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Sparkos Labs SS3602 Discrete Dual Op Amp (1PC) Review

A true dual discrete op-amp in a DIP8-compatible package with a Class A biased output stage, 140dB open-loop gain and gold-plated pins for upgrading IC op-amps.

3.63.6 out of 5 starsUpdated October 14, 2026
$89.99Price checked October 14, 2026
Check price at Douk Audio
Sparkos Labs SS3602 Discrete Dual Op Amp (1PC)

Our verdict

The Sparkos Labs SS3602 is an $89.99 discrete dual op-amp that drops into any DIP8 socket to replace IC op-amps like the NE5532, OPA2604 or LME49720. It is a true dual discrete design with a Class A biased output stage, 140dB open-loop gain with two-pole compensation and input offset typically under 250uV, aimed at DAC output stages, preamps and buffers. Being discrete, it stands about 10.5mm above the board, so check clearance, count your sockets, and note that installation damage is not warrantied.

Best for
DIYers and upgraders who want a drop-in discrete replacement for IC op-amps in a DAC output stage, preamp or buffer.
Skip if
Your device has little clearance above the socket, you need a matched pair and only ordered one, or you want a factory-warrantied modification.
Check price at Douk AudioHow we research

The Sparkos Labs SS3602 is a discrete dual operational amplifier priced at $89.99, sold as a single unit with a DIP8 socket in the box. It is an upgrade component for listeners and builders who want to replace standard IC op-amps in amplifiers, preamps, DACs and sound cards with a discrete design.

The SS3602 is a true dual discrete op-amp built from individual components rather than an integrated circuit, avoiding common IC limitations and enabling higher performance in gain, noise behavior and drive capability in demanding audio signal paths. Its output stage is biased into Class A operation, prioritizing linear, continuous operation and refined low-level detail for smoother signal integrity, especially in critical gain and output stages.

Electrically, it is specified with 140dB of open-loop gain and two-pole compensation for excellent signal control and low-noise operation, with input offset voltage typically under 250uV at +/-12V Vcc - which is why Sparkos points to DAC output stages, preamps and buffers as natural homes. Physically, it is a DIP8-compatible package with gold-plated pins and an approximate footprint of 15.0 x 13.75mm, standing about 10.5mm above the PCB seating plane - taller than a conventional chip, so verify clearance inside the enclosure. Installation carries two rules from the listing: always disconnect power before installing or removing the op-amp, and always align the notch on the op-amp with the socket notch, as damage from incorrect installation is not covered by warranty or compensation.

Douk Audio ships worldwide with free and expedited options; costs vary by country. Parcels under 2kg ship airmail (10-25 days), heavier orders by DHL, UPS or FedEx (5-8 days), and any import duties or customs fees are the customer's responsibility. The store offers a 30-day free return or full refund and a 1-year warranty on all items, excluding orders placed by mistake, man-made damage or misuse, subjective change of mind, and anything outside the warranty terms.

What we liked

  • True dual discrete design built from individual components, avoiding common IC limitations in gain, noise behavior and drive capability
  • Class A biased output stage prioritizes linear operation and refined low-level detail
  • 140dB open-loop gain with two-pole compensation for signal control and low-noise operation in DAC output stages, preamps and buffers
  • DIP8 package is a direct plug-and-play upgrade for IC op-amps such as NE5532, OPA2604 and LME49720
  • Gold-plated pins and a DIP8 socket included in the box

Worth noting

  • Sold as a single unit (1PC) - check how many op-amp sockets your device has before ordering
  • At about 10.5mm above the PCB seating plane it stands taller than a standard IC op-amp, so cramped enclosures may not close over it
  • Incorrect installation, such as wrong orientation, is not covered by warranty or compensation

Questions before you buy

What op-amps can the SS3602 replace?

It is DIP8 compatible and described as a direct plug-and-play upgrade for common IC op-amps such as the NE5532, OPA2604 and LME49720 in amplifiers, preamps, DACs and sound cards.

How should I install it?

Disconnect power before installing or removing the op-amp, and align the notch on the op-amp with the socket notch. Damage caused by incorrect installation is not covered by warranty or compensation.

Will it fit in my device?

Check clearance first: the SS3602 stands about 10.5mm above the PCB seating plane with a footprint of roughly 15.0 x 13.75mm, which is taller than a standard IC op-amp.

What is included with the op-amp?

One SS3602 dual discrete op-amp and one DIP8 socket.

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