Pentatonix fans wondering who replaced Avi in Pentatonix should note that the group did not replace Avi with a single permanent bass vocalist in the way some assume; instead, the ensemble shifted to a four-person lineup and redistributed vocal roles after his 2017 departure. Avi Kaplan, the original low voice and foundational bassist for the group, left in early 2017 to pursue personal and musical goals outside Pentatonix. The quartet—Scott Hoying (high baritone), Mitch Grassi (super high lead), Kirsten Maldonado (mezzo sophere), and Matt Sallee (new bass)—continued creating tight, layered arrangements by moving Matt Sallee into the bass role and redistributing mid and high parts within the remaining members.
Avi Kaplan’s Role in Pentatonux
Why Avi Mattered
Avi Kaplan joined the group during what became the viral “Star Trekkin’” period in 2011, quickly becoming the anchor for their rich, resonant bass harmonies. His voice provided the foundational low end that balanced the group’s bright, intricate counterpoint, and his measured, relaxed stage persona contrasted with the group’s rapid-fire vocal percussion and energetic choreography. Kaplan co-wrote early material and shaped arrangements, helping establish the precise, studio-quality production that defined Pentatonix’s breakthrough sound on YouTube and in albums.
The 2017 Transition
Departure and Timing
In February 2017, Pentatonix announced Avi’s decision to leave for personal and professional reasons. His departure coincided with the close of the Pentatonix: The World Tour and the wrapping of related recording commitments. The group made it clear that the farewell was amicable and that they would continue as a four-member ensemble rather than seek an immediate replacement. This decision reflected a deliberate shift in group dynamics and long-term strategy, allowing the remaining members to take on broader vocal responsibilities while preserving the group’s chemistry.
Who Replaced Avi in Pentatonix
Introducing Matt Sallee
Later in 2017, Pentatonix formally introduced Matt Sallee as Avi’s successor in the bass section. Sallee, known for his smooth, warm tone and versatility, brought new color to the group’s low harmonies while respecting the arrangements that audiences loved. His arrival marked a transition to a four-person configuration that relied on tighter vocal layering and reworked parts for Maldonado and Grassi, ensuring that the group’s trademark blend remained intact despite the lineup change.
How the Lineup Shifted
Vocal Reconfiguration
With Sallee assuming the bass role, the remaining members adjusted their positions within the ensemble. Scott Hoying continued as baritone anchor, while Mitch Grassi and Kirsten Maldonado expanded their roles in the mid and upper registers to preserve the group’s harmonic richness. This reconfiguration did not eliminate Avi’s low voice—it redistributed weight across the group, emphasizing blend, agility, and studio precision over the prominent bass-forward textures of earlier years.
| Metric | Detail | Source Type |
|---|---|---|
| Primary Departure | Avi Kaplan left in early 2017 | Official Announcements |
| Replacement Bass | Matt Sallee joined later in 2017 | Group Statements & Press |
| Current Membership | Scott Hoying, Mitch Grassi, Kirsten Maldonado, Matt Sallee | Official Site & Tour Rosters |
| Lineup Stability | Quartet maintained since late 2017 | Tour Rosters & Releases |
What This Means for Fans
Continuity and Evolution
For listeners, the shift from a five-person to a four-person lineup changed the group’s timbre but not their commitment to tight, note-perfect arrangements. New listeners may not immediately detect a difference, as the group’s production techniques and meticulous editing maintain a full, rich sound. Longtime fans, however, may note a slightly less bass-heavy texture and a rebalanced vocal palette, reflecting the natural evolution of a working ensemble adapting to its members’ paths.
Current Configuration
Status as of 2025
As of 2025, Pentatonix remains a quartet consisting of Scott Hoying, Mitch Grassi, Kirsten Maldonado, and Matt Sallee. There have been no public announcements about further lineup changes, and the group continues to release music and tour with this configuration. The transition from Avi’s bass to Sallee’s approach has become part of the group’s background story—a demonstration of how a skilled ensemble can evolve while preserving its core identity.
In sum, the person who effectively replaced Avi in Pentatonix is Matt Sallee, supported by a quartet model that redistributes vocal duties to keep the group’s sound cohesive. Understanding this shift helps clarify Pentatonix’s current lineup and how its arrangements have matured since their early YouTube days.