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SANSUI sansui sansui AU-D907X black integrated amplifier integrated amplifier

SANSUI sansui sansui AU-D907X black integrated amplifier integrated amplifier
  • SANSUI sansui sansui AU-D907X black integrated amplifier integrated amplifier
  • SANSUI sansui sansui AU-D907X black integrated amplifier integrated amplifier
  • SANSUI sansui sansui AU-D907X black integrated amplifier integrated amplifier
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$ 549.09 (¥ 61,800)
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Product Information


Manufacturers SANSUI sansui sansui
Product name AU-D907X black integrated amplifier integrated amplifier
Brand new price
Items ranked Rank A pre-owned
Reference 1 Your environment is in place, now is available.
Reference 2 Shipping is free * some excluded regions

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SANSUI AU-D907X \189, 000 (released in 1984)

Employing X-amp integrated amplifier.
AU-D907X uses X-amp amp basic configuration.
X balanced amplifier composed of 6 techniques differential balanced input configuration, balance output configuration, balance feedback configuration, power balance, balance current drive configuration, twin diamond balanced differential circuit, in everything from input to output, power supply, and feedback to the balance amplifier transmission and amplification systems from the Earth entirely separate has.

Outputs differential push-pull amplifier with Darlington outputs two pairs of balanced configuration.
Balanced output stage with two amplifiers speakers + and-in from the side to drive on an equal footing, and eliminate the quality degradation caused by the Earth becomes a problem in single-drive systems, strain of the circuit itself is suppressed to a very small. Strain put the NFB two balanced output stage amplifier balance feedback configuration, operation and characteristics are greatly improved.

Adopt a differential balanced input in the input stage. This input differential stage CMRR (common mode rejection ratio) 90 dB, differential input, and tormented 1 / 30,000 affected only from the Earth a clean can be entered.

Adopt a twin diamond balanced differential circuits utilizing diamond differential circuits in the pre-drive stage.
This circuit is based on diamond differential circuit originally having four output, able to use the output of the four, two pairs of output stage amplifier to balance push-pull drive to.

Earth and extraneous signal transmission current transmission would need to realize the ノンアース amplifier. Twin diamond balanced differential circuit using voltage-current conversion, and achieve balanced current transmission.

Power supply employs balance power configuration.
No pirating unbalanced current and ripple current to the speakers without a Center tap completely separate Earth in the balance power and conventional power is requisite, thing.
For the power of configuration is a complete closed-loop, back-EMF from the supply current to the amplifier and speakers and the signal is irrelevant and the IHM strain harmful to the sound quality does not occur. No noise component contained in the household power supply (100 V) was cancelled for balanced power configuration, contamination by amp.
To the power of high performance toroidal transformer and 50 mm × 110 mm pure focus capacitors and α-capacitor four recruitment, total 160,000 millijoules electrostatic energy enough current energy supply during peak possible by has.

CD direct terminals, input selector, bypassing the transmission.

To the phono input Equalizer direct Hi-MC position, MC transformer (High and Low switching) is arranged with the MM position.
MC transformer excellent magnetic characteristics of magnetic INC., Inc. (USA)-super has been manufacturerd by using Mono type with two super-linear step type.

Adopted DC amplifier configuration Hi-Precision Equalizer the equalizer amplifier, 20 Hz-300 kHz wideband, ± 0.2 dB of gain. With diamond differential circuit this circuit better fast responsiveness.

Major small Electrolytic Capacitor with high performance AWD type, small-capacity film capacitors used copper foil polystyrene capacitors. Use RM resistance excellent sound quality.

Heavy weight luxury アルミブロックヒート sink serving as excellent heat radiation effect and power transistors in the oscillation modulation distortion prevention adopted.

Using copper メッキシャーシ to prevent electromagnetic distortion.

Decorated mirror finish to the wood.

Rated power (electrical equipment law enforcement Act) 370 W
466 External dimensions width x height 161 x 431 mm depth
Weight 20.5 kg

★ WEB reference ★

[Product status / activity]
I think there are some small scratches by stress not available level.

