DWBM-FM

Mareco Broadcasting Network (MBN) made its debut in the radio industry in March 1963. Its first AM station, DZLM 1430 kHz, originally served only as a promotional venue for Mareco's Mabuhay and Villar record labels. It also held the local license to produce and market foreign music labels from a peak of over a hundred major international recording companies. During this time, DZLM played the latest and widest variety of popular music and was consistent no. 1 in the surveys, contributing significantly in popularizing radio as a prime entertainment medium in Manila.[1]

With its increasing listenership, DZLM was opened to commercial advertising. For superior quality, the station migrated from AM to FM and became known as DWLM at 105.1 MHz in 1973 as Super Tunog Pinoy 105.1 with an all-OPM format. In 1985, it rebranded as Power 105BM FM, switched to a new wave format and changed its callsign to DWBM.

In the early 1990s, MBN underwent several changes in management as well as programming with the launch of 105.1 Crossover in June 1994 with a smooth jazz format.[2]

105.1 Crossover (1994–2019).

A couple of years later, MBN expanded its Crossover network with 99.1 FM in Bacolod on February 1997, 93.1 FM in Cebu City on September of the same year (later moved to 90.7 FM), 93.1 FM in Davao City on June 1999, and a relay station of Manila over 105.1 FM in Baguio later that year. The Crossover format is also webcast worldwide in real time on their official website. At that time, it operated daily from 06:00 AM to 02:00 AM the following day.

In June 2014, 105.1 Crossover celebrated its 20th year as a jazz and R&B station, with the theme "Celebrating 20 Years of Great Music." At the same time, the station's first disc jockey after almost a decade, Benjamin (Reuben "Beng" Chua) - formerly of 106.7 Dream FM (now Energy FM) and Citylite 88.3 (now Jam 88.3) - went on board (6:00 AM – 10:00 AM weekdays).

On December 30, 2019, 105.1 FM silently dropped its Crossover brand and smooth jazz format and switched to a Top 40 format, as MBN opted to lease the station's airtime to Horizon of the Sun Communications (producer of Chinese Filipino oriented shows Chinatown TV and Chinese News TV on IBC 13). The station announced on the following day that the Crossover FM format has migrated online (via its live stream application).[3] Its Baguio relay station have also adopted the new format. While other MBN regional stations still broadcasts under the Crossover brand and format, they will soon follow suit with the Manila station under the same collaboration with Horizon of the Sun Communications.

On January 13, 2020, the Q Radio 105.1 branding was launched. Former PBS deputy director general and former Quest Broadcasting Network executive Carlo Jose Magno Villo was brought in as the station's director, along with several DJs from Wave 89.1 and its rivals Monster RX 93.1, 99.5 Play FM and government-run 87.5 FM1. It also airs daily news updates with reporting segments on local and international news, business, entertainment and lifestyle.

On November 16, all provincial crossover stations switched to Top 40 format same in Manila flagship station.