Cyrus Mono X





Cyrus Mono X Power Amplifiers

1 pair of monoblock Power Amplifiers in brushed black.

Original RRP £3000.00

In Perfect Working Order.

In Excellent Condition ~ Superb ! 

Comes with:-  Instruction Manuals, Mains Leads, Original Boxes & Packaging.

 

Please note:- both amplifiers are the exact same colour / shade - any difference in the photos are due to lighting / camera effects.

 

Power amplifiers at this level of performance are more usually behemoths of iron and unnecessarily flashy styling. The Mono X is a dynamic mono amp conservatively rated at 150 Watts. However the dynamic power of the amp is capable of burst output (such as occurs in all music programmes) of over 1500 watts.

This dynamic amplifier requires a very special design to successfully provide the immense power required for a system sound as close to the original performance as possible. The power and subtlety of the Mono X combine to make it one of the world’s most able hi-fi amplifiers.

The Mono X power amplifier is packed with a long list of features including the famous Cyrus ‘zero-feedback’ circuit topology (delivering outstanding power with exceptional load tolerance), a massive power supply with many stages of voltage regulation and a sophisticated computer control system offering intelligent circuit protection, convection control to maintain the temperature of the amplifier within safe limits and local bus communications with other Cyrus components.

The harmonic distortion character of the Mono X is closely aligned to the response of the human ear. As output level reduces to lower levels where the ear becomes most sensitive to these effects, the distortion produced by the Mono X falls below measurable limits the result is exceptional musical resolution.

Power amplifiers have two primary tasks - i.e. voltage and current amplification of the input signal, to provide a large and powerful signal for the loudspeaker. Traditionally, in most power amplifiers, these functions are combined into one overall circuit topology. The Mono X splits these functions into dedicated circuits - the input voltage gain amplifier and the output current amplifier. The voltage gain amplifier uses a zero feedback complementary bootstrap cascoded 'class A' buffer which drives a precision resistor. The current developed in driving the resistor is mirrored in to another precision resistor which is 52 times greater in resistance. The voltage developed across the second resistor is 52 times greater, hence voltage gain. This voltage gain operation is buffered by a second zero feedback complementary bootstrap cascoded 'class A' buffer. The current amplifier is an error corrected bipolar emitter follower designed to drive equally well into all impedances. In the Mono X neither of these stages have any global feedback. The current amplifier completely isolates the precision voltage amplifier from the loading effects of the speaker. This arrangement enables the Mono X to preserve fine detail, even under the most arduous of dynamic conditions.

Electrical

  • Inputs - RCA phono or XLR balanced
  • Outputs - Twin BFA (bi-wire) connectors, RCA Chain out
  • Power Supply - 330VA Toroidal transformer
  • Communications - MC-Bus™ System Bus

Specifications

  • Continuous Power - 150W (into 8 Ohms) 240W (into 4 Ohms)
  • Burst Peak Power - 1500W
  • Distortion - <0.004%, (1kHz into 8 Ohms) <0.05%, (20Hz-20kHz into 8 Ohms)
  • Frequency Response - -3 dB at 0.5Hz and 130kHz
  • Slew rate - 700V/µS (filters bypassed)
  • Max output Current - 80 Amps peak to peak
  • Sensitivity (RCA input) - 380mV (for 50W into 8 Ohms)
  • Sensitivity (RCA input) - 660mV (for 150W into 8 Ohms)
  • Sensitivity (BAL input) - 775mV (for 50W into 8 Ohms)
  • Sensitivity (BAL input) - 1.3V (for 150W into 8 Ohms)
  • Input impedance - 19Kohm (RCA), 20Kohm (BAL)
  • Chain Output voltage - 660mV (for 660mV RCA or 1.3V BAL input)
  • S/N Ratio - 114dBA
  • Dimensions - (H x W x D) 73 x 215 x 360 (mm)
  • Weight - 5.5kg











We accept the following methods of payment:

  • PayPal – shipped to your confirmed PayPal address only.
  • Bank Transfer
  • Cheque – to be cleared before item dispatched.
  • Postal Order
  • Cash – on collection of item.
  • Credit / Debit Cards – we are not always in the office to accept calls, so please email us with your telephone number and a convenient time to call you back between 10am to 5pm.

Collection in person is welcome, from Nr Kidderminster, Worcestershire (DY13 9SQ), but please note we cannot accept PayPal payment if collecting in person – Paypal terms & conditions state that a Courier's Digital Signature is the only form of proof of delivery acceptable to them, and if you collect in person then this cannot be produced.

We also offer postage discounts on multiple items – please wait for invoice before payment.




UK Shipping:

  • FREE 24 hour courier to mainland UK.
  • ALL items are sent fully insured and trackable via reputable couriers.
  • We also use Royal Mail for smaller less valuable items.

International Shipping:

  • ALL items are sent fully insured and trackable via reputable couriers.
  • We also use Royal Mail?s ?Tracked & Signed? & ?Airsure? for smaller less valuable items.
  • Shipping to European destinations normally takes 2 to 5 working days.
  • Shipping to other Worldwide destinations normally takes 3 to 7 working days.

Collection in person is welcome, from Nr Kidderminster, Worcestershire (DY13 9SQ), but please note we cannot accept PayPal payment if collecting in person ? Paypal terms & conditions state that a Digital Signature is the only form of proof of delivery acceptable to them, and if you collect in person then this cannot be produced.

We also offer postage discounts on multiple items ? please wait for invoice before payment.




RETURNS are accepted within 14 days for refund (minus any postage costs incurred by ourselves) subject to the following:-  The goods must not be damaged or marked in any way / The goods returned must be in original and complete packaging, including all accessories as supplied. / A full refund cannot be given for incomplete, damaged or marked goods returned. / Special orders or customised items cannot be returned unless defective upon receipt. / The cost of returning cancelled goods will be at your expense. Please ensure that you have adequate insurance to cover for loss or damage.

The 60 DAY RETURN TO BASE WARRANTY is only applicable on fixed price items over £300 ? and excludes consumables like Valves, Projector Bulbs, Cartridges etc. For warranty issues please contact us, and return it using a fully insured and trackable service. If cost effective we will repair the item, if not then a full refund will be issued. All work must be carried out through Zip Audio. Under no circumstances will we warrant or cover any unauthorised third party repairs, this will automatically invalidate the terms of the warranty.

CUSTOMS & EXCISE:  All items entering a foreign country are subject to customs inspection and assessment of duties, taxes, and fees in accordance with that country's laws. It is important to understand that, if duties and taxes are assessed on an item we send you, they are collected from the recipient. Postage is charged to cover the expense of delivery only. Postage does not cover charges assessed by customs in any destination country. Also we cannot alter the value of items for customs purposes, as this invalidates our courier insurance.




Zip Audio is a specialist distributor of quality audio and video equipment from various sources ? dealers, liquidated stock, ex-demo, used, and part exchanged items.

We offer: -

  • 14 day no-quibble return policy
  • 60 day warranty on all fixed price items over £300
  • FREE 24 hour courier service to mainland UK
  • Worldwide shipping - all fully insured & trackable.
  • part-exchange facilities
  • and lots more........

 

WARRANTY & RETURNS

  • 14 day no-quibble return policy for refund on all items, minus any shipping costs incurred by ourselves.

  • 60 Day Return To Base Warranty on all fixed price (buy it now) items over £300.00, covering parts & labour ? excludes consumables like Valves, Projector Bulbs, Cartridges etc.