I owned this excellent cartridge in the past and even though it is a Moving Coil Cartridge with it’s 2.5mV output it performed best through my Moving Magnet input of 38db gain and 47k ohms loading. You could overload the MC section of a preamp with the Blackbird. Many of the high output moving coils were designed to allow use of the Moving Magnet input.
Matching Pre-amp Settings for Cartridge
Hello-
I have a Yamaha C-85 Pre-amp. I have a Sumiko Blackbird (High Output 2.5mV) moving coil cartridge.
The Yamaha offers 2 selections for a MC cartridge, they are 100 Ohm and 1K Ohm.
Some of the Sumiko specs are the following: Freq. Resp.= 10Hz - 50kHz, Internal Impedance = 135 Ohms, Load Impedance= 47k Ohms
Question; do I select 100 Ohm or 1k Ohm on my Pre-amp phono impedance selector ?
I have more specs if needed.
Also, on rear of Pre-amp, next to phono jacks, is a red button selector. Manual describes red button as follows: Use this switch to refine volume control with "high output level cartridges". I assume my cart is high level. Press button in to lower signal from cart by 10 dB, press again to release button & return signal to normal. I have it set to normal. Is Normal correct setting for this Sumiko?
TIA, Robes-