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  1. Valve Amp

    New Desktop DAC/amp from IMS

    Yes the phono stage utilizes the Burr Brown OPA2134 as the phono preamp, same chip as the headphone stage so very quiet device.
  2. Valve Amp

    New Desktop DAC/amp from IMS

    Hi Folks I hope you don't mind hopping in here and answering the DAC question. Most DAC circuits use in fact two DAC PCM5102A as the Slave. The SA9227 is the critical device here as far as bandwidth and resolution.
  3. Valve Amp

    TRINITY - PHANTOM Series - New thread + WORLDS FIRST PUSH PULL HYBRID IEM!*

       
  4. Valve Amp

    World's first portable Hybrid Valve Headphone Amplifier (with a footprint smaller than most cellphones).

    Hi Surge74,   Sorry to hear you haven't been able to get in touch with me by email. The easiest way is via our website:  www.ims-nz.com   At the bottom of the page is where you can write your message and send to me. I check me emails though out the day. I think you may have tried to contact me...
  5. Valve Amp

    Reply to review by 'valve amp' on item 'IMS Hybrid Valve Headphone Amplifier (HVA)'

    It's not reducing the resolution to 16 bit- see above calculations. Furthermore, the master DAC chip, SA9227 connects to the digital source at the full 24 bit or 32 bit resolution no matter where you set volume control on your PC or Mac. Even if you turn it down to 50% the DAC chip still...
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  6. Valve Amp

    Reply to review by 'valve amp' on item 'IMS Hybrid Valve Headphone Amplifier (HVA)'

    Hi Paul- Yes I agree the above figures are purely technical for comparison. The resulting sound quality is dependent on many other factors and is very subjective. Glad you're loving the amp! 
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  7. Valve Amp

    Reply to review by 'valve amp' on item 'IMS Hybrid Valve Headphone Amplifier (HVA)'

    Just to add my 2 cents worth: Turning the digital drive volume down to say 80% 'wastes' very little bit depth. To do the maths:  16 bit, i.e. CD quality = 65,546 volume steps. With the DAC set to 24 bit, which is what many people will use = 65,777,216 volume steps. If you 'waste' 20% due to...
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