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The OPPO PM-1 Planar Magnetic headphone offers a different way of thinking about planar magnetic technology.
The PM-1 is characterised by a marriage of natural, dynamic, and engaging sound with an emphasis on comfort and reduced weight. It is a result of many years of R&D led by a team of passionate audio and acoustics engineers, chemical and material scientists, and audiophiles. The technology encompasses a wide range of innovative solutions that deliver exceptional performance.
The advantages of planar magnetic technology are based on the fact that in a planar driver, sound is generated by a very thin and light diaphragm that is driven evenly over the entire radiating area. Sound, entering our ear, has a planar wave front at the so called ear reference point (ERP), with all spectrum components in phase. A typical dynamic headphone driver, due to its phase irregularity, disrupts that coherence, resulting in less than perfect signal peak reconstruction, especially of very short impulses. A planar magnetic driver has another advantage that relates to its purely resistive impedance. It has a flat conductor pattern that does not have any inductive component, which eliminates inductance related IM distortion, common in dynamic headphones. A resistive load also ensures that any amplifier will drive the headphones without any changes in spectral balance.
OPPO uniquely integrates many innovations and proprietary methods developed over the years with the latest breakthroughs in materials and manufacturing techniques. Results of this research, focused on eliminating issues affecting many planar magnetic headphones, such as low sensitivity, weight, insufficient diaphragm stability, consistency and reliability, have been implemented in this new technology. The OPPO planar magnetic headphone uses an FEM optimized magnet system with very high energy Neodymium magnets. A large oval planar diaphragm is positioned in an evenly distributed symmetric magnetic field. The diaphragm has a spiraling pattern of flat conductors etched on both sides of a very thin polymer film. The magnetic system and conductor patterns are optimized for maximum driving force (sensitivity) and consistency of the applied force over the radiating area. The double-sided diaphragm has 7 layers of extremely thin materials, each doing a specific job for best performance, reliability and longevity.
These advantages of OPPO’s high resolution planar magnetic technology and advanced headphone design provide for a very open, transparent, and highly dynamic sound that exhibits well-balanced tonal qualities with vanishingly low distortion, resulting in a headphone that communicates every nuance of your favorite music and ensures a high level of emotional engagement. With its classy, industrial fit and finish, the PM-1 is equally at home in an audiophile hi-fi system or on the go with a high resolution portable device.
Phase Coherence - When sound enters our ear, it has a planar wave front with all spectrum components in phase. A typical dynamic headphone driver disrupts this coherence with its phase irregularity, resulting in less than perfect signal peak reconstructions. OPPO’s planar magnetic driver has much better phase coherency since all parts of the diaphragm are vibrating in concert without break up and delayed resonance.
Purely Resistive Impedance – OPPO’s planar magnetic driver has a flat conductor pattern that does not have any inductive components. This eliminates inductance related intermodulation distortion, which is especially common in dynamic drivers with high impedance and a high number of voice coil turns.
Stability, Consistency, Reliability – Many planar magnetic headphones have large balance deviations between the left and right channels, and accurate stereo reproduction is contingent on having a very close match between the left and right channels. During the OPPO PM-1’s manufacturing process, drivers are closely matched to ensure optimum stereo imaging and soundstage.
Diaphragm – OPPO’s planar magnetic driver diaphragm has 7 layers of thin materials that provide excellent performance, reliability, and longevity. The construction of the diaphragm ensures that it is very stable under thermal stress and vibration.
Double-Sided Spiraling Coils – The diaphragm utilizes a spiraling pattern of flat aluminum conductors on either side of the driver. The double-sided design allows twice as many conductors to be placed within the magnetic field, which leads to higher sensitivity, better damping, and even drive force.
FEM-Optimised Magnet System - An FEM-optimized magnet system with very high energy Neodymium magnets is used to maximize sensitivity and consistency of the applied force over the driver area.
High Sensitivity - Many planar magnetic headphones have a sensitivity far below 100 dB and require very powerful amplifiers to drive. The OPPO PM-1 has a sensitivity of 102 dB, which allows it to pair well with both mobile devices and scale upwards when used with high end headphone amplifiers.
Build Quality – The OPPO PM-1 is ruggedly constructed with an emphasis on long term use and maximum consistency from unit to unit. The headphones have been tested to very high standards to withstand mechanical and environmental stress in order to guarantee exceptional performance throughout its lifespan.
