Question 1

How does the er4sr compare to the older er4s / er4p?

Accepted Answer

While both the HF and ER4 series use a balanced armature driver, the ER4S is precision matched to within 1 dB. Performance certificate is included with the ER4 series.The new ER4SR uses the same high performance drivers as the original ER4S. Both are designed to produce the most accurate sound reproduction possible. They are often used by studio recording engineers (S is for Studio Reference). The original ER4P and ER4P-T were designed for audio engineers and audiophiles on the go (P is for portable). They are tuned to maximize sound from portable music players. The new ER4SR will give you the sound accuracy you expect from the original ER4S or P with the added benefit of removable cables. If you prefer a little more in the lower frequencies, go for the ER4XR--Extended Range.Please feel to reach out to our customer service department at 888-389-6684 if you have further questions.Etymotic Research

Question 2

Are these flat/true for mixing on the go? If not which ones?

Accepted Answer

These earbuds are true and great for iPod iPhone use. Good highs and mids but a little tinty in the bass end. Nice tight buds if you use the ety cones that are supplied. Also they are number one in noise reduction!! Work or play they won’t fall out. 8 of 10!

Question 3

What is the difference between this xr and the sr version?  thanks all!

Accepted Answer

Thanks very much for your question. The  XR has a modest bass boost and the SR are completely flat. World Wide Stereo is 39 years old and a proud authorized Etymotic Research dealer.

Question 4

Do the headphones sold through amazon warehouse deals still come with the etymotic research warranty?

Accepted Answer

No. WiredforLess is correct. Only NEW purchases made from an AUTHORIZED Etymotic reseller will be eligible for warranty coverage. Amazon itself is NOT an authorized reseller and warehouse deals fall under used product.Not all sellers currently operating on Amazon or other online sites are authorized. If you are not certain whether or not a reseller is authorized, you are advised to first call Etymotic's Customer Service line at 888-389-6684.Etymotic Research

ASIN	B01GW785KQ
Age Range Description	Adult
Antenna Location	High-fidelity audio listening, Professional monitoring, Critical listening, Portable use
Audio Driver Type	Balanced Armature Driver
Best Sellers Rank	1,427 in In-Ear Headphones
Box Contents	Ear Cushions
Brand Name	Etymotic Research
Cable Features	Detachable
Carrying Case Color	Black
Carrying Case Material	Aluminum or metal
Colour	Black
Compatible Devices	Android,iPhone,iPod,iPad,PC,Mac,Laptop,Computer,Mobile Phone,Apple iPhone,Samsung Galaxy,HTC,iPhone 4,iPhone 4S,iPhone 5,iPhone 5S,iPhone 6,iPhone 6S,Galaxy S6,Galaxy S7,DAP,High Resolution Audio Player,High Res Audio Player
Control Method	Remote
Control Type	Media Control
Controller Type	Media Control
Customer Package Type	Standard Packaging
Customer Reviews	4.2 4.2 out of 5 stars (287)
Earpiece Shape	in-ear
Enclosure Material	Aluminium
Frequency Range	10 Hz - 16 kHz
Global Trade Identification Number	00846430002012
Headphone Form Factor	In Ear
Headphone Jack	Detachable Connector
Headphones Ear Placement	In Ear
Impedance	45 Ohms
Is Autographed	No
Item Weight	91 g
Manufacturer	Etymotic Research, Inc.
Model Name	ER4-SR
Model Number	ER4SR
Network Connectivity Technology	Wired
Noise Control	Sound Isolation
Number of Items	1
Product Features	Noise Isolation
Sensitivity	45 Ohm
Series Number	4
Specific Uses For Product	Professional monitoring, Audiophile listening
Style Name	High-Fidelity
Theme	Professional Audio Equipment
UPC	846430002012
Water Resistance Level	Not Water Resistant

Etymotic ER4-SR Studio Reference In-Ear Isolating Earphone with Replaceable Cable - Black

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