Electrostatic Energiser For STAX Heaphones
Sale price₹ 44,990 Regular priceMRP: ₹ 54,990
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One of the reasons headphones and earphones in India are more expensive than overseas is because of the Goods & Services Tax in India.

Don't let the GST input go to waste especially if you can avail an offset.

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1. What is a Pre-Order product?
A Pre-order product is a product that we especially order for you from the brand. Once you place an order with us, we will order it from the brand for you.

2. How do I know when the product will be delivered?
There is a rough timeline on the product availability and once it has been confirmed with the brand, we will inform you. 

3. Do you order the product from the brand as soon as I place the order?
We do not immediately order the product but add it in the upcoming order.

4. Will you be giving me updates?
Once we have ordered the product and have a confirmed timeline, we will give you an update.

5. I’d like to make changes to/cancel my order?
You can only cancel/make changes to your order until we place the order with the brand. Since the product is specifically being ordered for you, we will be unable to cancel/make changes once we order the product from the brand.



7 Day Replacement Guarantee

In case you receive the STAX - SRM-252S with a manufacturing defect, please raise a return request within 7 days of delivery.

However, if you receive an incorrect / damaged / different product or one with missing accessories, please raise a return request within 24 hours of delivery. In case you receive a product with a missing, incorrect, or faulty accessory, you will be given a replacement accessory instead of the entire product.

Please make sure that the product is in the original packaging with all the accessories it came with. We'll also need an unboxing video and images of the parcel to investigate about the discrepancy. You may be asked to share images of the product and the packaging received for us to determine the damage or defect prior to approving the return request. The free replacement will be shipped only once the original order is returned.

A replacement will be issued only if:

- It is found to be defective 
- It is determined that the product was not damaged while in your possession
- The product is not different from what was shipped to you
- The product is returned in original condition (with brand’s/manufacturer's box, MRP tag intact, user manual, warranty card and all the accessories therein)


Warranty & Services

This STAX - SRM-252S comes with a warranty from STAX that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.

Read more about STAX's warranty in India.



Tenure available: 3, 6 and 9 Months Eligibility: Above 18 years of age, Credit Card NOT Required Transaction value: Available on all orders Payment Gateway: Please choose Snapmint Cardless EMI at checkout
Tenure Interest% Downpayment Installment Interest
3 No Cost EMI ₹ 11,248 ₹ 11,248 ₹ 0
6 Low Cost EMI ₹ 11,248 ₹ 5,871 ₹ 1,507
9 Low Cost EMI ₹ 11,248 ₹ 4,067 ₹ 2,924

Snapmint Cashback Offer

Offer valid from 22/03/2023 to 31/03/2023
Users will get 10% cashback upto a maximum of ₹500
The offer is valid only for transactions made through the Snapmint payment option.
The offer is valid only for the first transactions of customers through the Snapmint payment option.
The Cashback offer is valid from 22nd March at 12:00 am to 31st March 2023 at 11:59 pm
The Cashback will be processed on the same day in the Snapmint wallet on which the last EMI is paid.
Cashback is valid only when the customer pays their EMIs on time.
The offer would not be applicable in case of canceled or refunded transactions. In case of a partial refund, the cashback will be applicable only on the remaining value.
The Offer can be availed only once per user during the campaign period.


Tenure available: 3 or 6 Months
Eligibility: All above 21 years of age
Transaction value: Available on all orders below Rs. 60,000/-
Payment Gateway: Please choose Razorpay at checkout

Cashback offer
  1. Valid from 10th Feb to 9th April
  2. Users will get 10% cashback up to a maximum of ₹1000
  3. The offer is valid only once per user during the offer period.
  4. No coupon code required.
Tenure Interest% Installment Interest
3 No Cost EMI ₹ 14,997 ₹ 0
6 No Cost EMI ₹ 7,498 ₹ 0


Tenure available: 3 Months
Eligibility: All Simpl users
Transaction value: Depends on your credit limit
Payment Gateway: Please choose Simpl Pay in 3 at checkout

Tenure Interest% Installment Interest
3 No Cost EMI ₹ 14,997 ₹ 0

Bajaj Finserv

Tenure available: 3 Months
Eligibility: All Bajaj Finserv card owners
Transaction value: All orders above Rs. 4,500/-
Payment Gateway: Please choose Razorpay at checkout

Tenure Interest% Installment Interest
3 No Cost EMI ₹ 14,997 ₹ 0


Tenure available: 3 Months
Eligibility: All Zestmoney users
Transaction value: Depends on your credit limit
Payment Gateway: Please choose Cashfree at checkout

Tenure Interest% Installment Interest
3 No Cost EMI ₹ 14,997 ₹ 0


Cashback Offer
  • Select Cashfree at Checkout to transact through Mobikwik
  • Get Additional Cashback upto Rs. 500/- on transaction via MobiKwik wallet
  • Use Code :- MBK500 on MobiKwik Payment page to avail the additional cashback.
  • Transaction to be done through MobiKwik wallet only
  • Offer can be availed on minimum transaction of Rs. 1999/-
  • Offer can be availed once per user during the campaign
  • Offer valid from 10th January'23 till 30th June'23
  • T&C Applied

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The SRM-252S has been exclusively designed for STAX earspeakers. This driver unit works as an amplifier. Pair your headphones with the SRM-252S and enjoy the best that the world of music has to offer. With its high-quality PRO-bias 5-pin connector, the STAX SRM-252S can directly connect to a portable audio player, CD player or PC via its audio output terminal. You can also simultaneously connect it to a loudspeaker thanks to the parallel output terminal.



