Black Housing Unit is assembled and calibrated.
PCBA Only is not assembled/calibrated.
Assembly Kit includes:
1) Cosmos APU PCBA not calibrated
/marketing target: Cosmos Analog Processing Unit a single-channel device
top performance THD+N and Noise/DR measurement tool for Cosmos ADC
Materials: Sandblasted/black anodized aluminum/laser mark/THAT1510/OPA1612/RT6863S
Viking resistors, Murata, TDK, ELNA caps, Taiwanese connectors and switches
Dimensions: PCBA 90x50x29mm
Weight: PCBA 34g
Assembled unit 157g
Power: USB-C +5V rail, 350mA idle current, isolated power is recommended
(charger, power-bank >600mA)
Inputs: 3.5mm jacks TRRS pinout as +In/-In/GND/GND respectively
Notch: balanced (FDA) up to 10Vrms(active clamp to 15Vpeak)
gain = 20db + 0/6db(switchable), Zi=20/10kohm bal/unbal
the Notch ratio = -30db at 1kHz or 10kHz(switchable)
Residual Noise 950nVrms(A) typical(gain 20+6db, Fnotch=1kHz)
Residual distortions: @1kHz@4.5Vrms 2nd/3rd <-150db/-150db
@1kHz@9Vrms 2nd/3rd <-150db/-160db
@10kHz@4.5Vrms 2nd/3rd <-130db/-130db
Residual THD+N BW20-20k@1kHz@9Vrms <-131db unweighted
(practically achieved with DAC+LPF sourse)
@1kHz@4.5Vrms <-127db unweighted(practically achieved with DAC+LPF sourse)
Preamp: balanced (FDA) up to 3.5Vrms(10oHm to TVS clamped!), gain = 34/60db
Zi=47/23.5k bal/unbal, 100pF input capacitance i.e. able to use as a phono-preamp
with no RIAA correction, which would be accuratelly applied in a digital domain
Residual Noise <130nVrms(A) typical at +60db gain or <260nVrms(A) at +34db gain
The practically achieved Dynamic Range AES17 in the cascaded Preamp->Notch
@1kHz -60dbfs(10mVrms) >153db(A), @1kHz -60dbfs(5mVrms) >150db(A)
Preamp inputs, just in case, have internal low-noise phantom power 48VDC+/-4V
2x6.8kOhm for use with condenser mics(Neumann, AKG, Rode, and so on).
The phantom power increasing the noise of the Preamp for 12nVrms(A) i.e. 130+12nV
Do not turn On that power without a mic connected, that may damage the device tied to the APU's preamp input! Please wait for at least 10s after the phantom power is Off, to safely plug/unplug anything to the Preamp input.
Outputs: 3.5mm jacks TRRS pinout as +Out/GND/GND/GND respectively
unbalanced up to 10Vrms, Zo = 47ohm
Frequency response: Notch: 5Hz-200+kHz Fnotch=1k
0db referred to 50Hz 1kHz -30db, 2kHz -0.5..-0.6db, 3kHz -0.2db
Preamp: 10Hz-1MHz+ -3db@60db gain, 10Hz-5MHz+ -3db@34db gain
The calibration file for Cosmos APU 1kHz Notch for REW
a) to do the measurement of your DAC/AMP distortions@1kHz/10kHz at <-150/-130db harmonics level, or THD+N@1kHz down to -132db. In that case, you need the Notch part of Cosmos APU.
b) measuring your DAC/AMP DR/SNR with the residual APU's noise 130nVrms(A) with the Preamp of Cosmos APU.
c) to rip vinyl records with the Preamp of Cosmos APU + Cosmos ADC with built-in DSP RIAA EQing. Please, check Cosmos ADC page to find the CosmosAdc_v13_RIAA.hex.
d) to use a Pro condenser mic with 48V phantom power with the Preamp of Cosmos APU.
Remember that the input voltage for the APU's Preamp should be <=3.5Vrms, and <=10Vrms for Notch. Overvoltage of inputs may damage the unit, as a result, usually, input 0603 10ohm resistors will be burned.
