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Hochleistungs CPU

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hochreines Kupfer 18 AWG 
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Rauschfreier Strom​

Stromversorgung mit geringstem Ripple Noise
beste audiophile lineare Netzteile
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Beste Player

beliebige Audioformate
beliebige Player z. B.:Roon für Streaming (Qobuz/Tidal/Radio/SSD)
HQPlayer für Upsampling, PCM zu DSD, beste Filter für den analogen Klang
Raumklangkorrektur (z. B. mit Filter von Acourate)

Lüfterfreies Gehäuse

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Keine Lüfter

High End Speicher

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HQPlayer


Tools

HQPlayer Tools

Interaktive Konfiguratoren für höchste Klangqualität
Jetzt auch mit direkter HQPlayer-Anbindung: rggtools.de

Filter Settings
Modulator-Dither Settings

HQPlayer Filter Settings

Choose filters based on your musical and technical preferences. The recommendations and ranking are for guidance. Try several filters and let your ears decide.

Musical preferences

Any
Any
Any
Frequency response & roll-off
Impulse response & ringing

Technical requirements

Select the matching documented version. HQPlayer confirms actual device availability.

Output mode
High

Music genre

Genre labels come from the HQPlayer filter table and help rank filters by their typical musical suitability.

Any disables genre scoring. Choosing a genre changes the ranking while keeping other filters eligible.

Effect: Ranking

Spatial imaging / Space

Weights filters with a documented HQPlayer focus on spatial imaging. Higher values give this property more weight in the ranking.

0 = Any excludes spatial imaging from the score.

Effect: Ranking

Transients

Weights filters that focus on timing and transient reproduction. Higher values give this property more weight in the ranking.

0 = Any excludes transients from the score.

Effect: Ranking

Tone colour / Timbre

Weights filters with a documented HQPlayer focus on timbre or tone colour. Higher values give this property more weight in the ranking.

0 = Any excludes timbre from the score.

Effect: Ranking

Frequency response, roll-off, and stopband attenuation

The diagram shows how a low-pass filter separates the usable frequency range from the attenuated range. It illustrates the principle without representing any specific HQPlayer filter to scale.

Passband
Frequency range that passes through with as little change as possible. The Pass Frequency marks its upper limit.
Transition
The region between passband and stopband where the response falls. The Cutoff Frequency lies within this region.
Roll-off
Describes how steeply the response falls. A slow roll-off has a wider, gentler transition. Fast, sharp, or very sharp roll-off filters reach the stopband with a narrower, steeper transition.
Stopband
The region where unwanted frequencies are strongly attenuated. The Stop Frequency marks the start of the specified stopband.
Stopband Attenuation
Indicates how strongly signals in the stopband are attenuated. A more negative dB value means stronger suppression.
How this relates to HQPlayer filters

HQPlayer filter descriptions often list Roll-off, transition width, passband, and stopband attenuation. These describe different properties of the filter.

Roll-off describes how quickly the frequency response falls through the transition band. Stopband attenuation describes how strongly unwanted frequencies are ultimately suppressed.

The illustration explains these terms visually. It has no effect on settings or ranking.

Effect: Information

Impulse response, pre-/post-ringing, and musical focus

The diagram illustrates how a filter responds around a short impulse. It shows typical differences among linear, intermediate, and minimum phase. The curves are schematic and represent no measurements of individual HQPlayer filters.

Pre-Ringing
Oscillations that occur before the main impulse. They occur especially in linear-phase filters.
Post-Ringing
Oscillations that occur after the main impulse. Ringing energy can be distributed differently before and after the impulse depending on the filter.
Linear Phase (lp)
Typically a symmetrical impulse response with pre-ringing and post-ringing. HQPlayer filter descriptions often associate this response with a focus on Spatial imaging / Space .
Intermediate Phase (ip)
A compromise between linear and minimum phase. It reduces pre-ringing relative to linear phase, moving some ringing to after the main impulse. Its musical focus is often Space + transients.
Minimum Phase (mp)
Ringing is concentrated after the main impulse, with no pre-ringing. HQPlayer filter descriptions often associate minimum phase with a focus on Transients .
How this relates to HQPlayer filters

Many HQPlayer filters use suffixes such as -lp, -ip and -mp to distinguish their impulse responses. The descriptions often associate each variant with a musical focus: lp → Space, ip → Space + transients, mp → Transients.

These associations describe possible musical characteristics. Perception depends on the filter design, source material, playback chain, and personal preference.

