
Eventually, I relocate the two Ferrum reps into the living room, where they are required to demonstrate their mutual capabilities as a preamplifier unit in comparison with the Brinkmann Marconi. While listening to one of my test tracks twice through the Marconi, I am once again intrigued how much better this system sounds since a Hypsos powers the Auralic Aries Femto. I am even more staggered when the OOR takes over the preamplification in conjunction with a second Hypsos. Now the system in the living room catches up yet another step closer to the one in the study: The midrange sounds much more differentiated and open, while the playback has improved dynamically a bit as well. Perhaps I should have the Marconi somewhat dusted off by the manufacturer after almost 20 years of continuous operation. In any case, the OOR and its partner cut an excellent figure as a preamplifier.
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Listened with (listening room)
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|
|---|---|
| NAS | Melco N1Z/2EX-H60 with external AudiaZ linear power supply, WDMyCloud |
| Streamer | Auralic G2.1 with 2TB SSD |
| Up-sampler | Chord Electronics Hugo M-Scaler with Ferrum Hypsos |
| D/A converter | Chord Electronics DAVE with linear power supply |
| LAN switch | SOtM sNH-10G i with Keces P8, Ansuz PowerSwitch D-TC Supreme |
| 10 MHz clock | SOtM sCLK-OCX10 with Keces P8 and AudiaZ DC cable |
| Headphone amp | SPL Phonitor x |
| Headphones | Audeze LCD-X, SendyAudio Aiva and Peacock |
| Cables | Goebel High End Lacorde Statement, Audioquest Dragon HC and Tornado (HC), Swiss Cables, SOtM dBCL-BNC, AudiaZ Clock cable, Ansuz Digitalz D-TC Supreme and Mainz D2 |
| Accessories | AHP sound module IV G, Audioquest Niagara 5000 and 1200, Synergistic Research Active Ground Block SE, HMS wall sockets, Blockaudio C-Lock Lite, Artesania Audio Exoteryc, ADOT media converter (2x) with Keces P3 and SBooster BOTW P&P Eco MKII, Singlemode Duplex optical fibre cable |
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Listened with (living room)
|
|
|---|---|
| D/A converter | Mytek Manhattan II |
| Streaming bridge | Auralic Aries Femto with Ferrum Hypsos |
| Pre amp | Brinkmann Marconi |
| Power amp | Eintein The Poweramp |
| Loudspeaker | Acapella Violon VI |
| Cables | Swiss Cables Reference (Plus), Habst Ultra III, SunWire Reference |
| Accessories | Einstein The Octopus, HighEndNovum Multivocal Resonator, Harmonix feet, Audioquest Jitterbug, Franc Audio Accessories and Acoustic System feet, Sieveking Quantum Noise Resonator |
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Manufacturer's specifications
Ferrum OOR
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|---|---|
| Gain | -4dB, +6dB, +16dB balanced, -10dB, 0dB, 10dB unbalanced |
| Circuitry | Fully balanced, proprietary discrete power amp technology |
| Inputs | XLR, RCA, 2.5mm power supply connector (positive center contact), special 4-pin connector for DC power |
| Headphone outputs | 4-pin XLR, 6,35mm jack socket |
| Frequency response | 20Hz – 100kHz (±0,1dB) |
| Output power | 400mW@300Ω, 2W@60Ω unbalanced, 1.600mW@300Ω, 8W@60Ω balanced |
| Input impedance | 94kΩ |
| Output impedance | 22Ω preamp output (unbalanced), 44Ω preamp output (balanced), <0,3Ω headphone outputs |
| Power consumption | <15W (idle) |
| Power supply | 100/240V AC into 22-30V DC |
| Dimensions (W/H/D) | 21.7/5.0/20.6cm |
| Weight | 1.8kg |
| Price | 2,000 euros, incl. Hypsos 3,000 euros |
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Manufacturer
HEM Sp. z o.o.
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|---|---|
| Address | Aleje Jerozolimskie 475 05-800 Pruszków Poland |
| Phone | +48 22 823 7238 |
| info@hem-e.com | |
| Web | hem-e.com |
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