Often the 2nd harmonic(H2) APU performance strongly depends on the symmetry of your particular bench/setup, hence, it is a good idea to use a power-bank, USB ISO, or battery-powered laptop for the ADC after APU. Often, a symmetry-related issue would be noticed if H2 levels are different after changing the input polarity.
To avoid accidentally turning On the phantom-power and further damaging the DUT tied to the Preamp input, we placed the blocking red plastic bar into the 48V power switch. Please, take it out before working with a condenser mic. Never turn On the 48V power without a mic but if you did that, please do not insert the plug into the 3.5mm input jack at least 10s after 48V power is Off, or also, you can see the orange LED(48V auxiliary indication)D light inside of the jack, please wait for the light dimming down.
QUESTIONS & ANSWERS
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The final shipping cost and estimated delivery timeframe will be available to you during checkout. Currently, we offer 3 International shipping methods which are steady and easy to track. Priority worldwide shipping, Premium ( Partial countries) and a faster Express shipping. The estimated times stated below are not guaranteed. An international package could experience delays like postal strikes or severe weather or Cov-19 situation. All shipping ways, PO Box address is not acceptable.
If you don’t receive your order within the estimated time frame provided below and suspect that it might be lost in transit, please contact HiFiGo Support ( firstname.lastname@example.org ) and we can look into the order with the courier. Lost-in-transit requests must be submitted to HiFiGo Support within 3 months of the date of shipping or before the courier archives the tracking information.
Option 1. Express by DHL/UPS/Fedex/Aramax/SF etc ( there may be tax need to pay in this way)
!!! Express Free Shiping on US$500+
The estimated time of delivery is usually 3-7 Days depending on the country. Includes detailed tracking and confirmation of delivery.
1.Kindly remind that we will deduct you the round freight before refund you if customer reject to pay the duty tax. (P.S. tripple freight for returning the product)
2.For some remote areas, there may be an additional charge of US$ 35. Your order shipping date may be delayed few days if the place is remote because we need find out proper carrier to send out to avoid remote fee, otherwise we will contact you for remote fee or order could be cancelled. If you are unsure whether your location is considered a remote area, we recommend contacting us to confirm.
3. Address characters should be within 30-40 letters.
Option 2. Premium ( 6-10days, All tax and Duty Paid)
All tax and duty are prepaid to carrier by HiFiGo before shipping, so you dont need to pay any tax or duty when you get it.
Note: Address characters should be within 30-40 letters.
Premium Available: France, Germany, United Kingdom, Italy, Spain, United States.
United Kingdom: https://t.17track.net/en#nums=YT2134221222009882
Option 3. Priority shippingIf we marked it is with all tax and duty paid, all tax and duty are prepaid to carrier by HiFiGo before shipping, so you dont need to pay any tax or duty when you get it.
Note: Address characters should be within 30-40 letters.
America (with all tax & duty paid, Free shipping on $100+ )
United States/: 1-2 Weeks, average 10 days
Europe ( with all tax & duty paid, Free shipping on $300+ )
1. France, Germany, United Kingdom, Italy, Spain : 1-2 weeks , avg. 10days.
United Kingdom: https://t.17track.net/en#nums=YT2134121272173175
2. Austria, Netherlands, Hungary, Portugal, Poland, Belgium, Czechia, Denmark, Greece, Ireland, Luxembourg, Slovakia, Sweden, Bulgaria, Finland, Slovenia,Latvia, Malta, Norway : 1-3 weeks, avg.2 weeks .
3. Croatia, Estonia, Bulgaria,Romania, Lithuania : 2-4 weeks,avg.3 weeks
4. Russia: 4-10 weeks
Switzerland: 1-2 weeks
Ukraine/Belarus: 3-5weeks,avg. 4weeks
Asia (with all tax & duty paid , Free shipping on $100+ )
Australia (with all tax & duty paid, Free shipping on $100+ )
Registered Airmail service
We have stopped the normal registered airmail service due to the extremely long delivery times which made us unable to guarantee the delivery of your order before a certain date. Due to these circumstances and lack of tracking information. We've decided to not offer this shipping option. We appreciate your understanding.