Effect: Information
Schematic low-pass filter frequency response showing the passband, transition, roll-off, and stopband
Schematic impulse response showing pre-ringing, the main impulse, and post-ringing for linear, intermediate, and minimum phase

PCM input rate

Choose the sampling rate of the PCM source. The configurator uses the exact input rate to identify HQPlayer's filter slot and calculate the ratio to the selected output rate.

1x Filter / Oversampling
PCM sources ≤ 50 kHz.
Nx Filter / Oversampling
PCM sources > 50 kHz.

This determines upsampling or downsampling and whether the conversion ratio is integer, a power of two, or non-integer.

Effect: Gatekeeper

Ratio Any filters only

Limits recommendations to filters with the “Any” ratio. These filters also support non-integer ratios between input and output rates, making it easier to switch between input rates and the 44.1 and 48 kHz families.

“Any Up” is excluded. Auto rate family is a separate setting. Other suitability checks and existing fallbacks remain active, especially for manually selected filters.

With Auto Filter enabled, the restriction also applies to automatic filter selection. The Bridge saves it on the server and synchronizes it with the player. In standalone mode, it applies to calculations in this configurator.

Output rate, Auto rate family, and ratios

Auto rate family restricts output rates to integer ratios within the matching rate family when checked. This includes integer upsampling and downsampling and preserves the 44.1 or 48 kHz family. The selected setting is kept when switching between PCM and DSD / SDM.

DSD rate families: For DSD / SDM, Auto rate family can stay enabled if the DAC, driver, and output path support the required family. For example, DSD512 at 22.5792 MHz belongs to the 44.1 kHz family, while DSD512 48k at 24.576 MHz belongs to the 48 kHz family. Choose an output rate supported by your system. The configurator checks filter suitability mathematically. Listing a rate does not confirm device support.

HQPlayer Embedded: The option is called Auto rate family and uses an on/off checkbox. HQPlayer Desktop: the equivalent setting is Adaptive rate and has three states: unchecked requires the requested output rate to work, greyed tries that rate and falls back to a compatible rate if the filter cannot use it, and checked always uses a simple multiple of the source rate. The configurator checkbox represents checked / ON . The Desktop state greyed has no separate mode here.

What Ratio means

Ratio describes which mathematical conversion ratios a HQPlayer filter can process. The configurator derives it from the PCM input and output rates.

Any
Any ratio for upsampling or downsampling.
Integer
Integer ratios for upsampling or downsampling. For example, 44.1 → 88.2 kHz = 2× is valid, while 44.1 → 96 kHz is not an integer ratio.
Integer up
Integer ratios for upsampling only.
Any Up
Any ratio for upsampling only.
2^x
Powers of two: 2×, 4×, 8×, 16×, 32×, etc., for upsampling or downsampling.
2^x up
Powers of two for upsampling only.
1:1
No sample rate conversion.
PCM → PCM examples
88.2 kHz, Auto rate family ON
Down: 44.1 kHz. Up: 176.4 → 352.8 → 705.6 → 1,411.2 → 2,822.4 kHz.
96 kHz, Auto rate family ON
Down: 48 kHz. Up: 192 → 384 → 768 → 1,536 → 3,072 kHz.
Auto rate family OFF
Switching rate families and downsampling are also possible if the selected filter supports the resulting ratio.
PCM → DSD examples
88.2 kHz, Auto rate family ON
DSD64 (2.8224 MHz) to DSD2048 (90.3168 MHz), all in the 44.1 kHz family.
96 kHz, Auto rate family ON
DSD64 48k (3.072 MHz) to DSD2048 48k (98.304 MHz), all in the 48 kHz family.
Auto rate family OFF
Both DSD rate families are available for selection. The configurator checks whether the ratio is integer, a power of two, or non-integer and whether the filter supports upsampling or downsampling.

Effect: Output-rate preselection + ratio eligibility

Apodizing

Apodizing describes HQPlayer's apodizing classification for the filter. This selector uses that classification.

Yes
Apodizing filters only. HQPlayer's “½” classification also qualifies.
No
Only filters marked Apodizing = N.
Any
Apodizing does not restrict eligibility.

Automatic preselection: The source rate determines the initial apodizing selection.

1× PCM ≤ 50 kHz
Initial selection: Yes. Apodizing is preferred to reduce possible upstream filtering or mastering artefacts.
N× PCM > 50 kHz
Initial selection: No. High-resolution sources can also contain mastering errors or artefacts. If you suspect this, you can manually set Apodizing to Yes .

