Thread: Lyngdorf RP-1
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Old 04-20-2017, 05:46 PM
Vmax Vmax is offline
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Originally Posted by substance View Post
Sorry for keep on hijacking the men220 thread but as an electrical engineer, I understood nothing from vmax's explanation. Torodidal power supply has nothing to do with volume control and volume control done in digital domain isn't desired as it will reduce bits to reduce volume.

It loos like the lyngdorf tdai2200 has digital inputs and a single digital coax output. This could be potentially used as a digital loop through. It is unclear the unit outputs processed signal rather than a pass through.

Men220 could be modded for digital in and out. It would be an interesting project.
Yes the inputs can be processed digitally and have room correction. They are output to Tos link digital out and analog RCA with volume changes or unregulated. User choice. The TDAI also has amplified outs to drive speakers or sub woofers. The outputs can be set individually as full range or for speaker, sub as active crossover.

Here is explanation of how TDAi or DPA-1 work.
The power supply is designed with Holmgren toroidal transformers. The same transformers are used in all three components. As an interesting feature, instead of using a normal attenuator to control volume, Lyngdorf Audio’s True Digital Amplifiers can be thought of as D to A converters powerful enough to drive speakers. Unlike conventional Class D amps which use Pulse Width Modulation (PWM), True Digital amps convert the PCM signal directly to the PWM signal producing a number of significant advantages. One such advantage is that the power supply actually works as the volume control over almost its entire range (and certainly the range where it matters). Conventional Class D amps sacrifice bits to lower the volume, throwing out the detail and dynamic
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