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    All boards are sold in kits with all the onboard components.

    Buying the components from a supplier yourselves probably costs you more than buying a complete ...

    When you order a kit by the PayPal shopping cart you will receive an email with instructions on where to find your documentation. If your payment is done in another way, it may ...

    The models that have a "-PS" at the end of the name are models which have a power supply (PS) on the amplifier board. Essentially this means there are rectifiers and bulk caps integrated / included on the PCB, and usually also "housekeeping" ...

    There are BOMs available to buyers of the kits.

    There are also BOMs for the Tripath demo, reference amps PDFs available on the site. ...

    Mostly surface-mount:

    • AMP1x, AMP2, AMP3x, AMP4-PS, AMP8, AMP11, AMP15-PS, Truepath

    Mostly hole-mount:

    • AMP5, AMP6x, AMP7, AMP9x, AMP10x


    If you are not familiar with soldering surface mount components, this is a chance to learn! ...

    I get this question now and then. Is there a simple answer?
    First what are they to start with?
    Hole mount components are the traditional components, with wire leads that are soldered through a hole in the PCB.
    ...

    Yes, for the output filters, if they are needed for you kit (otherwise they are a ready made-component).

    No, for mains power toroidal transformers ...

    Yes and no.

    None of the 41Hz audio amps are digital in the sense of taking digital inputs. They all take analogue inputs. There are other switching ("D-class") amplifiers with integrated ...

    The AMP1x boards, and AMP2, layout is identical to the Tripath boards but there are differences in choice of components. I generally try to use higher spec components ...

    On a limited scale, yes.
    One of the ideas with my kits is to provide high quality amp kits for your own assembly, at very reasonable prices to DIY:ers. ...

    One of the big advantages with a switch mode amplifier ("D-class" or "T class") are the low losses and therefore the relatively small heat sink requirements.

    Especially at partial load, the difference is huge compared to a traditional A/B class amplifier. ...