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The Rolls HA243 is a high powered headphone amplifier with four 1/4 inch and 1/8 inch (3.5mm) headphone outs. The HA243 features an A-B switch for each channel to monitor either the A or B input with the flick of a switch.RCA, 1/4 inch and 1/8 inch stereo inputs for A and B inputs that can be switched to mono. The HA243 was designed with a new JRC 3414 IC for each channel. This makes the HA243 a very powerful headphone amp, with incredible sound quality. Designed with a studio application in mind, the HA243 is the perfect headphone amp anywhere high quality sound is required.(4) 1/4 inch TRS Headphone Outputs with Level Control
With the new JRC3414 I.C.’s it has plenty of gain
1/4 inch , 3.5mm and RCA A and B Inputs
Switchable mono or stereo for both A and B inputs