The initial selection is a recommendation that you can change at any time. Effect: eligibility.

Apod threshold

This selection applies to filter recommendations in this view. The Bridge initializes it from the current Apod state. You can change it manually in either mode. Select “Follow live setting” to resume following the Bridge.

No preference
The regular Apodizing selection applies.
10 or higher
Only apodizing filters are recommended, including those classified as Y or ½ by HQPlayer.
100 or higher
Suitable aclean filters come first. The regular scores determine the order within each group.

Output mode

Selects the HQPlayer filter table used for recommendations.

PCM
Filters for PCM output. Output rates from 44.1 kHz to 3,072 kHz are available for selection.
DSD / SDM
Oversampling filters for DSD / SDM output. Both the 44.1 and 48 kHz DSD rate families are listed up to DSD2048.

Only filters for the selected output mode are considered.

Effect: Gatekeeper

Technical quality

HQPlayer rates each filter's technical quality relative to the others in the table on a scale from 1 to 5. The values are guidance rather than absolute measurements.

The selection sets a minimum requirement: Level 4 allows only filters rated 4 or 5 by HQPlayer. 0 = Any disables this minimum requirement.

The chosen quality level also contributes to the ranking of eligible filters.

Effect: Eligibility + ranking

Version history

Version 3.1.0T
DE / EN language selection and local language packs.
Version 3.0.3
The Apod threshold appears below Apodizing in both variants. The live Bridge setting can be overridden for a manual calculation.
Version 3.0.2
Manual Apod thresholds without the Bridge and catalogue corrections based on Embedded Engine 6.3.1 and the HQPlayer manuals.
Version 3.0.1
Recommendations display the published rule version, revision, and package ID they actually used. Filter data and ranking weights are unchanged.
Version 3.0.0
Three new aclean filters, versioned technical references for Embedded and Desktop, and current mode-specific ratio properties. The standalone configurator offers a reference selector. In the Bridge, the shared, confirmed device state applies. The update preserves existing ratings and settings and removes CPU profile maintenance.
Version 2.9.0
Help next to “Auto rate family” explains both DSD rate families and the required device support. The setting is preserved when switching between PCM and DSD / SDM. Both help controls open the same dialog. Filter data, scoring rules, and shared state handling are unchanged.
Version 2.8.1
“Ratio Any filters only” limits recommendations to filters explicitly classified as Any. The Bridge and player share a persistent setting. The standalone version uses it for local calculations. Input rate, output mode, and output rate follow confirmed Bridge state while preserving manual drafts. Shared state needs no extra Q1 queries, and obsolete calculation responses are discarded. The new Bridge integration requires Bridge Plugin 4.70.2 and Server 4.70.1.
Version 2.8.0
Versioned, immutable rule packages for Bridge Server 4.60.0. The standalone filter tool uses the same rule engine. The upgrade preserves existing filter and ranking data.
Version 2.7.0-fixed1
Technical HQPlayer identity was added. Filter data includes Q2 indices, including separate indices for SDM 2s variants. MQA names now match current Q2 names. Recommendation metadata and standalone operation are unchanged.
Version 2.6.3.3
The ringing illustration was clarified. It explains linear phase with a focus on space, intermediate phase on space and transients, and minimum phase on transients. The original Grigg Audio logo was repositioned in the illustration.
Version 1.6.3.1
The two filter illustrations have separate compact frames in the musical preferences panel. Thumbnails stay within the existing panel size. Either the magnifier or thumbnail opens a larger image. Both images include the Grigg Audio logo, source, and date.
Version 1.6.3
Illustrations explain frequency response, roll-off, stopband attenuation, and impulse response with pre- and post-ringing. Both can be enlarged and have contextual help.
Version 1.6.2
Auto rate family and automatic preselection of matching rate families were added to the output-rate logic.
Version 1.6.1
Radio buttons for DSD / SDM and PCM replace the output-mode dropdown.
Version 1.6.0
The configurator derives conversion ratios automatically from PCM input and output rates. It identifies upsampling and downsampling, as well as integer, power-of-two, and non-integer ratios, and offers filters that support the conversion.
Initial version (beta through 1.5.1)
Development and testing of the filter database, technical eligibility checks, musical weighting, user interface, and recommendation logic.

