Topics
Reconstruction filters and timing
- Sampling theory and ideal reconstruction 153
- Transient timing error from reconstruction 164
- WTA filter algorithm and coefficient design 176
- Tap length and diminishing returns 357
- Filter stage architecture and oversampling rates 92
- Pre-ringing, phase and rival filter designs 117
- Decimation, aliasing and sample-rate conversion 115
Noise shaping, accuracy and conversion hardware
- Noise shaper design and resolution 176
- Small-signal accuracy and resolution 197
- Noise floor modulation 209
- Re-quantization, truncation, dither and word length 92
- Pulse array DAC 96
- Other DAC architectures (R2R, delta-sigma, chips, 1-bit) 182
- FPGA implementation and processing hardware 223
Upscaling and the M Scalers
- Why upscale, and why a separate scaler 47
- M Scaler and Quartet settings and operation 41
- Pairing a scaler with a DAC 88
- Software and source-side upsampling 47
Inputs, sources, cables and clocking
- Choosing and comparing inputs 201
- Source devices, streamers and networks 102
- Playback software, drivers and bit-perfect setup 68
- Dual BNC, dual data and DX links 86
- Cables, adaptors and ferrites 166
- Jitter, clocks and the DPLL 130
RF noise, grounding and power
- RF noise: mechanisms and audibility 249
- Ground loops, galvanic isolation, earthing and mains 263
- Power supplies and battery packs 291
- Internal batteries, charging and desktop mode 133
- Add-on tweaks and modifications 48
Analog stage, outputs and amplification
- Analog output stage design 177
- Passive components and physical construction 92
- Driving headphones and IEMs 116
- Balanced vs single-ended 87
- Volume, gain and output level 151
- Pre-amps, power amps and amplifier choice 51
- Driving loudspeakers directly 72
- Power amplifier and speaker-drive design 82
Features, settings and controls
- User filter settings and the HF filter 86
- Crossfeed and spatial processing 51
- EQ, tone controls and room correction 123
- Controls, indicators and remotes 90
- Latency, video and surround 75
Formats, recordings and ADCs
- DSD: playback and DSD vs PCM 160
- Sample rates, hi-res and bit depth 79
- MQA, lossy codecs and streaming services 37
- Recordings, mastering and the production chain 174
- Davina and ADC design 195
Perception and sound character
- Auditory processing: how the brain hears 218
- Transients, rhythm and flow 107
- Depth and soundstage 252
- Timbre, pitch and instrument separation 139
- Tonal character as a diagnostic 209
- Hearing limits and hearing health 33
- Burn-in, warm-up and brain break-in 41
Evaluation method and design philosophy
- Listening test methodology 361
- Measurements, test equipment and simulation 254
- Measurement vs listening 144
- Error classes and which are audible 40
- Transparency, musicality and design goals 257
Owning, choosing and caring for the products
- Product comparisons and upgrade paths 102
- Specifications and feature facts 122
- Headphone, IEM and speaker pairing 78
- Watts's own systems 173
- Travel and portable use 75
- Rooms and system setup 20
- Heat, thermal protection and stacking 65
- Leaving it on, standby and reliability 31
- Dropouts, clicks and lock problems 48
- Faults, repairs, warranty, safety and updates 120
Watts, Chord, community and miscellany
- Future products and project status 451
- Development history of released products 311
- Watts's career and design history 233
- Watts and Chord Electronics 142
- Shows, seminars and presentations 127
- Forum conduct, community and shared material 81
- Critique of industry claims and audiophile myths 80
- Watts's music and concerts 58
- Personal and off-topic 153