英和和英

coaxial attenuator

a loudspeaker

stereo equipment that boosts the sound level called an integrated amplifier

a gramophone

a wearable hearing aid

a conglutinator

a megaphone

a record for a gramophone

sound equipment called an equaliser amplifier

a speaker in the shape of a morning glory flower

the vocal organs

alternating copolymer

stereo equipment that combines the main and pre-amplifiers

a megaphone

an amplification instrument called a {class B amplification circuit}

a masterful speaker

an audio apparatus called power amplifier

a condenser speaker

wear a hearing aid

an audio amplifier combined with the main and pre-amplifier

isotonic tuning

a complete set of audio devices

bound collection of antiphons

stereo components

stereo components

an audio-instrument called a main amplifier

an insulator―a switch

a coagulation factor

a complement

a sound instrument called an audio amplifier