Data sources: HQPlayer Embedded Configuration Help 6.1.0, confirmed Engine 6.3.1, and Desktop Manual 6.2.0. The selected reference version determines version-specific technical properties.

HQPlayer Filter Settings by Grigg Audio Solutions

HQPlayer Modulator-Dither Settings

Choose technical and quality requirements for modulators with DSD / SDM output or dither and noise shaping with PCM output. The recommendations and ranking are for guidance. Try several options and let your ears decide.

Quality preferences

Any
Any

Technical requirements

Technical reference: HQPlayer Embedded 6.2.0.

Output mode

Digital volume control

Specifies whether suitability for digital level adjustment is considered when choosing a DSD / SDM modulator.

No
Digital volume control suitability is ignored.
Yes
Explicitly unsuitable modulators are excluded. Neutral or unclassified options remain eligible. Explicitly suitable options rank higher.

Effect: Eligibility + ranking

Technical quality

Sets the minimum technical quality for the modulator on a scale from 0 to 5.

0 – Any
No minimum technical quality.
1–5
Modulators below the selected quality level are excluded.

Technical quality also contributes to the ranking of eligible candidates.

Note: These scores are estimates because suitable data is unavailable.

Effect: Eligibility + ranking

Prefer lower processing load

Preferring lower processing load can help find modulators that run reliably on your hardware. Increase the preference to rank less demanding alternatives higher if certain modulators are too demanding. The technical quality setting still applies as a separate minimum requirement.

0 – Any
Processing load does not affect the ranking.
1
Weak preference for lower processing load.
2
Moderate preference for lower processing load.
3
Clear preference for lower processing load.
4
Strong preference for lower processing load.
5
Maximum preference for lower processing load. Eligible modulators are ranked solely by processing efficiency.

Note: These scores are estimates because suitable data is unavailable.

Effect: Ranking

DAC device

The DAC list is based on HQPlayer DAC correction profiles published by Signalyst. It covers only a subset of the DACs that can work with HQPlayer. The PCM and DSD views share the same device selection.

Device's DSD 48k specification is separate from correction profiles. Existing entries without independent device documentation are marked accordingly. An asterisk in Signalyst’s table limits the correction profile to the 44.1 kHz family. It says nothing about general hardware support.

Correction profile for this rate checks the exact DSD output rate in Hz, including its rate family. The display describes a published profile and does not indicate whether correction is active in HQPlayer. “Unverified” means the stored record has no verified exact formats.

NOS (Non-Oversampling) indicates that the DAC’s internal digital filter or oversampling can be bypassed and, according to the source, the signal reaches the converter bit-perfect. PCM and DSD are listed separately. An asterisk (*) indicates that modified firmware is required.

DAC correction source: Signalyst – DAC correction support, as of 4 November 2026 (attached reference).

NOS source: Audiophile Style – Which DACs bypass the digital filter?, as of 3 January 2026.

Effect: Recommendation for HQPlayer settings

DAC device

The DAC selection controls the device-specific guidance and recommendations for PCM output. The same device is automatically selected in the DSD / SDM view. If the device has a known DAC converter , the tool selects it automatically.

The left panel then displays NOS / bit-perfect for PCM, Correction profile for this rate, DAC Bits and PCM gain compensation .

Correction profile for this rate is checked for the exact PCM output rate in Hz. 705.6 / 768 kHz and 1411.2 / 1536 kHz are separate formats. The display does not confirm active HQPlayer correction.

NOS (Non-Oversampling) indicates that the DAC’s internal digital filter or oversampling can be bypassed and, according to the source, the PCM signal reaches the converter bit-perfect.

DAC correction source: Signalyst – DAC correction support, as of 4 November 2026 (attached reference).

NOS source: Audiophile Style – Which DACs bypass the digital filter?, as of 3 January 2026.

Effect: Device-specific recommendations and values for HQPlayer settings

DAC Bits

Shows the usable PCM word length of the selected device from the DAC database. If there is no reliable value, the plugin displays Auto , which corresponds to HQPlayer’s value 0 and uses the word length reported by the audio device.

HQPlayer uses DAC Bits to set the dither or noise-shaping depth. This field provides a device-specific recommendation without accepting manual input.

Effect: Recommendation for HQPlayer settings

DAC converter

Identifies the D/A converter or converter architecture used for PCM. The known converter is selected automatically. If no mapping is available, the value is Unknown .

The selection determines the appropriate PCM gain compensation. The result is displayed in the left panel.