If you chose Express (DHL/UPS/Fedex etc) : You are responsible for paying taxes and duties. But we usually declare an item at a lower value , leave us a message with the desired value if you want.
If you chose Priority service marked with tax and duty paid: All tax and duty paid by Hifigo.
You can Track Your Order by clicking here.
Please note: It can take up to 24 business hours for your tracking number to become active. In some cases, It may take up to 3 business days to update.
Shopify supports only one currency that is US Dollars. On payment, it gets automatically transferred to US dollars. Due to the currency exchange rates fluctuating almost daily, the prices in other currencies on our store at HiFiGo is just for your reference. Final price might be a little bit higher or lower depending on the current dollar rate.
After you place your order, you will receive an email with your order confirmation.
After your order processes, you will receive another email with tracking information and you will soon be able to track your order.
1.All orders ship from our warehouse in China within 1-3 business days unless stated otherwise. Please allow 1-3 days of processing time. Some items may require a longer ship-out and/or delivery timeframe. We will notify you immediately about the expected delivery timeframe, with the option of canceling your order for a full refund.
2.We will ship the product with the correct power voltage selection and adapter according to your country in shipping address. If your requirement is different with your country standard, please email us.
Packaging samples for different sized items. All products that we have on our store are 100% genuine and comes with their original retail packaging from the brands. Please note that the package might get opened for checking at customs in your country to inspect the cargo. Due to this single reason, we can’t guarantee you get your shipment 100% sealed when you get it.
Why hasn't my order shipped yet?
Typically, it takes about 1-3 Business Days of processing time before we ship your order. We ask that you allow us 1-3 Business Days to process your order!
You will receive an email to confirm that your order has been shipped. So please check your inbox in 1-3 Business Days.
I've been looking to buy a music player Hiby R6 ( US$799) and I wanted to know how much it would cost shipping to My country Romania / Spain/ Germany/ Norway/ Japan /Austrialia etc ?
There are two shipping ways to your country:
1.Express shipping(DHL/UPS etc) with 3-5days arrive( $500 order free shipping), we could undervalue the shipping invoice for you in order that you could pay less tax or duty.
2. Priority shipping to EU/ US / CA/JP /AU / South Africa with all tax and duty paid. 1-3weeks. ( $ 100 order free shipping ). We suggest to chose this shipping way, it is steady, good tracking information and you dont need to pay any tax & duty.
I've received a tracking number for my order. Why is my tracking not working?
Although your order can "ship", sometimes the online tracking will not update until 24 hours later. Usually, expect to see updated tracking information on the next business day after you receive your confirmation email/SMS. We appreciate your patience.
How can I track my order?
- Simply click on this link here to be redirected to the order tracking page.
- Enter the tracking number found on your order confirmation email.
- You will see up-to-date shipping information about the status of your order.
If You Have Any Questions Or Concerns, Please Contact Us so that we can help you.
If the package shipped, can I reject to receive it?
First, kindly contact your local courier using the local tracking number.
If your parcel were to be in transit for at least 3 months, it may have been lost in transit.
For orders below $50USD, you may either opt for a one-time reshipment of parcel OR a full refund of the amount paid in cash via PayPal/Credit/Debit card.
For orders above $50USD, we will only process a 50% refund of your order paid in cash via PayPal/Credit/Debit card.
Customers are to bear the consequences and fees incurred, if the parcel was undelivered due to any of the following situation:
Wrong address or phone number provided by recipient
Recipient was uncontactable when courier company contacted
Refusal to sign for the package by recipient
Lost or damaged parcel because recipient opted for “no-signature delivery”
Refusal to pay for the local tax/processing fee by recipient
Refusal to provide supporting documents for custom clearance by recipient
7-Day DOA Product Guarantee
You will enjoy this guarantee if you receive a damaged, wrong or unusable item. Please contact us within 7 days of receiving the package for a return authorization.
