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.


Inside the SA4
Volume Control:
  SA4: Goldpoint Stereo Mini-V Stepped Attenuator, with precision 0.1%, thin film resistors.
  SA4M: Two Goldpoint Monaural Mini-V Stepped Attenuators, with 0.1%, thin film resistors.
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, sandblasted and black anodized, 1/4" front and rear panels.
Dimensions:   2.3" Tall  x  6.2" Wide  x  7.0" Long
Weight: approx.: 1 3/4 lb.

Heavy duty gold plated RCA jacks 
are recessed into our 1/4" thick rear panels.
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Note: Silver knobs (instead of Black) 
are a free option on all of our Passive Preamps,
Precision Level Controls, and Input/Output Switchers.
(Just ask for Silver Knobs when ordering.)
Prices:
Part Number Description
Price
SA4 Stereo Mini-V Level Control, 4 Input
$492
SA4M Dual Mono Mini-V Level Controls, 4 Input
$522
About Passive Preamplifiers:
Installing an active preamplifier between a CD/DVD player and a power amplifier is not always the right thing to do. If your power amplifier has good input sensitivity and plenty of gain, an active preamplifier can act as unneeded, redundant amplification circuitry, degrading the overall system sound quality. It follows that removing unnecessary circuitry from your signal path can improve sound quality. A passive preamp is often all that is needed between a signal source and a power amplifier.
The precision stepped attenuators used in Goldpoint passive preamps are more transparent sounding than the typical potentiometers found in other preamps - active or passive. If you are serious about great sound quality and already have adequate signal amplitude, enjoy a passive preamp in your system, such as a superior sounding Goldpoint SA1, SA2, or SA4.
About Stepped Attenuator Values:
We usually put 25K stepped attenuators into our SA1, SA2, and SA4 Passive Preamps. The 25K value allows the greatest flexibility, so these units can be used with nearly all solid-state and vacuum tube gear. We usually put 10K stepped attenuators into our SA1X and SA2X Precision Level Controls as these controls are most commonly used with amplified speakers (which have internal solid-state amplifiers). However, if requested, we will ship your SA Passive Preamp / Precision Level Control with any value stepped attenuator you choose from our stocked values (5K, 10K, 20K, 25K, 50K, 100K, or 250K).
 
Goldpoint Passive Preamps
SA1
SA1
Stereo Mini-V,
RCA sets: 1 In, 1 Out
SA2
SA2
Stereo Mini-V, Aux I/O,
Up to 2 RCA Input sets
SA4
SA4
Stereo Mini-V, Aux I/O,
Up to 4 RCA Input sets
SA4M
SA4M
Dual Mono Mini-Vs, Aux I/O,
Up to 4 RCA Input sets
Precision Balanced Level Controls
SA1X
SA1X
Balanced Stereo Mini-V,
XLR sets: 1 In, 1 Out
SA2X
SA2X-I
Balanced Stereo Mini-V,
XLR sets: 2 In, 1 Out
SA2XM
SA2XM-I
Balanced Dual Mono Mini-Vs,
 XLR sets: 2 In, 1 Out
SA1X-LR
2 x Mono Bal. Mini-Vs,
2 chassis set: 1 L, 1 R
SA2X-O
Balanced Stereo Mini-V,
XLR sets: 1 In, 2 Out
SA2XM-O
Balanced Dual Mono Mini-Vs,
XLR sets: 1 In, 2 Out
Input/Output Switching Controls, and Project Enclosures
SW4
SW4
For Input Switching, Aux I/O,
Up to 4 RCA Inputs
SW2X
SW2X-I
Balanced Switching,
XLR sets: 2 In, 1 Out
EN1 and EN2
EN1
Project Enclosure,
4 3/4" x 6" x 2 3/8"
SW2X-O
Balanced Switching,
XLR sets: 1 In, 2 Out
EN2
Project Enclosure,
6 1/4" x 6" x 2 3/8"