Comfort - Many planar magnetic headphones weigh over 500 g and are often viewed as being uncomfortable. With a weight of 395 g, the OPPO PM-1 strikes a delicate balance between weight, comfort, and elegant industrial design.
Luxury Materials – The OPPO PM-1’s ear cushions are made out of the highest quality natural latex, which is superior and longer lasting to any chemically formulated foam. It is naturally hypoallergenic, retains its mechanical spring-like properties for much longer periods, and resists moisture build up from sweating. The headband and earpads are made of hand selected lambskin that provides a luxurious look and feel.
Easily Replaceable Components – The OPPO PM-1’s earpads are mounted on rubber inserts and can be easily cleaned or replaced. This design also makes switching between the leather and velour earpads nearly effortless. The headphone cable is detachable and uses non-proprietary, 2.5 mm mono mini jacks to connect to the earcups, making it easy to switch between the longer, 6.35 mm terminated cable for home use, and a shorter, 3.5 mm terminated cable for portable use.
Premium Accessories – The 6.35 mm terminated headphone cable features Ohno Continuous Casting (OCC) construction wrapped in a black fabric sleeve. The selvedge denim carrying case transports and protects the headphones in style, and the alternative set of velour pads provides a slightly different sound signature.
|Acoustic Principle||Open back|
|Nominal Impedance||32 Ohm|
|Sensitivity||102 dB in 1 mW|
|Clamping Pressure||5 N|
|Cables||3 m detachable OCC cable (6.35 mm)
1 m detachable OFC cable (3.5 mm)
|Cable Connectors||Output: 2.5 mm mono mini jacks
Input: 6.35 mm stereo jack, 3.5 mm stereo jack
|Weight||395 g (without cable)|
|Included Accessories||Wooden Box
6.35 mm and 3.5 mm cables
Alternative set of velour ear pads
|Driver Type||Planar Magnetic|
|Driver Size (Oval)||85 x 69 mm|
|Magnet System||Symmetric push-pull neodymium|
|10 - 50,000 Hz|
Max Input Power
|500 mW according to IEC 60268-7|
|Pulse Max Input Power||2 W|
In conjunction with Hitachi Capital we have sourced a range of finance plans to suit everyone. This can be offered for purchases over £200.00.
Buy Now Pay Later
Buy Now Pay Later is available on the majority of products we sell. No interest is payable as long as the full balance of the agreement has been cleared before the end of the 12 month period. You can elect to pay a deposit or not and you can control the payments on this agreement. You can settle the agreement early without any penalty and one payment can be left until the just before the end of agreement. You can also make regular payments by contacting Hitachi Capital.
Please note that monthly payments will commence 12 months from the date your agreement starts and will be payable of the same day of each subsequent month at an APR of 29.8% with interest calculated over 48 months on the original amount. If you settle any outstanding balance before the first repayment is due along with the administration fee of £29.00 then all interest charges are waived.
Although you will be contacted by Hitachi Capital as it reaches the end of the interest free period we highly recommend the client also diarises this separately due to the high APR if the balance is not fully cleared.
18 month Interest Free Finance
A new 18 month % free finance is also available on SELECTED products. Payments are balanced over the 18 month period with no interest on financed amount. You can elect to pay a deposit or not. No settlement fees are applied.
Interest Bearing Credit
Interest bearing finance is available over 24, 36 or 48 months at an APR of 19.9%. You can elect to pay a deposit or not. No settlement fees are applied. We can provide the monthly payment figures once the purchase(s) have been finalised.
All the applications can be completed by the customer and a link will be emailed to the application page. If preferred we can take the details over the phone and can normally confirm acceptance of your application status during the call. There are different consumer laws depending on whether the agreement is for an in-store purchase or distance selling.
Release of goods
Due to the statutory cooling off period for consumers please note that goods cannot be released for 14 days after the date the agreement was signed by the customer if details are taken over the phone. For those completing forms at our store goods purchased can be released immediately. We recommend contacting us before arranging a visit to Kent Home Cinema to ensure we have stock of the item as some of these are specifically ordered in for clients. The agreement can be pre-authorised before travelling to us to prevent a wasted trip. Please note that installation fees cannot be added to finance agreements – only the hardware.
All agreements are subject to status and in the event they are declined we are not given any reasons by the lender. We can provide contact details should the customer wish to appeal their decision.
Please call 01892 552563 for further details.
Kent Home Cinema Centre Ltd licensed credit brokers
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