The overload margin is a healthy>30dB with recommended MC cartridge output range of. Signal to noise ratio is >90dB (MM) and >70dB (MC). RIAA accuracy is spec'd at± 0.3dB 30Hz-50kHz. MM load is 47kOhms/100pF with 39dBs of gain. The (defeatable) standby mode switches off the unit after 20 minutes of non-use.Ĭambridge chose to keep things simple by offering no MC loading options, instead fixing it at a sensible 100 ohms, with gain fixed at 60dB. The front panel features a "standby/on" button, a MM/MC selector, the large center-mounted volume control and a 1/4" headphone jack. That allows you to read from above as well as identify what's what even with cables connected. Cambridge identifies the back panel jacks from both above and below, which is something I wish all manufacturers would do. There's also an IEC jack for the built-in switch mode power supply instead of an outboard "wall-wart" type supply and a ground lug. The back panel features separate MM and MC inputs as well as a balance control, which is somewhat unusual but a nice feature for headphone listening. It certainly surprised me! It also features a headphone amplifier so it makes for a great desktop or dorm room accessory. Cambridge Audio's Duo is a compact, attractive, lightweight (2.1 Lbs) low priced phono preamplifier that will surprise you with its solid sonic performance as well as its low price.
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