RME ADI-2 Pro Anniversary Edition AD/DA Converter

RMEʼs anniversary reference AD/DA converter is a host of devices all put together into one unit, with a simple and mostly automated way of using it right out of the box. A unit with the industryʼs biggest footprint per feature ratio, excellent tech specs, crystal clear and transparent sound signature, and two extremely powerful headphone outputs. RME's anniversary reference AD/DA converter is:

• A high-end AD/DA converter in professional studio quality
• A double headphone amplifier in true high-end quality
• A USB DAC like no other - the most versatile and capable one
• A high-end AD/DA frontend and headphone amp for iPad / iPhone
• A multi-format converter (AES, SPDIF, ADAT) with monitoring function
• A DSD record and playback solution
• An AD/DA frontend for audio measurement at up to 768 kHz sample rate

HeadAMP - Four Output Stereo Headphone Amp Overview

Most home recordings involve from one to four people, any or all of whom are
going to need headphone monitoring. The monitor amp would be connected
to the tape deck?s headphone output or a mixer output so that the performers
can hear themselves and each other. Of course the same application can apply
to band rehearsals and even home entertainment. HeadAMP provides amplification
and individual volume control for up to 4 headsets. It can be driven by either line-
level or headphone amplifier signals (mono or stereo).

HeadAMP - Four Output Stereo Headphone Amp Specifications:

Signal To Noise Ratio >90dB
IMD (SMPTE) 0.01%
Maximum Input Level +14dBV
Maximum Output Level 20dB per channel
Output Impedance 51 Ohms per channel
Output Connectors Four stereo 1/4? headphone outputs
Power Requirements 12V DC (Adapter included) 
Total Harmonic Distortion

• Ultra-compact monitor headphone amplifier for studio and stage applications
• Personal \'\'more me\'\' mixer – mix a mic plus a monitor signal and hear them via headphones
• Flexible Mic In and Mic Through connectors plus Ground Lift switch
• Stereo Monitor input with dedicated Monitor Level control and Mono/Stereo switch

• High-power headphone output on 1/4\'\' and 1/8\'\' jack connectors
• DC 12 Vadapter included
• 3-Year Warranty Program*
• Designed and engineered in Germany

The PHDA02 - a reference class headphone amplifier with Stereo, Mono, and Dual Mono operation modes.

In Stereo mode, the L/R input signal is fed to the left and right earphones while the volume level is set by the Stereo/Left control. The front panel inputs provide simultaneous connection of two headphones in parallel. In Mono mode, the left and right channels are summed, and the resulting mono signal is fed to both the left and right earphones. Again, volume is governed by the Stereo/Left control. In Dual Mono mode, the left and right channels can be used independently with individual level controls for the left and right earphones.

The PHDA02 operates with all headphones with an impedance of 8 up to 200 Ohms. Impedance matching is achieved by a specially designed switchable transformer. Uncommon and costly, this solution provides superior performance, dynamic range, and signal-to-noise ratio at all loads.

Combo input sockets allow for balanced XLR and unbalanced TS headphone connection while parallel XLR outputs facilitate daisy chaining multiple units. The integrated power supply operates with mains from 100 VAC to 240 VAC.

The PHDA02 is equipped with low-noise op amps, and the output amplifiers' discrete power transistors are mounted on heatsinks. Dimensions are 1 U 9.5“.

Overview

With Sennheiserʼs HDVD 800, sound is perfect. The HDVD 800 is able to connect with digital sources and is equipped with a high-quality Burr-Brown digital/analog converter (DAC) that converts digital audio data into analog signals with a resolution of 24 bits and a sampling rate of up to 192 kHz. This enables the HDVD 800 to transmit the entire frequency spectrum of high-end audio sources without any loss of frequencies.

In addition to the symmetrical inputs, the HDVD 800 also has an asymmetrical input socket; incoming signals are symmetrized before further processing takes place. Digital sources can be connected to the rear of the unit via an XLR (AES/EBU) input, optical and coaxial (S/PDIF) digital inputs or USB. All digital inputs accept signals up to 24 bit at 192 KHz*. Designed and manufactured in Germany, this high-end, solid-state amplifier harmonize perfectly and deliver an ultimate acoustic performance when paired with any of Sennheiserʼs audiophile headphones.

Features
D/A transducer for all common formats up to 24 bit / 192 kHz
D/A transducer can be used for CD and DVD players
AES/BU, S/PDIF, USB inputs
Symmetrical (XLR) and asymmetrical (RCA) analog inputs
Symmetrical output
Sockets for four sets of headphones (two of which symmetrical)

• Distributes the signal of 1 audio source to 4 sets of headphones
• 4 channels with separate level controls and headphone outputs
• All connections via 6.3 mm (1/4“) jacks
• Operation via supplied power unit