Product Description - Model 1547 - Phono Preamplifier

Nothing can surpass the warmth, emotion and musicality of a good vinyl set-up and it is for that reason music lovers still return to the format when they really want to connect with the artists performance.  The Ovation High Fidelity Model 1547 MC/MM Phono EQ Amplifier is designed to partner with any turntable to deliver the ultimate vinyl music experience and we are confident it will be the last phono EQ amplifier you will ever need.

Impeccably engineered to extract every musical nuance from your  precious records, it features cutting edge design techniques that result in one of the quietest, most accurate phono EQ amplifiers on the market. Tight inter-channel gain and equalisation balance coupled to a very low noise floor delivers outstanding imaging and transparency, recreating the magic of a front row listening experience.

As with all our products, it is built to last and carries a 5-year warranty.

The Ovation High Fidelity Model 1547 MC/MM Phono EQ Amplifier. Engineered for Art.

The Model 1547 Phono EQ Amplifier accepts either moving coil (MC) or the more common moving magnet (MM) inputs and boosts and equalizes the signal from your turntable to the industry standard RIAA curve, after which it can be fed into a standard line preamplifier. 

The MC front-end utilizes an ultra-low noise single ended JFET amplifier stage to deliver better than 75 dB S/N ratio (ref 500uV input, ‘A’ weighted), while the MM input uses a very low noise integrated amplifier for superior performance, with signal to noise ratio’s exceeding 82 dB (ref 5mV input, ‘A’ weighted).  For a nominal 350mV output, our all-active EQ topology delivers best in class overload capability of > 32 dB (MM ref 3 mV input) and > 40 dB (MC re 250 uV input) that, unlike split or passive EQ approaches, is maintained over the entire audio band from  20 Hz right through to > 50 kHz. The result is a remarkably smooth, and quiet phono stage that deals gracefully with LP surface noise pops and crackles, unlike active/passive or all passive stages which compromise on overload, noise and overload recovery.

Switchable loading and gain, located on the unit’s rear panel, caters for input signals from 250 uV to 1.2 mV on MC and 1.2 mV through to 8mV on MM.

RIAA EQ conformance  is to within +-0.2 dB (typical) over 20Hz to 20kHz frequency range and ensures faithful reproduction of your records.

Unlike many competing products, the Model 1547 power supply is built into the housing, reducing cabling and therefore minimizing hum and noise pick-up – reference 500mV out, ‘A’ weighted hum levels approach -90 dB (MM input) and better than -80 dB (MC input).

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Specification

Inputs Moving Coil or Moving Magnet - selected via pushbutton switch on rear of unit
Input Sensitivity for 350 mV to 500 mV Output MC - 250uV to 1.2mV - gain selected via DIP switch on rear of unit; MM 1.2 mV to 8 mV selectable via DIP switch on rear of unit
System Gain MC Amplifier 11x or 21x; MM Amplifier 50x or 98x
Signal to Noise Ratio ref 500mV Output MC > 75 dB 'A' weighted; MM > 82 dB 'A' weighted
Distortion - MC and MM Better than 0.005% at 1 kHz ref 500mV output; Better than 0.007% 20 Hz to 20 kHz
RIAA Conformance Typically to within 0.2 dB 20 Hz to 20 kHz; 0.5 dB max
Frequency Response -3dB 17 Hz to 55 kHz ref 500mV output
Overload Margin - 20 Hz to 20 kHz MC >: 40 dB ref 250uV input; MM > 30 dB ref 3mV input for 350mV output
MM Input Cartridge Loading Options and Input Impedance 100 pF, 220 pF, 320 pF DIP switch selectable on rear panel in parallel with 47k Ohms. Alternative loading options avaiable free of charge.
MC Input Loading Options 390, 270, 150, 100 or 75 Ohms; Alternative loading options can be provided free of charge
Inter-channel Balance Better than 0.2 dB
Channel Separation (20Hz to 20kHz - measured channel shorted to ground > 69 dB
Output Impedance 150 Ohms
Recommended Load Impedance 10k Ohms and < 500pF (typical 1 metre interconect cable will be ~100 pF)
Dimensons 240 mm wide x 95 mm high x 190 mm deep
Weight 3.5 kgs unit only; 5 kgs including shipping carton
Warranty 5 years on parts and labour; Terms and conditions apply - see link at foot of this page

Ovation High Fidelity. Audio Equipment Engineered for Art.