Headphones / Earphones
HEADPHONE
Open-type headphones
AKG/K812 + CP1H headphone amplifier set

AKG / K812 + CP1H headphone amplifier set

Variations

This is a great value bundle set featuring the top-of-the-line open-back headphones "AKG/K812" and the high-quality 1-channel headphone amplifier "CLASSIC PRO/CP1H"! Experience the full potential of the K812 and enjoy a higher-quality AKG sound.

■Reliable 3-Year Warranty Model! From AKG, a leading Austrian audio brand, comes the reference model "K812." This high-end monitor headphone incorporates cutting-edge acoustic technology cultivated over many years since its founding in 1947.

■The newly developed transducer employs the largest 53mm diameter driver unit in AKG's headphone history. Boasting an ultra-powerful efficiency of 1.5 Tesla magnetic flux density, its driving force far surpasses conventional headphones, resulting in an exceptionally rich sound information and accurate reproduction of even the most subtle nuances.

■The ultra-thin, two-layer "Two-Layer Voice Coil System" offers excellent sound response, achieving an astonishing frequency response of 5Hz to 54,000Hz, compatible with high-resolution audio sources. It reproduces a deep, immersive soundscape reminiscent of a live performance, and a three-dimensional spatial expression where sound seems to come from 360 degrees.

■The large ear pads completely cover the ears and are made of thick, supple protein leather, providing a snug, comfortable fit.

■The breathable mesh headband features the "self-adjusting mechanism" familiar from the "K series." The headband automatically adjusts to your head size, providing a lightweight and stress-free wearing experience.

■With a low impedance of 36Ω, it can reliably drive not only home and studio audio equipment, but also portable audio devices such as laptops and iPods/iPhones.

■The cable is detachable. Recabling with a higher-grade cable is possible, providing peace of mind in case of cable breakage.

■A stylish wooden headphone stand is included.

■Each pair of headphones has a unique serial number.

■This model is famously featured on the cover of Eikichi Yazawa's best-of album, "ALL TIME BEST ALBUM II," released on July 1, 2015.

■Specifications
• Type: Open-air type
• Sensitivity (1kHz): 96dB SPL/mW
• Frequency Response: 5Hz to 54,000kHz
• Maximum Input Power: 300mW
• Impedance: 36Ω
• Earpads: Over-ear, Protein Leather
• Plug: 3.5mm Stereo Mini (Gold Plated)
• Cable: Approx. 3.0m (Single-sided, Detachable)
• Weight (excluding cable): Approx. 398g
• Accessories: Wooden headphone stand, 3.0m straight cable (OFC), 6.3mm adapter plug (Screw-type, Gold Plated)

■The CP1H is an ideal headphone amplifier for audio enthusiasts, multimedia/streaming users, and sound engineers in live performance settings. In addition to general consumer headphones/earphones, it also supports reference headphones and low-sensitivity high-end headphones. It can drive headphones from 15Ω to 600Ω with ease, outputting a smooth and dynamic sound.

■ Overview
- A headphone amplifier with high versatility and connectivity
- Switchable 3-channel stereo input: XLR/6.3mm combo, RCA, 3.5mm mini jack
- Headphone output can be selected from 6.3mm standard jack/3.5mm mini jack
- Uses carefully selected electronic components to achieve clear, high-quality sound
- Smooth rotary control for precise volume adjustment

■ Professional-Quality Design
- The CP1H is a headphone amplifier with reliable quality and reliability, designed for everyone from audiophiles and audiophiles to professionals, including streaming, multimedia applications, and live sound environments.

■ Overwhelming Driving Power
- Supports a wide impedance range from 15Ω to 600Ω. It effortlessly drives not only listening headphones and earphones but also high-impedance, high-end headphones for professional use, achieving a sound that is both smooth and powerful.

■ Extremely Firm to the Original Sound
- Achieves a flat frequency response from 20Hz to 80kHz, minimizing sound quality changes due to impedance differences. With a high signal-to-noise ratio, it reproduces a clear and three-dimensional sound field without the noticeable noise from the power supply or circuitry.

■ The Appeal of the OTL Circuit
- Employs a classic OTL amplifier circuit. Despite its simple configuration, it extracts a natural and information-rich sound, boasting a level of perfection that surpasses its price range.

■ Carefully Selected Internal Configuration
- Luxuriously uses high-quality parts and is equipped with a dedicated stereo volume control with minimal left/right difference. This achieves stable localization and consistent listening quality.

■ Abundant Inputs and Outputs
- Supports XLR/TRS (balanced) and TS (unbalanced) connections via NEUTRIK combo jacks. Furthermore, it features RCA and mini-TRS inputs, allowing connection to a wide range of devices including DACs, audio interfaces, smartphones, and PCs. Two headphone outputs are provided: standard and mini-TRS.

■Specifications
• Circuitry: OTL circuit, stereo amplifier using power adapter
• Frequency response: 20 Hz to 20 kHz, ±0.2 dB
• THD+N (at 10 mW): 0.0008%, 470-600 Ω @ XLR, 1 kHz @ 20 kHz B.W.
• Dynamic range: 113.5 dB @ 220 Ω load, XLR input
• Input connectors:
Input 1: NEUTRIK combo jack
Input 2: RCA
Input 3: 3.5 mm stereo mini
• Output connectors:
6.3 mm stereo standard jack
3.5 mm stereo mini jack
• Maximum output: 300 mW
• Single-ended input impedance: 90 kΩ
• Balanced input impedance: >14.7 kΩ
• TRS stereo mini gain: 22.4 dB
• RCA gain: 11 dB
• XLR gain: 2.6 dB
• Output load impedance: 15 Ω ~ 600 Ω
• Power Consumption: 6 W/0.25 A
• Power Supply: 24 VDC/10 W
• AC-DC Power Adapter: 90-264 VAC Input/24 VDC Output
• Dimensions (W×D×H): 162 × 104 × 53 mm
• Weight: Approx. 0.73 kg