The SA4 and SA4M Passive Preamps

Goldpoint SA4

Goldpoint SA4M

The Goldpoint SA4 (stereo) and SA4M (dual mono volume controls) easily out perform other
passive preamplifiers. Along with superior clarity, transparency, and precision, they also provide
the flexibility of a selectable Auxiliary Input/Output RCA jack set 100% passive, they were
designed to improve sound quality while replacing (often unnecessary) active preamplifiers.


No distortion is added to your signal path while performing level control.
(Active preamps add in at least some distortion.)
4-position selector switch allows level control for multiple signal sources.
Versatile AUX Input allows easy rewiring (two internal wire jumpers) for alternative preamp functions.
Goldpoint precision stepped attenuator for low noise and excellent channel-to-channel signal level matching.



The upper SA4 rear panel shows the traditional 4 Input sets with 1 Output set.
The lower SA4R panel was designed for use as either
1 In / 4 Outs or  4 Ins / 1 Out.


Inside the SA4


Volume Control: SA4 (stereo) and SA4M (dual mono):
Goldpoint low-noise, precision Stereo 24 or 47 Position Stepped Attenuator
.
Selector Switch: Goldpoint 2P-4T-1D.
Inputs & Outputs: Four sets of Stereo Inputs and one set of Outputs.

LINE IN 4 / AUX is easily configured for alternate use by re-positioning 2 internal wire jumpers.
1) Fourth Line Input (factory default).
2) Tape Output.
3) Main Output #2.
Rear Panel RCA Jacks: Gold-plated, heavy duty solid brass, right angle PC board style.
Wiring: High grade, silver-plated copper, multi-stranded, with Teflon jacketing.
Chassis: Aluminium clam-shell, 1/4" front and rear panels.
Dimensions: 2.3" Tall x 6.2" Wide x 7.0" Long
Weight: 1 3/4 lb.

Prices:
Part Number Volume Control
Price
SA4 Stereo 24-Position Stepped Attenuator
$532
SA4-47Stereo 47-Position Stepped Attenuator$617
SA4M Dual Mono 24-Position Stepped Attenuators
(back in stock mid April, 2024)
$569
SA4M-47Dual Mono 47-Position Stepped Attenuators$654

*** REVERSE IT! ***   Use as 1 IN - 4 OUT. Because the SA4s have stepped attenuators, we have to change internal wiring to do this, but if you want it, add the letter "R" to the part number, such as SA4-R, SA4M-47-R, etc. (The rear panel labeling will be backwards, but the The Main Out can become the single Line Input set while the four Input sets can become four Output sets, going out to four amlifiers.)

Note about our knob dial pattern: The Goldpoint SA box front panel dial pattern shows the numbers 0 to 23, with a dot in between each adjacent number. When a 24-position stepped attenuator is installed, each knob position points to a number. When a 47-position stepped attenuator is installed, each knob position points to a number, then a dot, alternately.









Goldpoint Passive Preamps / In-line Level Controls
RCA SA1 SA2SA3+2 SA4 SW3+2 SW4
XLR
SA1X SA2XSW2X


Blank EN1, EN2












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