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

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

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

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!

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

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.

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

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
Audio Driver Type	Balanced Armature Driver
Best Sellers Rank	#84,313 in Electronics ( See Top 100 in Electronics ) #90 in Recording In-Ear Audio Monitors #3,971 in Earbud & In-Ear Headphones
Cable Feature	Detachable
Carrying Case Color	Black
Carrying Case Material	Aluminum or metal
Compatible Devices	Cellphones
Connectivity Technology	Wired
Control Method	Remote
Control Type	Media Control
Controller Type	Media Control
Customer Package Type	Standard Packaging
Customer Reviews	3.8 3.8 out of 5 stars (272)
Date First Available	August 22, 2010
Earpiece Shape	Rounded tip
Generation	2
Global Trade Identification Number	00846430002012
Hardware Interface	3.5mm Audio
Headphones Jack	Detachable Connector
Included Components	In Ear Monitors Detachable, 5 ft. cable with 3.5mm gold plated stereo plug Assortment of eartips: 4 Dual Flange Silicone Pairs: S, M, L, XL. 2 Triple Flange Pairs: Standard and Large. and 2 Foam Pairs: Standard Filter removal tool and replacement filters to protect the BA drivers from ear wax Shirt clip Zippered storage case Channel-Matching Compliance certificate
Input Device Interface	3.5mm_trs
Is Discontinued By Manufacturer	No
Item Weight	3.2 ounces
Item model number	ER4SR
Manufacturer	Etymotic Research
Material	Aluminum, Metal
Model Name	ER4SR
Noise Control	Sound Isolation
Number of Items	1
Product Dimensions	32 x 0.25 x 0.25 inches
Recommended Uses For Product	Music
Sensitivity	45 Ohm
Series Number	4
Special Feature	In-Ear Monitors
Specific Uses For Product	Music, Studio Recording
Style	High-Fidelity
Supports Bluetooth Technology	No
UPC	846430002012
Unit Count	1.0 Count
Water Resistance Level	Water Resistant

Etymotic ER4-SR

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