Rothwell Audio Iridium Valve Phono Stage

  • £1,375.00
  • (FREE UK Delivery)
  |   Usually dispatched within 24 hours

The Iridium is a valve phono stage for moving magnet and high-output moving coil cartridges.

Valve phono stages from Rothwell aren't new - the first one dates back to 1990 with pre-production prototypes going back to the 1980s. Remember, that was back when CD was a relatively new medium, most integrated amps and pre-amps still had on-board phono stages and the very idea of an out-board phono stage was pretty much unheard of. A valve outboard phono stage was very radical at the time and companies like Musical Fidelity or Cambridge Audio hadn't even started making outboard phono stages. With a quarter of a century's experience in phono stage design, the quality of the Iridium is assured.
The gain stages in the Iridium are built around ECC83 valves, chosen for their proven track record in small signal audio amplification and because they are widely available and easy to replace when required. RIAA equalisation is achieved passively with audiophile polypropylene capacitors and precision resistors, the valve heaters are powered by a regulated DC supply to eliminate low level hum, the HT supply is multi-filtered to eliminate ripple and separate left/right filters are used to minimise crosstalk and internal wiring uses solid-core silver-plated oxygen-free copper with PTFE insulation. No global feedback is used.
The cliche of valve "warmth" implies a distinct colouration which the Iridium simply doesn't have. Instead the listener enjoys very finely revealed detail, a wide and deep soundstage and freedom from harshness at high frequencies. Dense recordings with many overdubs reveal all the individual parts with each instrument having room to breathe. The acoustics of the recording environment are also revealed, giving a satisfying sense of scale.
Technical Specifications:
  • Gain: 47dB
  • Input Impedance: 47k + 150pF
  • Output Impedance: 75R
  • Sensitivity for 500mV o/p: 2.2mV @ 1kHz
  • Headroom: 35dB
  • Signal/Noise: >87dB (mm)
  • Power Supply: Internal
  • Dimensions: 75 x 425 x 240 mm
  • Weight: 5.1kg

We endeavour to despatch same day for orders placed up to 12 noon on available stock items (items with stock message "Usually dispatched within 24 hours"). Please remember to check with us first for a physical stock check if next day delivery is important to you. Any items with stock message "Usually dispatched within 72 hours" are items that we do not hold in stock but order in from the importer or manufacturer as soon as a customer order is recieved. Occasionally these may be delayed beyond 72 hours due to importer/manufacturer stock levels but we will inform you as soon as we can if this is the case.

UK ORDERS:  We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Non Mainland locations - Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland may take a day or so longer and are not Free of Charge. Smaller items are delivered using Royal Mail recorded delivery or special delivery. Larger items are delivered using a courier service such as Interlink Express, DPD, UPS or DHL. 

INTERNATIONAL ORDERS: We offer competitive rates which can be confirmed by email. Please just ask – we will need a full delivery address and telephone number. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using DPD, DHL or UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Turntableworld or by the courier with a request for any further information required. Customs duties do not apply for shipments into any EU country (for a full list please refer to the EU Country List). Customs duties can apply for countries outside of the EU. Customers in these countries are responsible for all taxes and duties incurred when the items enter their country.

COLLECT IN STORE OR HOME INSTALL:At the request of the manufacturer some items cannot be supplied by mail order but you can click and buy them and then elect to collect them from our store or arrange a home install (if applicable). Applicable items clearly state that they are Collect in store or home install. Once ordered you will receive a message prompting you to contact us by phone or email to arrange for us to deliver and install or to reserve and collect from our store at your convenience, you will also be advised of the delivery time / stock availability as not all Home install / collect in store items are held in stock. 

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