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
Product Information
Product Information
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Product Information
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.
Specializing in the retail, design, and installation of the finest home and mobile audio, video and automation products in the world. For over three decades, World Wide Stereo has been one of the nation's leading providers of emerging technologies, both cutting edge and practical in the consumer electronics arena. With a reputation for integrity and quality, World Wide Stereo has survived the test of time by offering personal service, award winning installations, and competitive pricing.
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 winning an auction or selecting "Buy It Now" on an 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 Outlet.
PayPal is our exclusive payment option for all purchases through our eBay store. We can only ship to the confirmed US Paypal Address on your payment. In accordance with applicable state and local laws, we are required to charge sales tax in localities where World Wide Stereo has operations. World Wide Stereo does not benefit from the collection of sales tax and we remit all taxes collected directly to the appropriate taxing jurisdiction.
Returns
Returns
As an authorized dealer, we are proud to offer manufacturer's warranties with your purchase.
The quality of our products is guaranteed. If you are not completely satisfied with your purchase, you may return eligible items*. Returned items must be in their original condition and packaging within 30 days of receipt of your shipment (less applicable shipping and handling costs). In the event where merchandise is not in its original condition or missing packaging, manuals, accessories, or other components a partial refund will be given. Partial refunds are calculated on a case-by-case basis. Buyer pays return shipping on all elective buyer's remorse returns. No returns are accepted after 30 days of delivery.
Eligible items include all items sold by the World Wide Stereo with the exception of:
Televisions larger than 40" in size
Furniture, and oversized product shipped via a motor freight carrier
Car audio equipment that has been installed or where wires have been cut
In-ear headphones
Shipping
Shipping
We can only ship to the confirmed US Paypal Address on your Paypal account. Please confirm your shipping address prior to completing your payment. We offer free ground shipping within the continental US. We do not offer shipping to PO Boxes, AK, HI, APO/FPO, or outside of the US.Most items are shipped within 1 business day of payment (with exception of weekends and holidays) via Fedex. Oversize items ship via motor freight carrier and are indicated in the listing. Freight delivery is by scheduled appointment, normally within 7-10 business days. Please confirm your phone number in your Paypal account prior to completing your payment so we can schedule your appointment.Some shipments may require signature confirmation at delivery. Once your order has shipped it cannot be cancelled or changed.In the event that you refuse your package for any reason other than shipping damages, you will be charged a restocking fee and the full round trip shipping cost. This includes packages that are returned to sender due to non-deliverable addresses.
TVs over 40” are eligible for local pickup only and cannot be shipped. For local pickups, our outlet store is open Monday-Friday 9:00 AM - 4:00 PM ET. For more information, please feel free to contact us at 866.961.7781.
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