2024年Q4 SMSL (S.M.S.L Electronics・中国深圳・2009年設立・15年継続 Asia Cost-effective HiFi audio brand・累計売上$30M+/year・Industry-leading cost-effective HiFi specialty brand) 発表D-6s・Cost-effective Desktop DAC・Dual ESS Sabre ES9039Q2M chips (Mid-tier ESS Sabre DAC・Industry-leading cost-effective DAC) + DSD512 + PCM 768kHz + Bluetooth 5.3 + Industry-leading cost-effective Premium DAC ($300-$500 tier vs FiiO K17 $1,000-$1,200 / Topping DX9 Anniversary $1,000-$1,200 = 1/3 lowest pricing)・Cost-effective Audiophile dominant brand + Asia HiFi 15年heritage。