Acoustic Portrait Swara V2-Tube Preamplifier (Balanced)
Specification of the Acoustic Portrait Swara V2-Tube Preamplifier (Balanced)
Weight 5 kg
Dimensions 33.5 × 34 × 11 cm
SNR 104db
THD+N <0.03%
Frequency Response 10Hz – 22kHz
Tubes 2 x 6n2P
Output Impedance 280Ω
Number of Inputs 3 x Single Ended; Selection with remote & 2x balanced input and output.
Dimensions 13.5″ (W) x 13.2″ (D) x 4.3″ (H)


Vivek Jha –
One Of THE BEST pre-amps out there. Its cost to pleasure ratio is off the charts!! There are not too many reviews of this pre-amp & went with it on a hunch. Tubes are superb & this combined with my Yamaha PX-5 class D amp combined with Yamaha NS-777 & a Kicker subwoofer make for an outstanding combo, be it listening to Rock, Jazz or Indian ragas. Even a class D amp comes to life with this tube pre-amp. Now I have the power of a class D with the tonality of a tube. Oh YES!! Worth every rupee. It is actually superb.
Srikanth Dagay –
System Context
My living room chain consists of a Marantz ND8006 (network CD player/DAC) feeding a Denafrips Enyo R2R DAC via coaxial, which previously connected via RCA to a Marantz PM8006 integrated amplifier (used purely as a preamp), then to a Marantz MM7025 power amplifier driving Polk Audio ES60 speakers.
What It Replaced
The PM8006, though capable, was functioning as a compromised preamp. It offered only RCA connectivity, forcing the Enyo’s native balanced R2R architecture through a single-ended summing stage. Additionally, its microprocessor-controlled volume dial compressed all usable levels into the first quarter rotation, and its 600Ω output impedance created suboptimal impedance matching with the MM7025’s 30kΩ input.
Build Quality & Design
At its price point (~₹60,000), the Swara V2 Balanced is exceptionally well-executed. The chassis is robust with a substantial wooden front panel. The ALPS motorized potentiometer feels premium and operates smoothly. The build quality suggests this is engineering-first, not cost-cut. The XLR connectors are solid, and overall construction feels like it will survive decades of use.
Sound Quality Improvements
After 10+ hours of listening across jazz, classical, acoustic, electronic, and vocal genres, the improvements are concrete:
Soundstage & Separation: Instruments no longer cluster together. In complex passages (orchestral recordings, ensemble jazz), each voice occupies distinct acoustic space. Vocals sit forward and present without losing instrumental detail behind them. This isn’t artificial widening—it’s clarity that was always there but masked.
Noise Floor: The background is noticeably quieter. With no music playing, there’s an absence of the subtle hash that was previously present. This 10dB SNR improvement (from the Enyo’s native 120dB XLR vs. 110dB RCA summing) is perceptible on quiet passages.
Tonal Character: The 2 x 6N2P tubes add a lush, organic quality without coloration. Vocals gain weight and presence without becoming syrupy. The preamp doesn’t romanticize—it clarifies while adding harmonic richness. This is tube design done right: enhancement without distortion.
Volume Control: Despite the Alps potentiometer’s quality, my volume dial still sits between 8-9 o’clock in my listening position (12×20 room, seated along the breadth). I had hoped to see the dial move toward 10-11 o’clock for better granularity, but the linear response across the full range is more important than dial position aesthetics. The smooth curve means I have precise control at my preferred levels.
Cons
Remote-Only Source Selection: The lack of a physical input selector switch on the unit is a real limitation. While the remote works smoothly, anyone with multiple sources should be aware: if the remote is misplaced or the IR receiver fails, you lose source switching capability. At this price point, a front-panel selector should be standard. This feels like cost-cutting on an otherwise premium product.
Cons Worth Noting
The preamp does generate mild tube hum near the speakers (normal for tube designs), though it’s inaudible from listening position. Placement away from heat sources is necessary due to tube operation.
The Larger Picture
What makes the Swara V2 special isn’t that it adds warmth or “magic.” It’s that it finally lets high-quality source components operate at their intended performance level. The Enyo is engineered as a true balanced R2R DAC with 4 resistor ladders per channel. Running it through RCA was like owning a Ferrari and driving it in third gear. The Swara V2 removes that bottleneck. It’s an architectural fix, not a cosmetic upgrade.
Highly recommended for anyone with a balanced DAC, quality power amp, and the need for multiple input integration. At ₹60,000, it’s positioned fairly against competitors. The sound improvements are substantial and verifiable across all genres. Build quality is solid. The only reservation is the remote-dependent source selection—a physical switch would have made this a near-perfect preamp.
After 10+ hours across diverse material, this one stays! Last but not the least, it’s designed and made in India which makes me a proud owner 🙂