Consent of Ernst & Young LLP, Independent Registered Public Accounting FirmWe consent to the references to our firm under the captions “FinancialHighlights” in the Class A, Class B, Class C, and Investor Class sharesProspectuses and “Disclosure of Portfolio Holdings”, “Independent RegisteredPublic Accounting Firm” and “Financial Statements” in the Class A, Class B,Class C, and Investor Class shares Statement of Additional Information and tothe incorporation by reference of our report, dated February 10, 2006, on thefinancial statements and financial highlights of Pioneer Balanced Fund includedin the Annual Report to the Shareowners for the year ended December 31, 2005 asfiled with the Securities and Exchange Commission in Post-Effective AmendmentNumber 74 to the Registration Statement (Form N-1A, No. 2-28273) of PioneerBalanced Fund. /s/ ERNST & YOUNG LLPBoston, MassachusettsApril 24, 2006