Allnic HPA-15000 OTL/OCL Rør Hovedtelefon Forstærker
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The Ultimate Flagship Tube Headphone Amplifier
Allnic proudly presents the HPA-15000 OTL/OCL, our uncompromising flagship tube headphone amplifier —
a true milestone in the pursuit of sonic purity and high-end headphone performance.
This revolutionary amplifier redefines the limits of tube design with its OTL (Output Transformer-Less) and
OCL (Output Capacitor-Less) architecture, completely removing output transformers and capacitors from the signal path.
The result is unmatched clarity, free from distortion, coloration, and energy loss.
Building on the legacy of the acclaimed HPA-10000, the HPA-15000 has been entirely re-engineered from the ground up,
featuring a newly designed vacuum tube topology that pushes headphone listening to a new level of musical immersion.
In addition, Allnic offers an optional Direct Ribbon Headphone Terminal for RAAL,
a dedicated 4-pin XLR male output directly connected to nickel-permalloy matching transformers with pure PC-silver wiring.
This allows direct connection without the conventional RAAL interface box —
delivering an exceptionally fast, transparent, and open high-frequency sound, revealing a whole new dimension of realism.
From jazz and classical to electronic and rock, the HPA-15000 delivers effortless control, breathtaking detail,
and a noise floor so low it disappears into the music — making silence part of the performance.
If you seek the ultimate expression of headphone amplification,
the HPA-15000 OTL/OCL isn’t just a headphone amp — it’s a new standard in listening.
OTL/OCL Architecture
- Eliminates both output transformers and coupling capacitors
- Achieves absolute signal purity with no distortion or bottlenecks
🔹 Massive Output Power
- Delivers up to 10W of pure tube output
- Drives headphones ranging from 15Ω to 600Ω
🔹 Flexible Connectivity
-
4 headphone outputs:
• 2 × 6.3mm TRS (unbalanced)
• 2 × 4-pin XLR (balanced) -
Optional: RAAL Direct Ribbon Headphone Terminal — dedicated 4-pin XLR output directly linked to nickel-permalloy matching transformers with pure PC-silver wiring.
No RAAL interface box required, delivering ultra-fast, transparent, and open sound. - RCA pre-out for use as a high-gain tube preamplifier (+16dB)
- 5 analog inputs: 3 × RCA, 2 × XLR
🔹 Premium Volume Control
- 61-step Constant Impedance Attenuator (CIA) — same design as Allnic’s flagship preamplifiers
- Maintains tonal integrity and dynamics across the entire volume range
🔹 Meticulous Tube Topology
- ECF802 (triode/pentode) – first-stage voltage amplification and feedback
- 6414 (dual triode) – phase inversion and driver stage
- 6C41C (triode) – SEPP (Single-Ended Push-Pull) output stage
👂 For the True Connoisseur
The HPA-15000 OTL/OCL is crafted for those who demand more than performance —
for those who listen not just with their ears, but with their soul.
A reference amplifier for the most discerning audiophiles.
|
Category |
Specification |
|
Vacuum Tubes |
6C41C × 4 / 6414 × 2 / ECF802 × 2 |
|
Output Power |
10W |
|
Output Impedance |
15Ω – 600Ω |
|
Voltage Gain |
+32dB |
|
Headphone Outputs |
6.3mm TRS × 2 / 4-pin XLR × 2 / (Optional RAAL Direct Ribbon Terminal) |
|
Analog Inputs |
RCA × 3 / XLR × 2 |
|
Pre-Out |
RCA (L/R) |
|
Frequency Response |
20Hz – 20kHz (±0dB) |
|
Dimensions (W × H × D) |
43 × 21.5 × 39 cm (17 × 8.5 × 15.5 in) |
|
Weight |
17.6 kg (39 lbs) |