Michael J. Scarfe


Mike Scarfe has been an active audio professional for over fifty years. Mike has toured the world with International recording artists since 1975 and was instrumental in the design and implementation of the sound system used at Live Aid in 1985.

Highlights include:

  • JFK Memorial, Dealey Plaza, Dallas, November 2013, Sound system design.
  • 150th Anniversary of the Congressional Medal of Honor, Gettysburg National Battlefield, September 2013, Sound system design.
  • George W. Bush Presidential Library, Dedication, Dallas Texas, April 2013, Sound system design
  • Asian Pacific Economic Summit & Ministerial Meetings (APEC)
  • G40 Nuclear Security Summit – Washington, DC
  • NATO Summit – Chicago
  • Global Financial Markets Summit
  • G20 Pittsburgh Summit
  • G8 Summit – Savannah, GA
  • Annapolis Mid-East Summit
  • G8 Summit, Camp David
  • US/Africa Leaders Summit
  • Pope Benedict XVI Mass at Nationals Stadium, April 2008, Sound System Design & Engineering
  • Pope Francis Mass at Catholic University, September 2015, Sound System Design & Engineering
  • President Bush Election Night, Reagan International Trade Center Washington ~ Sound system design & engineering
  • Sound System vendor for Merriweather Post Pavilion 1998 to Present

Vice President


Hailing from Baltimore, but having worked around the country since 2006, Capaletti’s audio experience in the live events industry spans a diverse portfolio that has provided him with a comprehensive skill set along with an unparalleled level of experience. Capaletti’s entertainment experience stretches from touring with national musical acts, mixing large multi-act festivals and touring with nationally renowned comedians. In the entertainment sector, Capaletti has served as an A1, A2, Monitor Engineer and Systems Tech. Likewise, in the corporate and association markets, he has performed the same duties, but in support of Fortune 100 conferences and meetings. Capaletti focus’s his activities on account and project management, capital investments, staff management and recruiting, and system design.

Warehouse Manager

Service Technician


Jacki Grubb joined the MHA Audio’s team in 2021 as Controller, coming to us with over 25 years of financial and human resources experience. As Controller, Jacki’s responsibilities are expansive. They include building overhead budgets, maintaining banking relationships, and forecasting long term financial information while managing the day to day accounting operations of the Company.

Jacki also serves as our Human Resources contact for our team members. She manages our employee benefits, hiring and onboarding, and is focused on making MHA Audio a great place to work.

Prior to joining MHA Audio, Jacki worked in the construction industry and was responsible for the financial aspects of multi-million-dollar construction projects. While in college, Jacki interned for a local general contractor, climbing her way to Senior Accountant. She most recently held the position of Accounting Manager with another local general contractor.

Jacki’s attention to detail, ability to see the big picture, and critical thinking make her a great fit for MHA Audio.

Executive Coordinator

Alex Mack currently serves as the Executive Coordinator, directly supporting Executive Management with daily operations for MHA Audio and the affiliate companies: Showcall, Infinite Power and Checkmate Global. Alex works directly with all departments to develop new operational policies with the goal of streamlining processes to improve efficiency. She also manages all client contracts, freelancer and vendor agreements, certificates of insurance, company calendars and company marketing.

Alex joined the team in 2014 as MHA Audio’s Administrative Assistant.

Staff Accountant

An accounting professional since 1995, Billie-Jo serves as the MHA Audio’s Office Manager, and is responsible for the financial management of all aspects of the company, as well as its affiliate companies: Showcall, Infinite Power, and Checkmate Global. Billie-Jo’s responsibilities include: managing the company’s operational budget, accounts payable and receivable, payroll, contracting and procurement, vendor management, budget development, management and reconciliation, client budget oversight, and human resources management.

A native of Baltimore, MD, Billie-Jo earned her AAS in accounting from the Community College of Baltimore County. She is a single mother, and she and her son are avid fans of the Baltimore Ravens and Baltimore Orioles.

Operations Administrative Assistant

Rachael Celi serves as the MHA Audio Administrative Assistant, overseeing the companies’ daily administrative operations including office reception, answering phones, managing & ordering supplies, data management, coordinating in-house events and parties, booking travel, and providing support to the company President. She also regularly provides administrative support to our sister companies, Showcall & Checkmate Global.

Prior to joining MHA Audio, Inc, Rachael served two years as Office Coordinator for one of the top Real Estate Brokerages in Frederick, MD. She graduated from East Carolina University with a B.S. in Economics with a Minor in Business.

Rachael recently spent a year traveling in an RV across the country, hitting over 45 states! In her free time Rachael likes to go to concerts, spend time with family and enjoy the outdoors.

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