Scaler EQ crashes Reaper at 176400khz

I have always experienced crashes with Reaper when using Scaler EQ at 176.4k.

Here are some windows 11 logs. New Reaper.

Log Name: Application
Source: Windows Error Reporting
Date: 11/06/2026 00:00:41
Event ID: 1001
Task Category: None
Level: Information
Keywords:
User: GB-5950X\grego
Computer: GB-5950X
Description:
Fault bucket 1885622827698963368, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: reaper.exe
P2: 7.7.4.0
P3: 6a26f475
P4: StackHash_6464
P5: 10.0.26100.8328
P6: 0022b8e0
P7: c0000374
P8: PCH_91_FROM_ntdll+0x00000000001627F4
P9:
P10:

Attached files:
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.5e185018-3a62-4962-ba33-62e28a1cbc24.tmp.dmp
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.b1593aa9-b264-4a40-98e1-6a76f3713dc3.tmp.WERInternalMetadata.xml
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.db22d930-14d3-4864-85d8-82d7acb702f6.tmp.csv
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.d083b823-e53b-47d8-83b2-20f6fdadb5af.tmp.txt
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.6a01f295-c6ab-444e-b43e-0b11c72fecda.tmp.xml

These files may be available here:
\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_reaper.exe_b6f3c533b470c32fc6f9f6bb639f6c5b33ed1b_70d6da33_8a1427f4-f579-430b-80dc-343ae0cedcd3

Analysis symbol:
Rechecking for solution: 0
Report Id: fb5855e0-190c-4f44-82cc-91b0f1fad658
Report Status: 268435456
Hashed bucket: 9f39de3d19c33fdb9a2b13f8a95d43a8
Cab Guid: 0
Event Xml:

1001
0
4
0
0
0x8000000000000000

176781

Application
GB-5950X

1885622827698963368
4
APPCRASH
Not available
0
reaper.exe
7.7.4.0
6a26f475
StackHash_6464
10.0.26100.8328
0022b8e0
c0000374
PCH_91_FROM_ntdll+0x00000000001627F4

\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.5e185018-3a62-4962-ba33-62e28a1cbc24.tmp.dmp
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.b1593aa9-b264-4a40-98e1-6a76f3713dc3.tmp.WERInternalMetadata.xml
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.db22d930-14d3-4864-85d8-82d7acb702f6.tmp.csv
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.d083b823-e53b-47d8-83b2-20f6fdadb5af.tmp.txt
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.6a01f295-c6ab-444e-b43e-0b11c72fecda.tmp.xml
\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_reaper.exe_b6f3c533b470c32fc6f9f6bb639f6c5b33ed1b_70d6da33_8a1427f4-f579-430b-80dc-343ae0cedcd3

0
fb5855e0-190c-4f44-82cc-91b0f1fad658
268435456
9f39de3d19c33fdb9a2b13f8a95d43a8
0

Log Name: Application
Source: Application Error
Date: 11/06/2026 00:00:39
Event ID: 1000
Task Category: Application Crashing Events
Level: Error
Keywords:
User: GB-5950X\grego
Computer: GB-5950X
Description:
Faulting application name: reaper.exe, version: 7.7.4.0, time stamp: 0x6a26f475
Faulting module name: ntdll.dll, version: 10.0.26100.8328, time stamp: 0x0022b8e0
Exception code: 0xc0000374
Fault offset: 0x0000000000117175
Faulting process id: 0x5F0C
Faulting application start time: 0x1DCF92C0F283DEF
Faulting application path: C:\Program Files\REAPER (x64)\reaper.exe
Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll
Report Id: fb5855e0-190c-4f44-82cc-91b0f1fad658
Faulting package full name:
Faulting package-relative application ID:
Event Xml:

1000
0
2
100
0
0x8000000000000000

176780

Application
GB-5950X

reaper.exe
7.7.4.0
6a26f475
ntdll.dll
10.0.26100.8328
0022b8e0
c0000374
0000000000117175
0x5f0c
0x1dcf92c0f283def
C:\Program Files\REAPER (x64)\reaper.exe
C:\WINDOWS\SYSTEM32\ntdll.dll
fb5855e0-190c-4f44-82cc-91b0f1fad658

Any update on reaper and 176k?

Wow, 176 kHz? We’ll definitely take a look. Off the top of my head, we’re not aware of many users working at that sample rate. When recording drift cars for a major video game, we used 192 kHz and 32 bit depth to give ourselves plenty of headroom without worrying about unexpected SPL spikes. Beyond specialised applications like that -or perhaps processing recordings from high-end digital microphones in spaces such as the V&A Hall - I’m curious what workflow is driving the need for 176 kHz in a DAW.

Audiophile quality recordings of acoustic instruments with analogue mics (Schoeps, B&K).

Interesting @Tristan would you mind checking this on Monday please?

At the moment, SEQ crashes when I close the GUI.

The higher sample rates make a difference on the clarity of instruments with a lot of delicate top end.

A simple test is to record a 12-string at 44.1k, and then 176k and then listen back and compare while focusing on the top end.

Hi Any update to the crash situation?

Hi @gregb We’ve confirmed it. Can’t give you any ETA at the moment but will have some news soon!

Is there any update yet?

Hi

I bought this plugin on the not unreasonable assumption that it had no critical bugs.

I have never been able to use this plugin.

Any update?

Is the bug fixed in the Pro version?

HI @gregb, I’m going to DM you a link to Scaler EQ Pro to see if it resolves the issue for you. We’ve tested export at all sample rates without issue.
FYI Scaler EQ Pro is well beyond Scaler EQ in terms of tech, pre and post filter decay and build up. Sounds much better overall and Bass and HF Compressors are fantastic - so well worth using it.