Response: OK button
Input-output response: OK
Gali: at worrisome levels Gari is not out in the current situation, but only a gully and please forgive me if you're in the level does not recognize.

Had no other places especially in use seems to be a problem.

★ years per 代モノ product longer than this to for all the things do your beans, we recommend cleaning and maintenance.

[Maintenance & cleaning,]
We conducted a simple cleaning of the body.

Body only

* Standard delivery is unknown, but original are confirmed missing box, instruction manual and audio cables.
* Warranty are consumable items, please note that on purchase.
* Please check before you buy any other pictures please.

Shipping & payment

We will send in had 140 size.
Payment is credit, bank transfers, and Yu post direct debit, cash on delivery, it is possible.
Not when placing an order, payment and shipping choices wrong, please.
Note the guaranteed shipping freight for that please.
This product will be shipped from the drug life Museum Amagasaki, takeyuki freezer-warehouse (Amagasaki, Hyogo Prefecture) .
Please if the arrival date specified in 4 working days later.
For more information please see company overview page.

-- - - - - - Free shipping * some areas except - - - - - --

Send us the Sagawa Express, or will be shipped by registered airmail.
Is shipping free in the cod please pay cash on delivery fees.
Not when placing an order, payment and shipping choices wrong, please.

* Free shipping on area of Honshu, Shikoku, and Kyushu main island.
* Customers such as Okinawa and Hokkaido and Islands would be ineligible for free shipping because shipping is usually charges. Please kindly.

Rank description
* Our judgment, personal depending on variances in how to feel.
[Brand new unopened] not OSEK products purchased after opening
[New products] use is not the receipt of goods
[Unread items] unread state of the used products without boxes, etc. ( brand new you are looking please purchase. )
[Rank S] brand new as well as Super mint condition (unused, but almost no scratches, such as products)
Rank A beauty products, some on ( are some small scratches, but overall clean item )
[Rank B] normal thrift ( scratches from normal use, dirt, such as products )
[Rank C] degree under the thrift ( in scratches, product is seen pretty large scratches, stains )
[Rank J] parts, junk (behavior, non-functional items)
* Note

* Do study in the internal inquiry field than your desired amount after discount negotiation.
Please note that may get time to slightly change, including full time.
If the amount to be discounted folded email contact you shortly.
After your purchase amount change.
After purchasing discount negotiation and purchase please note that after the cancellation is not possible.
* Operates specialty stores, and thrift shop purchase shop.
Re distribution, you have to purchase from your goods are exhibited.
* The rank table in guideline please consider.
* Look at pictures of items when you purchase decision or questions be sure please contact us.
* Image differences, State recognition, etc., by please return / cancellation.
(Please make sure your inquiry)
* Please note that a slightly used goods if the condition to mention thread or small scratches, etc..
* Please refrain from wishing to brand new complete re distribution products is not just brand new and second-hand products, so your purchase.
* Brand new unopened products may even deteriorating foreign matter, products for several decades.
* Regarding the transaction essentially no claim no return please.
Field * goods in issue one week within initial poor response will be.
For more information please see company overview.
* Cancellations arrive after 30% of the purchase price and cancellation charges please.
* Shipping charges in case of cancellation the goods will be borne by customers.
* Shipping, transfer fee and delivery fee will be paid by the customer beforehand please.
* Shipping within 7 days please. Please note that long term storage is not so.
* Manufacturer's warranty will start from our customers who sell goods purchased on.
Please note that may not with the manufacturers warranty brand new unopened case.
( customers who sell certificate of guarantee is lost, or warranty if the blank )
* From how much home goods home delivery notes
-Lifting work, crane work item or room in the disassembly and Assembly is required we will cause charges (spot quote).
Please note that additional charges of returned goods and cancellation will not be accepted.

Please note that cannot accept the below product returns and exchanges, warranty, etc.
1 ) failure due to natural disasters, damage and defects
2 ) fault in your error, damage, defect
3 ) products do your own remodeling after failure, damage, defect
4 ), such as damage due to the failure of the goods or other ( damage )
5 ) If past the initial poor response time
6 ) due to incompatible equipment purchased (goods) and other equipment
7 ) batteries or other does not guarantee on consumables


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