Astell & Kern SEM2 Interchangeable All-in-One Module for the SE180

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Astell & Kern SEM2 Interchangeable All-in-One Module for the SE180
Product ID #: SEM2MS
AUTHORIZED DEALER
Product Information
Product Information
About Us
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Product Information
*For Sale In US Only*
Shape Your Sound With SEM2
SEM2 is an Interchangeable All-in-One module for the SE180. Shape your Sound with the Asahi Kasei AK4497EQ Dual DAC SEM2 module. The SEM2 module allows you to give your SE180 a different sound than the bundled module. The SEM2 supports up to 32bit/768kHz bit-to-bit playback and Native DSD512.
Next-Generation Advanced AMP Technology
Next-generation AMP technology is also applied in the SEM2 all-in-one module. From the selection of OP-AMP parts to circuit design board layout and tuning everything has been completely redesigned to produce the best sound.
Even with a high output the signal-to-noise (SNR) one of the important measurements of audio performance boasts an amazing 127dB (based on AK4497EQ Dual Balanced High Gain).
Circuit Separation Structure of Main Body and Module
By physically separating the main body from the All-in-One module it completely blocks power and RF noise that may occur from the main body.  This creates an independent structure that prevents noise from interfering with music playback.
Balanced and unbalanced signals are separated for each channel to provide the best possible sound through independent circuit design without interference.
Astell&Kern Audio Technology Forms the  TERATON ALPHA Sound Solution
TERATON ALPHA is AK's ultimate Sound Solution to produce audio playback that is close to the original sound through the audio output interface by use of effective power noise removal efficient power management and amplification with minimal distortion. TERATON ALPHA features Astell&Kern's patented technologies which are the result of tens of thousands of hours of continuous research and development to produce sound close to the original sound the artist and producer intended.
Specifications
General Specifications
Product Name: SEM2
Mode: PAP12
Body Material: Aluminum Stainless Steel Polycarbonate
Body Color: Moon Silver
Sample Rate:
PCM: 8kHz ~ 768kHz (8/16/24/32bits per Sample)
DSD Native: DSD64 (1bit 2.8MHz) Stereo / DSD128 (1bit 5.6MHz) Stereo / DSD256 (1bit 11.2MHz) Stereo
Output: Unbalanced Out (3.5mm) Balanced Out (2.5mm only 4-pole supported / 4.4mm only 5-pole supported)
Output Level:
[Normal Gain] Unbalanced 2Vrms / Balanced 4Vrms (Condition No Load)
[High Gain] Unbalanced 3Vrms / Balanced 6Vrms (Condition No Load)
DAC: AKM AK4497EQ x2 (Dual DAC)
Decoding: Support up to 32bit / 786kHz Bit-to-Bit playback
Dimensions (W x H x D): 3.03" x 2.99" x 0.78"
Weight: 3.53 oz
Operating Temperature: 32°F ~ 104°F
Playback Time: about 10.5 hours (FLAC 16bit 44.1kHz Vol.50 LCD Off)
Audio Performance
Frequency Response:
±0.07dB (Condition: 20Hz ~ 20kHz) Unbalanced / ±0.06dB (Condition: 20kHz ~ 20kHz) Balanced
±0.68dB (Condition: 20Hz ~ 70kHz) Unbalanced / ±0.67dB (Condition: 20kHz ~ 70kHz) Balanced
Signal to Noise Ratio:
[Normal Gain] 122dB @ 1kHz Unbalanced / 124dB @ 1kHz Balanced
[High Gain] 125dB @ 1kHz Unbalanced / 127dB @ 1kHz Balanced
Crosstalk:
[Normal Gain] -138dB @ 1kHz Unbalanced / -145dB @1kHz Balanced
[High Gain] -138dB @ 1kHz Unbalanced / -147dB @ 1kHz Balanced
THD+N:
[Normal Gain] 0.0006% @ 1kHz Unbalanced / 0.0005% @ 1kHz Balanced
[High Gain] 0.0008% @ 1kHz Unbalanced / 0.0006% @ 1kHz Balanced
IMD SMPTE: 0.0002% 800Hz 10kHz (4:1) Unbalanced / 0.0002% 800Hz 10kHz (4:1) Balanced
Output Impedance: 3.5mm (1ohm) / 2.5mm (1.5ohm) / 4.4mm (1.5ohm)
About Us
About Us
World Wide Stereo:
Awe Inspired. Since 1979.
