between 260, 360 s2, 250 or 360 s1...help a brother out!

    I have Soundlab ESL speakers (86 db) and a tiny room 10x11 ft.
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