For PCM, the DAC converter also determines PCM gain compensation. ESS Sabre models are grouped by their four-digit chip model: through ES9038 (5th-order DSD preferred), from ES9039 onward (7th-order DSD preferred) and model unknown. For known DAC devices, the recorded ESS model number determines the group automatically.

For DSD / SDM, this ESS rule only affects the Ranking. Through ES9038, modulators of 5th order or lower get +10 points and higher orders get −10. From ES9039 onward, modulators of 7th order or higher get +10 points and lower orders get −10. All orders remain eligible. Unknown ESS model numbers have no effect.

This is based on advice from Jussi Laako (Signalyst) favouring 5th order through ES9038PRO and 7th order from ES9039 onward. It is not an absolute rule. For example, 7th order at DSD512 may work well with older ESS converters. For Class D or valve amplifiers with these older converters, he advises against 7th order.

Effect: PCM gain compensation

PCM gain compensation

The left panel shows the HQPlayer gain compensation for the selected or automatically detected DAC converter.

PCM and DSD may produce different output levels depending on the DAC. Appropriate PCM gain compensation helps avoid loudness jumps when switching between PCM and DSD.

Effect: Recommendation for HQPlayer settings

Output mode

Specifies which HQPlayer methods to consider. The selection also changes the quality settings shown.

DSD / SDM
Evaluates DSD / SDM modulators and displays their quality preferences.
PCM
Evaluates dither and noise shaping for PCM output and displays the corresponding DAC and PCM settings.

The selected DAC device is shared by the DSD / SDM and PCM output modes. Changing modes does not require selecting the device again.

Effect: Eligibility + interface

DSD output rate

Sets the desired DSD / SDM output rate. Some modulators have a minimum supported rate and are excluded below it.

For example, a modulator with a DSD1024 minimum can be used at DSD1024 or higher supported rates, but not at DSD512 or lower.

Effect: Eligibility

PCM output rate

Sets the desired PCM output rate used when recommending dither and noise shaping.

The tool also checks whether the Signalyst DAC correction profile for the selected device supports that exact output rate in Hz. The 705.6 / 768 kHz and 1411.2 / 1536 kHz pairs are listed separately.

The displayed pairs represent the 44.1 kHz and 48 kHz families. Above 768 kHz, there is currently no shared dither policy with the Bridge Server. At those rates the tool omits automatic dither recommendations, while still reporting exact correction profile support. This is not a technical HQPlayer limit.

