Singxer SA-2 Fully Balanced Class A Headphone Amplifier / Preamplifier
$959.99 AUD
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Singxer SA-2 Fully Balanced Class A Headphone Amplifier / Preamplifier
$959.99 AUD
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Product Details
Singxer SA-2 Fully Balanced Class A Headphone Amplifier / Preamplifier
The Evolution of the SA-1 — Fully Realised
✔ True Class A, fully discrete, fully balanced design
✔ Up to 10W @ 32Ω — drives demanding planars with ease
✔ Major upgrade over the SA-1 in power, control, and resolution
✔ Functions as both headphone amplifier and preamplifier
The SA-2 is not just an update to the SA-1 — it’s a complete re-engineering of what made the original so respected.
Where the SA-1 earned its place as one of the most musical and engaging Class A headphone amplifiers in its category, the SA-2 takes that same foundation and pushes it into true reference territory.
More power. More control. Lower noise. Greater authority.
This is the amplifier the SA-1 always hinted at becoming.
Why the SA-2 Replaces the SA-1
If you’re familiar with the SA-1, the difference is immediate:
• Nearly 2–3× the usable power
• Significantly stronger current delivery for planar headphones
• Lower output impedance for tighter bass and improved control
• Greater microdetail, layering, and spatial precision
The SA-1 was loved for its smooth, slightly warm, musical presentation.
The SA-2 keeps that musicality — but adds scale, grip, and resolution that the SA-1 simply cannot match.
In real terms:
• Planars sound more effortless and controlled
• Dynamics gain punch and authority
• The soundstage becomes more stable, layered, and holographic
A True Class A Powerhouse
With up to 10W @ 32Ω (15W @ 20Ω) and the ability to drive loads down to 8Ω, the SA-2 behaves less like a typical headphone amplifier and more like a compact Class A power amplifier.
Modern flagship headphones — especially planar magnetics — demand current, not just voltage.
The SA-2 delivers that current effortlessly, maintaining composure where lesser amplifiers begin to flatten or harden.
Fully Discrete, Fully Balanced — Done Properly
This is a true quad-channel, all-discrete Class A design.
No op-amps. No shortcuts.
• Rohm ultra low-noise matched input transistors
• Multi-stage current amplification
• ON Semiconductor output devices with up to 4A drive per channel
The result is a presentation that feels:
• Effortless
• Organic
• Highly resolving without sounding clinical
How It Compares to Other Top Headphone Amplifiers
Many amplifiers today fall into two categories:
-
Ultra-clean but sterile (THX / measurement-focused designs)
-
Warm but underpowered (entry-level Class A designs)
The SA-2 sits right in the sweet spot:
• More natural and engaging than THX-style amplifiers
• More powerful and controlled than most Class A designs in this category
• More versatile than many single-purpose headphone amplifiers
In practice:
• vs THX-based amps → more depth, body, and realism
• vs mid-tier Class A amps → significantly more power and control
• vs speaker amp setups → cleaner, purpose-built headphone performance
This is why the SA-2 is increasingly being recommended as a reference all-rounder for serious headphone systems.
Designed for Real Systems
• Balanced XLR + RCA inputs
• XLR / 4.4mm / 6.35mm outputs
• Preamp outputs (XLR + RCA)
• Gain modes for IEMs → Planars
• Output impedance modes for system tuning
• GND / LIFT switch for ground loop control
It works equally well as:
• A flagship headphone amplifier
• A high-quality Class A preamplifier
Measured Performance
• THD+N: –117 dB (32Ω @ 8W)
• Noise floor: < 0.83 µV
• Dynamic range: > 146 dB
• Frequency response: 20 Hz – 80 kHz ±0.1 dB
These translate into a black background, excellent separation, and effortless dynamics.
What It Sounds Like
• Dense, controlled low-end with real authority
• Natural, unforced midrange with texture and body
• Smooth, extended highs without glare
• Stable, layered soundstage with convincing depth
It presents music with weight, realism, and flow — not artificial sharpness.
Who Is This For?
• SA-1 owners looking for a clear upgrade in power and control
• Planar headphone users (Audeze, HIFIMAN, etc.) needing proper current drive
• Listeners who want Class A musicality without sacrificing performance
• Systems needing a high-quality preamplifier and headphone amp in one
Audiophile Shop — Our Take
The SA-1 was one of those rare amplifiers that over-delivered for its price.
The SA-2 goes further — moving into a higher class of performance altogether.
If you’re upgrading from the SA-1, the improvement is immediately noticeable.
If you’re comparing across the market, the SA-2 stands out as one of the most complete and well-balanced Class A headphone amplifiers available today.
In Summary
• True Class A sound with real power
• Excellent control over demanding headphones
• A musical, non-fatiguing presentation
• A single amplifier that can anchor an entire system
Warranty – Audiophile Store
All products purchased from Audiophile Store are covered under a Local Australian Warranty. This warranty includes:Repair, Replacement, or Refund: If a product is found to be faulty, we will either repair or replace it. If neither option is available, a full refund will be provided.In Addition to Manufacturer's Warranty: Our warranty is offered in addition to any warranty provided by the manufacturer.Australian Consumer Law Compliance: Your purchase is protected under the Australian Consumer Guarantee (ACCC).Locally Managed: All warranty returns and repairs are handled within Australia through local repair centres for faster service and peace of mind.Ongoing Support: We offer customer support for the lifetime of the product. Feel free to contact us anytime with questions or concerns.
