What is the Hubble and who needs it?

A new product is a new opportunity for perfection. With perfection as the goal, the Hubble started with the only absolute, perfect beginning – a blank sheet of paper. Each element added to the perfect start was meticulously scrutinized and evaluated before its inclusion. To avoid clutter in general, and especially in the signal path, only essential ‘must have’ elements were allowed on the list.


Unlike conventional products, the design of the Hubble is not driven by the insatiable quest for a
longer list of more features. Absolutely nothing superfluous is permitted into the signal path. Simplicity of the signal path is the guiding principle. That rule is followed in an uncompromising, disciplined
way.

For the best in battery powered phono preamps – the best choice is Hubble. It is a much improved derivative of the classic PHD. It takes PHD performance to a higher level with updated circuitry, new timer control of power and improved battery holders.

Technical Specs & Notes

Power Requirements:

120 VAC

240 VAC (Special Order)

Dimensions (WHD): 17″ x 3 1/2″ x 16 1/4″

Weight: 22 lb.

Battery Life
1,000 hours
(actual power-on time)

Gain Adjustments

45 dB or 50 dB
55 db or 60 dB

Loading Adjustments

No card installed for 47.5 k Ohm
10 k Ohms or 4.75 k Ohms
1 k Ohms or 475 Ohms
200 Ohms or 100 Ohms


A blank plug-in board is furnished. Any desired loading
resistor and/or capacitor can be soldered to it. Install
identical values in both the upper and lower positions.
i.e. same values for each preamp channel.