For four decades, World Wide Stereo has delivered the world's finest consumer electronics and home entertainment products.
With two award winning stores, a brand new distribution center and one of the largest design and installation of Audio/Video departments in the country, we know what's good and what's not. We are very selective about what we sell, and we are an
Authorized Reseller
for every brand we represent. You can shop with confidence and know that you're buying
top-quality, new merchandise with a valid manufacturer's warranty
and
best in-class support.
As a family-owned business, we live by our reputation for integrity, quality, personal service, and competitive pricing, striving to provide you with a superior experience.
World Wide Stereo is proud to be named the Best of Philly for Electronics Stores by Philadelphia Magazine. World Wide Stereo has also received an Excellent Rating from STELLAService and top marks from the Better Business Bureau.
Payment
Payment
Payment is required in full immediately upon selecting "Buy It Now" on any item. Orders where payment is not received within 24 hours can be cancelled for non-payment and the items may be relisted for sale by World Wide Stereo.
eBay accepts payment via Credit card or PayPal for all purchases through our eBay store. We can only ship to the confirmed US billing address/Paypal address on your payment.
Returns
Returns
As an authorized dealer, we are proud to offer manufacturer's warranties with your purchase. Please contact us for a free copy of the manufacturer's warranty.
60-Day Money-Back Guarantee:
The quality of our products and your happiness is guaranteed. If you are not completely satisfied with your purchase for any reason, you may return or exchange eligible items* in their original condition and packaging within 60 days of receipt of your shipment (less applicable shipping and handling costs). Start your return by sending us an ebay message or calling us at 1.866.961.7781 for your RMA# (Return Merchandise Authorization Number).
A partial refund may be given or the return may be refused in the event merchandise is not returned in its original condition or without manufacturer packaging.
Freight & Oversize items:
Items fulfilled via free scheduled delivery/specialty motor freight that require special shipping are subject to return fees.
What if my product arrives damaged?
Please call us right away at 1.866.961.7781. Shipping damage must be reported within 2 business days of delivery to ensure a replacement or refund can be issued.
What if my product is defective?
Eligible products that are deemed to be defective during our 60 day guarantee may be exchanged for a new, working unit. Certain products, like larger TVs, will require the manufacturer to schedule a service call or appointment with you in order to arrange service. We are happy to help you obtain warranty service through the manufacturer after the 60 day return period has expired.
Return Fees:
Freight & Oversize Return Fee:
Items originally shipped via free scheduled delivery/specialty motor freight require special shipping and will incur return fees (starting at 0). Oversize items include but are not limited to TVs over 55", select subwoofers and floorstanding speakers, furniture, and most items over 75 pounds. Returns for an exchange will also incur return fees.
Restocking Fee:
A partial refund may be given or the return may be refused in the event merchandise is not returned in its original condition or packaging, was previously installed, is missing parts, cables cut or terminated, has a missing or different serial number from the one shipped, or is damaged during return shipment due to improper packing.
Refused Shipments:
Packages refused for any reason other than shipping damages will be subject to return fees.
Shipping
Shipping
We offer FREE standard shipping on all orders within the continental US. Additional charges will be added when expedited delivery is selected. Please verify your shipping address prior to checkout as we are unable to make any changes once checkout is complete.
Most orders are processed by our warehouse within 1-2 business days. In-stock items are estimated to usually arrive within 3-9 business days (depending on the carrier and excluding holidays). Please keep in mind that adverse weather conditions, remote delivery locations and carrier delay could cause your actual delivery time to be slightly longer. Our warehouses, shipping carriers and customer contact center are closed on major holidays. Most packages will require an adult signature for delivery. You will receive an email confirmation of your order within 24 hours of placing your order and an additional email confirmation with tracking information once your order has been shipped. *Excludes Alaska, Hawaii, and International Addresses.
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