New high-voltage transistors and low-noise FETs are carefully selected for the best audio experience. Smooth and rich sound is produced by the output stage thanks to the emitter-follower configuration. The class-A amplification does not have any coupling capacitors. This lets you hear your music with every detail crystal-clear. The SRM-252S features a simple design that is high on functionality. This driver unit is the size of a CD jacket case. The aluminium extrusion chassis does away with the heat caused by the inbuilt class-A DC amplifier while at the same time, improving its reliability.

1 Year Warranty

Don't sweat it, this STAX - SRM-252S comes with a 1 Year warranty from STAX that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.

Read more about STAX's warranty in India.

Customer Reviews

Based on 2 reviews
Arjun (Mumbai)

While I am no expert, I enjoy my music as much as the next guy. Having said that, I’ve been holding on to these Stax headphones that I got (at insane prices) on Headphone Zone! The headphones and the SRM-252S (Power Unit).

Right off the bat - I was on site for some planar magnetic in-ear headphones. Browsing the schitt smthing smthing, I think - but the site layout (which is great) led me down the rabbit hole and straight to the stax page (went through a blog on different types of headphone systems - planar, and that’s where I saw electrostatics). And I was familiar with planar ever since i got my Audeze iSINE 20 back at an apple store somewhere - and then my Audeze Mobius from right here.

But electrostatics - that was news to me.

I started checking out what the zone had on offer and was immediately aware of the price drops on the aforementioned Stax equipments. I did some digging online, and liked what I was reading, and the whole time I was worried that some Noob would come in and grab the deal on offer before I got a chance to confirm. Having made up my mind - ready to go with Stax - I wanted to pay by EMI and worked out the math - everything was set. Put the goods in my cart and off to the checkout I went - first (and only) snag - the EMI option decided to glitch on me that day!?!

But I wasn’t going to miss out on this offer (the best online reviewers had given the Stax SRM 700 insane reviews BUT at half the price quoted - and that’s what was on the table)!
- On discussing it with site reps it turns out their payment methods are a bit lagging. Only complaint. Other sites are accepting cryptos as well. Even local e-tailers right her in Mumbai. So I don’t see why any form of payment should be unavailable. Not excusable. Only complaint.

Boom - a couple of days (48 hrs) later - there shipping is the best - and I had my new (1970s) piece of tech! Plugged it into my Astell & Kern 47 DAC (also HedphZne) and off I went - it was like “being in the studio.” Very impressive. But we all knew that from the literature and the on-line reviews by various experts!

In real time - this whole lockdown situation - and I had a review link pending from my favourite website - That’s when I decided to watch Star Wars in the Machete order, with my SRM252S plugged into the headphone jack of my iMac. And the Stax SRS 700 plugged in to that. To be specific. Come to think of it; I could have used the AK47 as a DAC supplementing the computer. But I didn’t want to fiddle with too many wires.

So that’s starting with Episode IV (de-specialized), Episode V (de-specialized), Episode II, Episode III and finally - Return of the Jedi. Which I’m about to hit - possibly post Hamilton.

On Stax. Naturally.

The sound - totally blew me away. Episode IV was like a flood of emotions (as it always is) the spaceships, the voice over comms - “Help me Obi-Wan Kenobi - you’re my only hope” - the lightsabers - on electrostatics - I got more and more in sync with this in episode III - but that’s mostly because they use lightsabers a ridiculous amount of time in the prequels. The droids. R2 in particular. Was able to pick out all his little beeps and warbles.Should have taken notes. Empire was Empire - nobody can say anything bad about that movie. Total satisfaction. Everything was stand-out. Not just the audio. The swamp on Dagobah particularly came alive on the Stax Earspeakers.

By the time we get to the prequel trilogy I was totally in tune with my headphones. Grievous coughing. Felt like the SoB was standing right behind me. The constant discharge of sc-fi weapons. And the completely electric sound of the lightsabers! Don’t get me wrong - the whole time I was rolling my eyes at all the wormholes in the plot. But the level of appreciation for sound crafting - and the crazy part is the most stand out moment from Episode III is not full of music - but completely absent any - the moments between Skywalker and the Emperor in his senate chambers. Completely threw me off balance as my ears stretched out in the space of the stage set - searching for any sign of the signature John Williams symphony. Nothing. Just two really bad dudes plotting to take over the galaxy! And darkness. Epic.

Obviously that final battle; the duel of the fates - as it were - a lot of eye-rolling - and then I heard it - the lightsabers sound like a part of the John Williams orchestra - and the funny part is - it sounds like an instrument being welded by an amateur - 2 actually - it was hilarious. A real standout moment for me going forwards. All thanks to amazing audio clarity.

Through all of this - grateful to Headphone Zone for importing and stocking all this outstanding product! We all know how crazy importing anything can be in incredible India! And the price drops - how do you guys do it?

Would highly recommend Stax! Hadn’t watched the original trilogy in a while and hearing it on an almost immaculate sound setup makes me wa...

Shubhra Raje (Ahmedabad)
Design and Comfort:
Sound Quality:
Value for Money:

I’m a newbie in the world of sound, and audio systems. I ordered the STAX amp for a set of electrostatic headphones (Kaldas RR1). I love the compactness and portability of the STAX amp, given that currently I do not have a dedicated streamer or DAC, and use my laptop or smartphone as the streaming device. The STAX amp is hardworking and provides reasonable nuance and detail in sound quality for its size. That said, I do anticipate upgrading to a more powerful amp in the near future.

Hey Shubhra, thank you so much for the awesome review!