Effect: Eligibility + DAC correction display

Version history

Version 3.1.0T
DE / EN language selection and local language packs.
Version 3.0.0
Exact correction profile rates, sources, and reference dates are tracked independently of hardware specifications. A targeted migration preserves activation, custom data, and ratings. Original AHM4B descriptions and earlier editorial additions are stored separately. The reference is Embedded 6.2.0. Desktop differences require separate evidence. The update adds neither automatic correction activation nor HQPlayer requests.
Version 2.9.0-fixed2
PCM dither and noise shapers and SDM modulators now carry their current HQPlayer Q2 index. Names remain reference and diagnostic values. Ranking, DAC, and rate rules are unchanged.
Version 2.8.6-fixed1
The DAC admin list now shows existing, separately stored PCM correction rates in a dedicated Correction PCM column directly before Correction SDM . DAC data, database schema, JSON, ranking, and Bridge logic are unchanged.
Version 2.8.6
DAC database update: LAIV Harmony DAC was added as a separate device and LAIV Harmony µDAC was updated. Both are listed with 18 bits and discrete PCM R2R conversion. Independent measurements confirm PCM NOS. DSD is converted to PCM internally, so DSD NOS is No. DSD 48k remains unverified. The Harmony µDAC retains Signalyst PCM correction rates of 352.8 / 384 / 705.6 / 768 / 1411.2 / 1536 kHz. SDM correction is unlisted, and no Signalyst correction profile is listed for the Harmony DAC.
Version 2.8.5
Reconciled with HQPlayer Embedded 6.1.0 Configuration Help. The modulators AHM5EC5L and AHM7EC5L are no longer listed by HQPlayer 6.1.0 and were removed from the modulator database. Upgrading the database removes both entries from existing installations. Dither and noise shapers and existing DAC Bits values were checked against the 6.1.0 help and are unchanged.
Version 2.8.4
Added a fresh Q1 raw data request through /api/v1/q1. The plugin reads the output mode and active output rate from the full Q1 response and applies those settings. The existing /api/v1/rates request remains the separate source of available PCM / SDM rates.
Version 2.8.2 fixed2
The processing loads of four AHMxEC4B/8B modulators were calibrated to 1.9 / 2.0 / 2.1 / 2.2 based on comparison measurements. Technical quality was corrected to 4.75/5 for AHM5EC4B and 5.00/5 for AHM7EC4B. AHM7EC8B retains 5.00/5. Explicit catalogue quality scores now take precedence over the heuristic.
Version 2.7.10
DAC converter lists are synchronized more reliably. The bundled reference database supplies missing converter profiles. Migration normalizes existing converter records.
Version 1.7.7
DAC converter mappings were checked and completed for all device profiles. Known discrete, AKM, ROHM, and Holo conversion paths are now selected correctly. “Unknown” is reserved for ambiguous or unsupported paths. Topping Centaurus uses the Holo Audio PCM and DSD profiles.
Version 1.7.6
The DAC database now consistently separates PCM and DSD architectures and chip or module information. Holo Audio and Topping Centaurus use PCM R2R and a separate DSD resistor-ladder or vector-step network. Technical details appear below the quality settings according to output mode and are marked as indicative and revision-dependent.
Version 1.7.5
NOS / bit-perfect classification for identified ESS Sabre converters was refined. Their PCM and DSD paths are marked “No” based on Jussi Laako’s technical statement that the ESS modulator or internal DSP cannot be fully bypassed. The Audiophile Style NOS list remains separate.
Version 1.7.4
The DAC database adds and clarifies PCM and DSD chips and architectures for numerous devices. Grouped records are split by model or revision where reliable. TEAC UD-507 and SMSL D1 were added. NOS / bit-perfect data remains separate and follows the Audiophile Style list from 3 January 2026. Firmware notes were retained.
Version 1.7.3
ESS ranking was refined. The preferred DSD modulator order still receives +10 points and an alternative order now receives −10 points. Converter labels identify this as a DSD recommendation. PCM and DSD converters and chips are listed separately in the database and shown in the admin table.
Version 1.7.2
The ESS modulator rule now uses only the four-digit ESS chip model, based on Jussi Laako’s reply. Through ES9038, 5th order or lower receives a +10 bonus. From ES9039, 7th order or higher receives it. The previous eligibility restriction was removed. HyperStream fields were removed from the DAC database. The converter list uses ESS Sabre through ES9038, from ES9039, or unknown model.
Version 1.7.1
PCM gain compensation wording for Texas Instruments / Burr-Brown now specifies that it depends on the selected analogue FIR setting in DSD mode. Database and ranking are unchanged.
Version 1.7.0
The DAC database adds converter families, separate PCM and DSD data and architectures, ESS HyperStream classification, and separate conversion paths. The converter follows the active output mode. Known DAC devices and their corresponding PCM or DSD converters stay linked. At the time, the HyperStream classes below IV and IV or above controlled modulator eligibility. Unknown was unrestricted.
Version 1.6.4
DAC database 1.7.1 grouped ESS converters into HyperStream below IV, IV or above, and unknown. Eligibility used those classes and left unknown unrestricted. Ferrum WANDLA (ES9038PRO) and Accuphase DAC-60 (ES9016K2M) were linked to HyperStream below IV based on manufacturer and ESS information.
Version 1.6.3
DAC database 1.7.0 added separate PCM and DSD converter data, ESS HyperStream generation, and front-end DSP. The DAC converter became available in the DSD view and was synchronized with PCM and known device mappings. A preliminary ESS HyperStream eligibility rule for modulator order was added.
Version 1.6.2
PCM gain compensation is also displayed for a manually selected converter when no device is selected.
Version 1.6.1
DSD512 became the default. DSD rates show MHz values for both rate families. PCM now defaults to 705.6 / 768 kHz and the selection was extended to 2822.4 / 3072 kHz.
Version 1.6.0
DAC device management was expanded with a central database, mappings between DAC devices and converters, separate PCM and DSD NOS / bit-perfect information, DSD 48k support, Signalyst DAC correction data, DAC Bits, and PCM gain compensation. PCM and DSD / SDM share the selected device.
Initial version (beta through 1.5.6)
Development and testing of the modulator, dither, and noise shaper database, ranking, eligibility rules, and user interface.

Data sources: HQPlayer Embedded Configuration Help 6.2.0 · DAC correction profiles dated 4 November 2026

HQPlayer Modulator-Dither Settings by Grigg Audio Solutions