Telefunken TF17 FET Alchemy Series, Microphones
Home / Telefunken TF17 FET Alchemy Series, Microphones
Home / Telefunken TF17 FET Alchemy Series, Microphones
Iconic German Midrange Authority in a Modern, Phantom-Powered Workhorse
For decades, the classic U47 tube microphone has been heralded by top-tier engineers as the holy grail for lead vocal tracks due to its distinct, rich midrange punch and robust low-end authority. However, deploying vintage tube hardware in fast-paced commercial project studios, voiceover suites, or live touring setups comes with the logistical headache of delicate external power supplies, fragile multi-pin cables, and unpredictable tube maintenance.
The Telefunken TF17 FET elegantly eliminates these boundaries. By combining a true vintage-spec K47 capsule structure with a bulletproof phantom-powered solid-state circuit, this high-performance condenser runs on standard 48V phantom power while retaining that legendary, upfront European character. It is a specialized vocal and instrument engine—delivering immediate weight and presence to a track so that it stakes its claim right in the center of a dense mix without requiring heavy digital processing.
The Alchemy of the K47 Capsule & Carnhill Transformer:
The unmistakable punch of the TF17 begins with its premium capsule architecture. It houses a custom-engineered, center-terminated K47-style capsule—which is a meticulous single-membrane variant of the exact same transducer blueprint used in Telefunken's flagship TF47 tube microphone.
Instead of feeding a tube gain network, this capsule drives a custom-designed, fully discrete Class-A JFET amplifier circuit. This ultra-clean solid-state infrastructure feeds directly into a premium, custom large-format nickel-iron core output transformer manufactured in the UK by OEP/Carnhill. This meticulous hardware coupling gives the TF17 its unique analog mojo—smoothing out harsh digital transients and adding a rich, tape-like density to the audio signal.
A Bold, Mid-Forward Tuning for Mix-Ready Punch:
Unlike its sister mic (the open and airy, C12-styled TF11), the TF17 is intentionally voiced for a punchy, mid-forward presence. The frequency curve exhibits a robust, authoritative low end and a beautifully warm, detailed midrange. A gentle presence boost in the speech intelligibility zone ensures that lead vocals, spoken-word voiceovers, rap bars, and solo instruments step forward with absolute clarity. The top end is intentionally smooth and rounded off, preventing sibilant vocalists, biting brass instruments, or harsh electric guitar cabinets from sounding brittle or piercing.
USA Heritage and Tour-Ready Ergonomics:
Every single TF17 microphone is painstakingly hand-assembled, tuned, and tested in South Windsor, Connecticut by Telefunken’s elite team of microphone technicians. Transistors are strictly matched for noise floor optimization, and capsules are frequency-calibrated to guarantee rigid production tolerances. The microphone body is finished in a striking, durable matte black powder coat complemented by premium black nickel hardware. This compact, low-profile design allows it to be easily positioned in tight spaces—such as directly in front of guitar amplifiers, close to brass sections, or suspended inside specialized vocal booths.
GERMAN U47-INSPIRED VOICING: Voiced for a bold, mid-forward character that adds instant authority, warmth, and vintage presence to any source.
K47-STYLE CENTER-TERMINATED CAPSULE: Utilizes a premium single-membrane version of the precision transducer core found in top-tier tube microphones.
PREMIUM OEP/CARNHILL TRANSFORMER: Features a large-format UK-made nickel-iron core transformer for classic hardware thickness and low-end definition.
ULTRA-LOW SELF-NOISE FLOOR: High-performance discrete JFET amplifier circuit delivers an exceptionally quiet 4 dBA self-noise specification.
HIGH-HEADROOM SPL HANDLING: Easily handles intense sound pressure levels up to 135 dB SPL without distortion, making it perfect for loud guitar cabs and brass.
SMOOTH, NON-FATIGUING HIGH END: Tailored high-frequency response tames sibilance and modern digital harshness naturally.
PREMIUM THROUGH-HOLE COMPONENTS: Assembled with high-grade UK-made polystyrene film capacitors and Nichicon Fine Gold electrolytic components.
RELIABLE 48V PHANTOM DRIVEN: Offers world-class studio condenser fidelity without the hassle of proprietary multi-pin cables or external tube power bricks.
STEALTH MATTE BLACK CHASSIS: Rugged, travel-friendly metal body finished in deep matte black powder coat with durable black nickel appointments.
HAND-BUILT & CALIBRATED IN THE USA: Proudly crafted, individually burned-in, and sonically verified at Telefunken's Connecticut facility.
| Feature | Specification |
| Microphone Type | Large-Diaphragm FET Condenser |
| Polar Pattern | Cardioid (Fixed) |
| Capsule Core | TK47S (K47-Style Center-Terminated, Single Membrane) |
| Amplifier Circuit Type | Proprietary Class-A Discrete JFET Layout |
| Output Transformer | Custom OEP/Carnhill Large-Format Nickel-Iron Core (UK-Made) |
| Frequency Range | 20 Hz – 20,000 Hz (±3 dB) |
| Sensitivity Metric | 14 mV/Pa |
| Maximum SPL Handling | 135 dB SPL (1% THD) |
| Equivalent Self-Noise Floor | 4 dBA (A-weighted) |
| Signal-to-Noise Ratio (SNR) | 90 dBA |
| Output Impedance | 110 Ω |
| Power Requirement | +48V Phantom Power |
| Output Connector | Heavy-Duty XLR 3-Pin Male |
| Chassis Color/Finish | Matte Black Powder Coat with Black Nickel Hardware |
| Microphone Dimensions | 175 mm L x 46 mm Diameter / 6.88" L x 1.81" Diameter |
| Microphone Net Weight | 545 g / 1.2 lbs |
| Reference Parameter Target | 0 dBu = 0.775V (Specifications subject to change without notice) |
1 x Telefunken TF17 FET Alchemy Series Condenser Microphone Main Unit
1 x Telefunken M 703 Lightweight Low-Profile Studio Shockmount
1 x Telefunken M 782 Rigid Utility Stand Mount
1 x Telefunken MC11 Compact Protective Zippered Microphone Case
1 x Premium Embroidered Velvet Microphone Protection Sleeve
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