Once the product has been returned to our designated address, we can ship you a new item for free (we will refund the shipping cost of your return), or you can opt for a full refund.
30-Days No Condition Returns
If you are not satisfied with your purchase and the product is still in brand-new condition, we can arrange a partial refund which will include the item price minus shipping costs. You will be responsible for paying the shipping costs and customs duty for returning your item.
If it is plastic sealed when you get it, it should remain plastic sealed. Some types of goods such as CIEMs and custom cables cannot be returned.
Please contact us within 30 days of receiving your order for a return authorization. (confirmed by shipping tracking history)
Return requests made within 7 to 30 days of the order being marked as delivered will be subjected to a 20% restocking fee.
Items such as earplugs/holsters/cables are not covered by this guarantee due to hygiene reasons.
We may refund you for the following reasons,
- Returned items due to the policy of returns once we get them.
- Order cancellation
- Other reasons.
If you paid by credit card, It will arrive to you within 7 working days usually. The time will depend on the bank handling time. If you pay by PayPal, It will arrive to you within a few hours. If you didn't get the refund during the above lead times, write us to check the reason.
The refunded amount may be slightly different from your original national currency payment due to Currency Exchange rates varying, HiFiGo is not responsible for the difference.
There may be a transaction fee deducted by your bank when the order is canceled or refunded fully or partially, HiFiGo is not responsible for this if your bank charges you any additional fee.
We only replace items if they are defective or damaged.
If the item is marked as a gift when purchased and shipped directly to you, it cannot be exchanged, refunded, or warranty.
How long is the warranty period?
HiFiGo warrants to the original purchaser that the Product(s) shall be free of any defect in material or workmanship for a period of one year for labor and one year for parts from the date of the original order except the items listed below:
Desktop DAC/AMPs IEMs and Dongles: 1 years warranty
Cables and Adapters: 3 months warranty
(excluding carrying cases, ear tips, and other accessories)
Should the Product(s) supplied by HiFiGo prove defective because of improper workmanship or material as reasonably determined by us, HiFiGo agrees, at its option, to either repair or replace the Product free of charge, excluding any shipping or handling charges.
This warranty extends only to personal use & does not extend to any product that has been used for commercial use, rental use, or use that is not intended. There are no warranties other than expressly set forth herein.
THE WARRANTY DOES NOT APPLY TO THE FOLLOWING
- Damage due to user negligence, accidents, disassembly, waterlog, misuse, abuse, alterations or vandalism.
- Improper or inadequate maintenance.
- Failure to perform required preventive maintenance
- use not following the ‘User Guide’ or any additional safety, use, or warnings included in the product materials.
- Unauthorized modification or commercial use.
- Damage in return transit.
- Unsupervised use by children under 18 years of age.
- Accidents, abuse, misuse, improper installation, problems with electrical power, acts of third parties.
- Products that are altered or repaired by anyone not authorized by HiFiGo
- usage not following instructions accompanying the Product(s)
- failure to perform required preventive maintenance,
- weather conditions, lightning, fire, water, or any acts of nature
- Furthermore, HiFiGo is not liable for incidental or consequential damages of any nature resulting from the use of this product and any liability shall not exceed the purchase price of the product.
