John Linsley Hood 1450

Description

The Hart Linsley Hood 1450 preamplifier represents the ultimate standard of performance that is available from the microgroove long playing record medium.

The combination of the preferred Shunt Feedback concept and a very advanced discrete component circuit topology designed by John Linsley Hood give a result which is sonically better, with a greater openness of sound than any circuit before.

Having a specially optimised low-impedance front end it is particularly suited to use with moving coil cartridges and for this purpose it even surpasses the widely acclaimed integrated circuit RIAA preamplifier by the same designer.

Both moving coil and moving magnet cartridges can be used, the higher output of the latter being fed into an AC coupled input stage. There is also on-board provision for fitting loading capacitors where moving coil cartridges need this.

An SA (Series Audiophile) version of this excellent kit is available with even higher grade components than the normal version. This comes with capacitors using different dielectrics and with lower ESR electrolytics and selected semiconductors. These sets have SA suffixes.

Normally the K1450 will be used in its own case as near as possible to the turntable to minimise the cable runs carrying the very low level, and therefore vulnerable, pickup cartridge signals.

Specifications

Frequency response: ±025dB to RIAA curve

Signal to noise ratio: 26dB below record surface noise

Sensitivity (for 500mV output): 37mV (mm), 340pV (mc)

Input impedance: 47k ohms (mm), 100 ohms (mc)

Gain: 134 (mm), 1460 (mc)

Overload: 670mV (mm), 60mV (mc)

WITH PITCH CONTROL LED FOR 33RPM AND 45RPM (NEED ADJUST)

PCB DESIGN BY BARIS ELEKTRONIK