Squeezelite with USB DAC plays max at 48k

Hello.

I need help troubleshooting squeezelite on a Raspberry Pi 4 with an Emotiva PT-100 USB DAC. It plays music up to 48k without resampling but anything over, like 96k, gets down-sampled to 48k. Below is a breakdown of what I've done to troubleshoot so far. I just can't seem to get it to work right.

1. Tried using picoreplayer and selecting the USB DAC. Plays music but resamples over 48k
2. Tried using Raspbian. Plays music but resamples over 48k.
3. Tried using Ubuntu server. Plays music but resamples over 48k.
   - Pulseaudio is not installed.
   - Stopping squeezelite and running
   Code:

   ---

   for rate in 44100 48000 88200 96000; do speaker-test --rate $rate --period 1 --nloop 4; done

   ---

   - The DAC shows correct bit rates. So that tells me the DAC has no issue playing sound with those bit rates.
   - Here are my options for playback
   Code:

   ---

   ubuntu@ubuntu:~$ squeezelite -l
Output devices:
  null                          - Discard all samples (playback) or generate zero samples (capture)
  sysdefault                    - Default Audio Device
  default
  hw:CARD=Headphones,DEV=0      - bcm2835 Headphones, bcm2835 Headphones - Direct hardware device without any conversions
  plughw:CARD=Headphones,DEV=0  - bcm2835 Headphones, bcm2835 Headphones - Hardware device with all software conversions
  sysdefault:CARD=Headphones    - bcm2835 Headphones, bcm2835 Headphones - Default Audio Device
  dmix:CARD=Headphones,DEV=0    - bcm2835 Headphones, bcm2835 Headphones - Direct sample mixing device
  hw:CARD=PT100,DEV=0            - Emotiva PT-100, USB Audio - Direct hardware device without any conversions
  hw:CARD=PT100,DEV=1            - Emotiva PT-100, USB Audio #1 - Direct hardware device without any conversions
  plughw:CARD=PT100,DEV=0        - Emotiva PT-100, USB Audio - Hardware device with all software conversions
  plughw:CARD=PT100,DEV=1        - Emotiva PT-100, USB Audio #1 - Hardware device with all software conversions
  sysdefault:CARD=PT100          - Emotiva PT-100, USB Audio - Default Audio Device
  front:CARD=PT100,DEV=0        - Emotiva PT-100, USB Audio - Front output / input
  surround21:CARD=PT100,DEV=0    - Emotiva PT-100, USB Audio - 2.1 Surround output to Front and Subwoofer speakers
  surround40:CARD=PT100,DEV=0    - Emotiva PT-100, USB Audio - 4.0 Surround output to Front and Rear speakers
  surround41:CARD=PT100,DEV=0    - Emotiva PT-100, USB Audio - 4.1 Surround output to Front, Rear and Subwoofer speakers
  surround50:CARD=PT100,DEV=0    - Emotiva PT-100, USB Audio - 5.0 Surround output to Front, Center and Rear speakers
  surround51:CARD=PT100,DEV=0    - Emotiva PT-100, USB Audio - 5.1 Surround output to Front, Center, Rear and Subwoofer speakers
  surround71:CARD=PT100,DEV=0    - Emotiva PT-100, USB Audio - 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
  iec958:CARD=PT100,DEV=0        - Emotiva PT-100, USB Audio - IEC958 (S/PDIF) Digital Audio Output
  iec958:CARD=PT100,DEV=1        - Emotiva PT-100, USB Audio #1 - IEC958 (S/PDIF) Digital Audio Output
  dmix:CARD=PT100,DEV=0          - Emotiva PT-100, USB Audio - Direct sample mixing device
  dmix:CARD=PT100,DEV=1          - Emotiva PT-100, USB Audio #1 - Direct sample mixing device
  dsnoop:CARD=PT100,DEV=0        - Emotiva PT-100, USB Audio - Direct sample snooping device

   ---

   - Here is my /etc/default/squeezelite configuration file
   Code:

   ---

   # Defaults for squeezelite initscript
# sourced by /etc/init.d/squeezelite
# installed at /etc/default/squeezelite by the maintainer scripts

# The name for the squeezelite player:
SL_NAME="$(hostname -s)"

# ALSA output device:
SL_SOUNDCARD="hw:CARD=PT100,DEV=1"

# Squeezebox server (Logitech Media Server):
# Uncomment the next line if you want to point squeezelite at the IP address of
# your squeezebox server. This is usually unnecessary as the server is
# automatically discovered.
#SB_SERVER_IP="192.168.x.y"

# Additional options to pass to squeezelite:
# Please do not include -z to make squeezelite daemonise itself.
SB_EXTRA_ARGS="-a 180"

   ---

   - Here is my /etc/asound.conf configuration file. I was looking into this possibly being an issue with DMIX but this didn't help.
   Code:

   ---

   pcm.default_device {
  type hw
  card "PT100"
  device 0
}

pcm.!default {
  type plug
  slave {
    pcm "default_device"
  }
}

ctl.!default {
  type hw
  card "PT100"
}

   ---

   - I tried changing two properties in /usr/share/alsa/alsa.conf
   Code:

   ---

   defaults.ctl.card 0
defaults.pcm.card 0

   ---

   to
   Code:

   ---

   defaults.ctl.card 1
defaults.pcm.card 1

   ---

   - No luck :(