Images of Abell 655. Top left: LOFAR LBA (15-30 MHz) image. Top centre: LOFAR LBA (30–60 MHz). Top right: LOFAR HBA (120–167 MHz), tapered to 25 kpc (rest frame of the cluster). Bottom left: GMRT band 4 (450–850 MHz), tapered to 12 arcseconds. The BCG of Abell 655 is marked with a red circle. The small pink circles indicate AGN that were subtracted from the integrated flux density of region A. Bottom centre: Chandra X-Ray (ObsID 15159; 7.97 ks integration time; 0.5–7 keV, Botteon et al. 2022a) with GMRT 650 MHz overlay (compact sources subtracted). Contours are at [1, 2, 4, 8]×σ_RMS, with σ_RMS = 0.2 mJy beam⁻¹. Bottom right: SDSS DR9 colour image, with LOFAR HBA contours. Contours are at [4, 8, 16]×σ, with σ = 0.3 mJy beam⁻¹. Regions corresponding to the regions used in Fig. 5are marked with dashed red lines in the LOFAR images.