What is the PhonoBlock Redefined and who needs it?

The PhonoBlock was introduced almost 10 years ago. It performs beautifully and continues to please music lovers all over the world.

Then came an opportunity to make it even better.

The circuit remains essentially the same. Improvements focused on providing a better environment to more fully realize its potential.

The PhonoBlock refinements are derived from the Argentum design. The much more expensive Argentum is an all–out, hand-wired, silver–signal path version of the classic PhonoBlock. Turns out, the same extremely disciplined short signal path layout could be used to refine the classic PhonoBlock audio board.

The performance of the PhonoBlock has been refined and improved. Its classic, understated design is still there — even more so.

-Ron Sutherland

Technical Specs & Notes

Power Requirements:

120 VAC

240 VAC (Special Order)

Dimensions (WHD): 17″ x 3 1/4″ x 17″

Weight: 21 lbs.

Price: $10,000

Loading Adjustments

Dale/Vishay RN65-style resistors are included with the following values.

47.5k Ohms (4752)
1000 Ohms (1001)
475 Ohms (4750)
200 Ohms (2000)
100 Ohms (1000)
49.9 Ohms (49R9)

Your PhonoBlock is shipped with loading set to 200 Ohms.

Gain Adjustments

Dale/Vishay RN65-style resistors are included with the following values.
121 Ohms for 45 dB gain (1210)
75 Ohms for 50 dB gain (75R0)
40.2 Ohms for 55 dB gain (40R2)
20 Ohms for 60 dB gain (20R0)
15 Ohms for 63 dB gain (15R0)
10 Ohms for 67 dB gain (10R0)


Your PhonoBlock is shipped with gain set to 60 dB.