Product Details
Singxer SA-2 Fully Balanced Class A Headphone Amplifier / Preamplifier
The Evolution of the SA-1 — Fully Realised
✔ True Class A, fully discrete, fully balanced design
✔ Up to 10W @ 32Ω — drives demanding planars with ease
✔ Major upgrade over the SA-1 in power, control, and resolution
✔ Functions as both headphone amplifier and preamplifier
The SA-2 is not just an update to the SA-1 — it’s a complete re-engineering of what made the original so respected.
Where the SA-1 earned its place as one of the most musical and engaging Class A headphone amplifiers in its category, the SA-2 takes that same foundation and pushes it into true reference territory.
More power. More control. Lower noise. Greater authority.
This is the amplifier the SA-1 always hinted at becoming.
Why the SA-2 Replaces the SA-1
If you’re familiar with the SA-1, the difference is immediate:
• Nearly 2–3× the usable power
• Significantly stronger current delivery for planar headphones
• Lower output impedance for tighter bass and improved control
• Greater microdetail, layering, and spatial precision
The SA-1 was loved for its smooth, slightly warm, musical presentation.
The SA-2 keeps that musicality — but adds scale, grip, and resolution that the SA-1 simply cannot match.
In real terms:
• Planars sound more effortless and controlled
• Dynamics gain punch and authority
• The soundstage becomes more stable, layered, and holographic
A True Class A Powerhouse
With up to 10W @ 32Ω (15W @ 20Ω) and the ability to drive loads down to 8Ω, the SA-2 behaves less like a typical headphone amplifier and more like a compact Class A power amplifier.
Modern flagship headphones — especially planar magnetics — demand current, not just voltage.
The SA-2 delivers that current effortlessly, maintaining composure where lesser amplifiers begin to flatten or harden.
Fully Discrete, Fully Balanced — Done Properly
This is a true quad-channel, all-discrete Class A design.
No op-amps. No shortcuts.
• Rohm ultra low-noise matched input transistors
• Multi-stage current amplification
• ON Semiconductor output devices with up to 4A drive per channel
The result is a presentation that feels:
• Effortless
• Organic
• Highly resolving without sounding clinical
How It Compares to Other Top Headphone Amplifiers
Many amplifiers today fall into two categories:
-
Ultra-clean but sterile (THX / measurement-focused designs)
-
Warm but underpowered (entry-level Class A designs)
The SA-2 sits right in the sweet spot:
• More natural and engaging than THX-style amplifiers
• More powerful and controlled than most Class A designs in this category
• More versatile than many single-purpose headphone amplifiers
In practice:
• vs THX-based amps → more depth, body, and realism
• vs mid-tier Class A amps → significantly more power and control
• vs speaker amp setups → cleaner, purpose-built headphone performance
This is why the SA-2 is increasingly being recommended as a reference all-rounder for serious headphone systems.
Designed for Real Systems
• Balanced XLR + RCA inputs
• XLR / 4.4mm / 6.35mm outputs
• Preamp outputs (XLR + RCA)
• Gain modes for IEMs → Planars
• Output impedance modes for system tuning
• GND / LIFT switch for ground loop control
It works equally well as:
• A flagship headphone amplifier
• A high-quality Class A preamplifier
Measured Performance
• THD+N: –117 dB (32Ω @ 8W)
• Noise floor: < 0.83 µV
• Dynamic range: > 146 dB
• Frequency response: 20 Hz – 80 kHz ±0.1 dB
These translate into a black background, excellent separation, and effortless dynamics.
What It Sounds Like
• Dense, controlled low-end with real authority
• Natural, unforced midrange with texture and body
• Smooth, extended highs without glare
• Stable, layered soundstage with convincing depth
It presents music with weight, realism, and flow — not artificial sharpness.
Who Is This For?
• SA-1 owners looking for a clear upgrade in power and control
• Planar headphone users (Audeze, HIFIMAN, etc.) needing proper current drive
• Listeners who want Class A musicality without sacrificing performance
• Systems needing a high-quality preamplifier and headphone amp in one
Audiophile Shop — Our Take
The SA-1 was one of those rare amplifiers that over-delivered for its price.
The SA-2 goes further — moving into a higher class of performance altogether.
If you’re upgrading from the SA-1, the improvement is immediately noticeable.
If you’re comparing across the market, the SA-2 stands out as one of the most complete and well-balanced Class A headphone amplifiers available today.
In Summary
• True Class A sound with real power
• Excellent control over demanding headphones
• A musical, non-fatiguing presentation
• A single amplifier that can anchor an entire system
Warranty – Audiophile Store
All products purchased from Audiophile Store are covered under a Local Australian Warranty. This warranty includes:Repair, Replacement, or Refund: If a product is found to be faulty, we will either repair or replace it. If neither option is available, a full refund will be provided.In Addition to Manufacturer's Warranty: Our warranty is offered in addition to any warranty provided by the manufacturer.Australian Consumer Law Compliance: Your purchase is protected under the Australian Consumer Guarantee (ACCC).Locally Managed: All warranty returns and repairs are handled within Australia through local repair centres for faster service and peace of mind.Ongoing Support: We offer customer support for the lifetime of the product. Feel free to contact us anytime with questions or concerns.
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