Ios Reference
The Ios Reference is a dedicated moving-coil phono stage built in Rega's Reference casework, with a four-stage fully symmetrical design and balanced XLR output. It is aimed at turntable owners using low-output MC cartridges such as the Apheta.
- Dedicated moving-coil phono stage
- Four-stage, all-symmetrical amplifier
- 1:10 step-up transformer in the first stage
- Adjustable gain and load control
- Balanced XLR output with ultra-low capacitance cabling
- Mute and mono functions
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The Ios Reference is a phono stage devoted solely to moving-coil cartridges. It uses a four-stage, fully symmetrical amplifier. The first stage is a 1:10 step-up transformer whose loading and Zobel DC resistance correction network can be matched to the cartridge. The second and third stages are symmetrical class A designs, with the RIAA equalization split between passive high-frequency and active low-frequency parts. The fourth stage is an active filter built around a very high bandwidth operational amplifier.
The power supply is a symmetrical, discrete tracking design with fast diodes and a low-noise voltage reference. Each stage has its own local supply and LED-referenced current generators. Polypropylene capacitors are used in the signal path, with 1% tolerance parts in the RIAA equalization stages.
Controls include adjustable gain and load, plus mute and mono functions. Inputs use gold-plated sockets, and the output is balanced XLR with ultra-low capacitance cabling. The unit sits in the Reference range casework, matching the Isis and Osiris.
Specificații
- Marcă
- Rega
- Model
- Ios Reference
- Categorie
- Hi-Fi și audio pentru casă › Alt Hi-Fi
Audio
- Cartridge type
- Moving coil (MC)
- Amplifier design
- Four stage, all symmetrical
- First stage
- 1:10 step-up transformer
- Second stage
- Symmetrical compound pair class A
- Third stage
- Symmetrical class A differential amplifier
- Fourth stage
- Active filter
- Gain and load
- Adjustable
- Noise floor
- Reduced
Inputs
- Input sockets
- Gold plated
Outputs
- Output
- Balanced XLR
- Cabling
- Ultra-low capacitance
Controls
- Mute function
- Yes
- Mono function
- Yes
Power
- Power supply
- Symmetrical discrete tracking
- Supply regulation
- Localised supply per stage, LED referenced current generators
Physical
- Casework
- Reference range
- Width
- 434 mm
- Depth
- 350 mm
- Height
- 97 mm