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Ampapa A1 Vacuum Tube Phono Preamp/Headphone Amplifier
01 / 08
Ampapa A1 Vacuum Tube Phono Preamp/Headphone Amplifier
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Product Description
Ampapa’s A1 Vacuum Tube Headphone Amp brings a beautiful combination of modern design and vintage tube richness into a desktop preamp that really sings. Suitable for general preamp usage, phono preamp functions, or driving your high-end headphones, the A1 packs the juice and the headroom you’ll need for virtually any listening situation Read More
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keyboard_arrow_downtim273
11
Mar 27, 2025
This looks good, but it's limited because the plate voltage of the tubes is too low which doesn't use the tubes to their full capacity. Look for an amplifier that puts at least 100-200+ volts into the plates of the tubes for them to use their full capacity. You'll know by the large transformer. Yaquin MS23b is one example.
tedhersh
45
Mar 27, 2025
tim273I know that the plate voltage and transformer size is important when comparing tube power amps, but is it a factor phono preamp? I’ve never seen a phono preamp with massive transformers like in tube power/integrated amps.
vanofmonks
5
May 6, 2025
tim273It likely is using a voltage boost converter to boost the 12v up to a more appropriate B+ voltage
(Edited)
rapoon
45
May 23, 2024
For the price, the features of this thing are really impressive + the build quality (next cheapest thing I found was ~$500). At max volume, gain is upper 40's dB (phono) @ 0.6V rms? - correct me if I'm wrong.
Unlike WordsandMusic, I'm not a fan of it's appearance but if you like it, it's a great deal.
(Edited)
InvisibleInk
118
Apr 22, 2024
One hundred and ten greenbacks seems like a ridiculously low price for what this thing can do. If I had a turntable, I'd probably get this thing.
WordsandMusic
362
Apr 22, 2024
Since it’s unprecedented surpass in functions and looking, I might have to get it.
I do actually like the looking.
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