Disclaimer of Warranties - Except as set forth herein, HiFiGo disclaims any and all warranties and representations other than those explicitly specified in this contract; any warranties, if separately provided in writing, are extended only to the Buyer whose name is shown on this invoice/contract. Warranties do not cover product damaged by external causes, including accident, abuse, misuse, improper installation, problems with electrical power, acts of third parties, Products that are altered or repaired by anyone not authorized by HiFiGo, usage not following instructions accompanying the Product(s), or failure to perform required preventive maintenance, including but not limited to backups, problems caused by use of software, parts and components not supplied by HiFiGo, weather conditions, lightning, fire, water, or any acts of nature; HiFiGo shall not be obligated to provide any warranty service or obligations unless the customer has paid its invoices in full under this or any other HiFiGo invoice. HiFiGo shall have the sole discretion in determining whether the Product is covered under the warranty for labor and/or warranty for parts
Governing Law - This contract shall be governed and construed per the laws of the People's Republic of China. Buyer agrees that competent courts in the People's Republic of China shall have exclusive jurisdiction over any legal action concerning this contract. In the event of any dispute related to this contract, the prevailing party shall be entitled to reasonable attorney's fee and costs.
How can I Request a Warranty replacement or repair?
You must email our customer service email@example.com within the applicable warranty period with your order number and your specific inquiries. Please describe the problems that you encountered with as much detail as you can.
Can I cancel an order?
Once an order is placed, you have less than 24 hours to cancel it if it is not processed yet. Once the order processes and is accepted by our warehouse, you may still request cancellation, however, please know that cancellation at that stage is not guaranteed.
Can I return the products that I don’t like and get a refund?
You may request to return an item in the condition it was received if you change your mind. Some items may be returned for either money back or exchange subject to the following conditions. Our policy is within 7 days after receiving according to the tracking record. If 7 days after receiving have gone, unfortunately, we can’t offer you a refund or exchange.
- Any item returned must be complete with all accessories, hardware, manuals, or instructions, and in the same "new" condition as when it was when shipped to you. Please send us photos or videos of it.
- Any item returned incomplete or with physical damage such as scratches etc., excessive signs of use, or abuse will not be accepted for return.
- Any item returned will be evaluated upon receipt. Of course, we cannot give refunds on defective merchandise resulting from mishandling, misuse, tampering or improper use.
Can I exchange a product that I ordered?
We offer an exchange service if the items are in the following conditions. (*Except Non-refundable & Non-exchangeable items)
- Products must in “Good Condition” with no damage in any way.
- To exchange a product, the product must be available to purchase on Hifigo.com and its price must be higher or equal to the original order amount.
- The customer will have to pay the difference in price if s/he selects a product of a higher price.
- If you have purchased any items with any discount offered by a joint promotion or other promotional activities but the discount offer has expired at the time of the exchange, the discount shall not be taken into account. Discounts offered by companies other than HiFiGo shall be dealt with per the terms and conditions of the relevant companies.
What’s the process for canceling, returning, or requesting a refund?
Please email our customer service firstname.lastname@example.org with your order number and the reason for the return. Please pack the product carefully.
You must return an item in the same condition as it was received. You must also include, in the same condition as it was received:
- All packaging such as boxes, bags, and tags
- Accessories such as cords and remotes
- Certificates, manuals, and warranty cards
- "Free gifts" or bonus items
- All items included in a bundle
What are the items that can be returned?
We accept the following items for return only if they are returned in the same condition in which they were received, and the items should include all items that were in the original package.
We do not accept the return of CIEM products and custom cables. Defective products covered under warranty could be returned for servicing, but NOT for refund. If the returned item is used, damaged, or missing any parts, or is damaged during return shipping because it wasn't packaged correctly, we might provide a partial refund to account for the loss in the item's value.
When do I need to return the items? When is the deadline?
Items can be returned within 7 days of receipt of delivery according to the online shipping tracking record if you receive a damaged, different or unusable item.
Where do I ship the items so that I can get a refund?
If you want to ship back to us, please contact us at email@example.com.
When will I receive my refund?
In most cases, we will issue your refund within six business days after receiving and checking the returned item.
How much will I receive for a refund?
You’ll be refunded the amount you paid minus 30% of the MSRP which shall be deducted as a restocking fee. For example, if the MSRP is $100, we will refund you $70. If the item is returned without its complete original packaging (original box, foam padding, etc.), an additional 10% packing fee will apply.
Who can I contact, if I have questions about refunds or warranties?
If you have any questions, Please contact us at firstname.lastname@example.org.