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Ovation 1721 User Manual

240 watt
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Engineered for Art

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Summary of Contents for Ovation 1721

  • Page 1 ™ Engineered for Art...
  • Page 2 ™ Engineered for Art Model 1721 240 Watt Stereo Power Amplifier User Manual May 2017 rev 1.0 w w w . o v a t i o n h i f i d e l i t y . c o m...
  • Page 3 Model 1721 Stereo Power Amplifier Owner’s Manual Welcome to Ovation High Fidelity. Thank you for purchasing this Ovation High Fidelity product. We have taken every care in the design, engineering and manufacture to ensure the highest levels of craftsmanship and quality so that you will have many years of trouble free operation and musical enjoyment.
  • Page 4 • The costs of returning the product back to the company under the 30- day money back guarantee are for the account of the purchaser. The Ovation High Fidelity Company reserves the right to modify and/or make technical and/or design changes to the design of its products without obligation to prior purchasers w w w .
  • Page 5 You may not place any Ovation High Fidelity product directly on a carpet as this will obstruct airflow and will lead to overheating. This amplifier will run warm to the touch – this is quite normal.
  • Page 6 There are lethal mains voltages present inside the unit. DO NOT open the product under any circumstances - If faulty, refer it back to Ovation High Fidelity if still within the warranty period or to a qualified, authorized service engineer if not.
  • Page 7 Model 1721 Front Panel Model 1721 Rear Panel Key The figure above identifies the key components on the Model 1721 power amplifier rear panel. w w w . o v a t i o n h i f i d e l i t y . c o m...
  • Page 8 Unbalanced Input Connection The figure above shows how to connect your Model 1721 power amplifier to your preamplifier. Note that you do not need to connect both the single ended and the balanced interconnects – you only need to connect the single ended inputs or the balanced inputs.
  • Page 9 Model 1721 Stereo Power Amplifier Owner’s Manual Powering ON and OFF To power up the amplifier, depress the black pushbutton located in the center of the front panel. The GREEN indicator LED beneath the pushbutton switch will flash twice per second for 5 seconds. You will hear a click after 3 seconds or so - this is the in-rush power limiting bypass relay energizing.
  • Page 10 RED and remain ON. The loudspeakers will remain disconnected until the DC offset ceases. If the LED remains illuminated and RED even after powering down and then up again, you should get in touch with Ovation High Fidelity through the ‘Contact’ page on our website.
  • Page 11 Important! Always unplug the unit from the mains before attempting to replace the fuse! Use a flat bladed screw driver and gently lever open the fuse drawer Replace the Model 1721 fuse with the ratings as indicated below Mains Voltage Fuse Rating Remarks slow acting ‘T’...
  • Page 12 Model 1721 Stereo Power Amplifier Owner’s Manual How to Use the Trigger Input Facility On the rear panel, a ‘Trigger’ input is provided. This allows the amplifier to be powered up or down remotely from a preamplifier or a system controller equipped with a 12V trigger output.
  • Page 13 Model 1721 Power Amplifier If your unit is still not working correctly, kindly contact Ovation High Fidelity via the ‘Contact’ page at www.ovationhifidelity.com w w w . o v a t i o n h i f i d e l i t y . c o m...

  • Page 14: Specifications

    Model 1721 Stereo Power Amplifier Owner’s Manual Specifications Model 1721 Stereo Power Amplifier General Description 240 Watt RMS, wide bandwidth, ultra-low distortion Current Mode Topology (CMT) power amplifier equipped with non- invasive over-current and DC Offset protection. Power up/Power down muting utilizing solid state loudspeaker relay and in- rush current limiting during mains power-up.
  • Page 15 Model 1721 Stereo Power Amplifier Owner’s Manual Glossary – Some General Terms Alternating Current – the type of electricity supply used in normal house wiring and to power consumer appliances like TV’s, washing machines and high fidelity systems Analog to Digital – an electronic technique whereby an analog signal is sampled at short, regular intervals and the sampled...
  • Page 16 Model 1721 Stereo Power Amplifier Owner’s Manual Owners Information Date Purchased: ____________________________________ Dealer (if Applicable): ________________________________ Warranty Registration Date: ___________________________ Serial Number: _____________________________________ w w w . o v a t i o n h i f i d e l i t y . c o m...
  • Page 17 Model 1721 Stereo Power Amplifier Owner’s Manual w w w . o v a t i o n h i f i d e l i t y . c o m P a g e 16 | 17...
  • Page 18 Model 1721 Stereo Power Amplifier Owner’s Manual The Ovation High Fidelity Company Norfolk, England www.ovationhifidelity.com w w w . o v a t i o n h i f i d e l i t y . c o m...