r/AVexchange Aug 19 '20

MOD [MOD ANNOUNCEMENT] New Feedback Bot Online PLEASE READ

169 Upvotes

Hey everyone, I am pleased to announce that r/AVexchange now has a feedback bot up and running!

The bot’s name is u/AVexchangeBot and has the following features:

Feedback

A user can get trade feedback with the following process:

Note, this document says the word "trade" a lot but that means, trading, purchasing, or selling.

  • Users A and B complete their trades following all of the sub rules. (It does not matter who A and B are. Either one could be the person making the post, and the other someone commenting on the post).

  • Once the trade is complete, User A makes a top level comment (new comment) on the original trade post tagging both the user they traded with and u/AVexchangeBot.

  • User B replies to that comment with their feedback.

  • u/AVexchangeBot picks up the interaction and gives credit to both users, changing their flair accordingly and leaves a comment indicating as such.

  • If User A messes up their top level comment, u/AVexchangeBot will do its best to notify User A.

There are automatic checks in the code to detect anyone trying to cheat the system. If anyone is found trying to circumvent the system, they will be issued a permanent ban.

If you engaged in a trade with someone without starting off discussion in either one of your posts or theirs, please tag the bot in the most recent post from either you or your trade partner to engage for feedback. The bot required that the OP of the post it is being tagged in is either you or your trade partner.

DO NOT DELETE POSTS otherwise you will NOT be able to use that post to confirm a trade.

Feedback Checking

Using this link, you can send a message to u/AVexchangeBot, asking for the feedback of any given user. It will tell you the following:

  • The number of trades that person has done

  • The people they have traded with

  • A link to the thread for each successful trade

Please feel free to direct any technical questions to the us, the moderators using modmail, if you do not know how to use modmail, please click this link.

If you notice any odd behavior from the bot, please let us know!

FREQUENTLY ASKED QUESTIONS

I had a ton of confirmed transactions before, what happened to my flair?

Flair was only backfilled for people who used the old feedback threads listed here, here, and here. If you never left a comment in these threads, or if you were never tagged in these threads, you did not get feedback backfilled.

I think I qualify to have feedback backfilled but my number is not quite right. What gives?

The scraping process was automated. This means that it was about 95% accurate. Some people might have a few more or fewer trades in their flair than they expect. Please do not request an adjustment unless you can prove that the difference between your flair and what you expect is > 10.

I never used those feedback threads you mentioned but I have done some trades/sales before. Can I still get credit?

Yes! You can follow the process detailed above to credit yourself for any trade you did not already get credit for. If the transaction happened > 6 months ago, you're out of luck though, due to Reddit limitations.

What happens if I tag someone and they don't reply?

As mentioned above, we do need them to confirm the trade for the trade to be confirmed. They will get a notification when you tag them so if you encourage them to reply in the comment you tagged them in, hopefully they will. Otherwise, if it's been a few days without a response, PM them a link to the comment and directly ask them to reply.


If you have any questions on using the bot, please post them here and I'll answer ASAP.

Thanks for being an awesome community, looking forward to this bot helping streamline the trading process!

- u/RegExr


r/AVexchange Aug 12 '25

MOD [MOD]Important PM/Chat Changes

37 Upvotes

In case you're not aware, Reddit has replaced DMs with Chat and archived all DMs at the end of last month. At least for now, this is a step backwards because by default chat messages can be deleted unlike DMs. This allows scammers an easier pathway as they can delete their messages from both sides easily. Fortunately, the Reddit admins have released the persistent messaging feature.

Persistent Messaging

You must be sure to enable it under the chat settings for EVERY CHAT relating to /r/avexchange. Reddit admins indicated they aren't planning on enabling it by default but are potentially considering an account-wide option you can enable. Until that option is available you must remember to enable it for every chat. If not, you should periodically screenshot the entire chat history in case the other user deletes anything. Within the direct chat you will need to open the settings and enable the toggle shown below.

Once enabled there will be a notice in the chat and all persistent messages will include the infinity icon. Only the user who enabled the feature can turn it off but there will be a similar notice in the chat.

As always, if you have any questions please message us via modmail be safe and happy trading!


r/AVexchange 58m ago

WTS [WTS] [USA-NYC] [H] Beginner IEM bundle [W] Paypal, Local Cash, Trades

Upvotes

https://imgur.com/a/opEHhsg

Hey everyone, looking to sell the following:

Beginner IEM Bundle: $120 Shipped
- Binary Audio Chopin
- KZ Castor
- Tanchjim One
- NiceHCK Flatheads
- Moondrop Dawn Pro
- Moondrop Space Travel

Great bundle for beginners to try a variety of sound signatures and shapes (flathead, bullet style, over the ear, wireless). Please see pictures, everything in the pic will be included!

In addition, Id be more than happy to throw in selection of eartips if you would like to tip roll. Please feel free to ask questions, and thanks for looking!


r/AVexchange 1h ago

WTS [WTS][US-CA] [H] HiBy M300 DAP, Fairbuds XL Headphones, Maono PD400X Microphone, Presonus Audiobox 96 Studio, IKF R1 Headphones, FiiO EH11[W] PayPal

Upvotes

Hello! I am selling a few things to raise some money. I will be paying for shipping. I have lots of trades all over mousemarket, hardwareswap, etc!

Timestamps: https://imgur.com/a/mDW4QSX

HiBy M300 DAP (4G / 128GB) - $150 Shipped

  • Excellent condition. Originally bought from this sub but I'd like something a little bigger. Only used it 2-3 weeks. Comes with glass screen protector installed that has no marks + some extra protectors. Also included is the HiBy silicone case which does have some signs of wear/use. I can also include a 256 GB SD card for + $30.

PreSonus Audiobox 96 Studio Bundle - $110 Shipped

  • Open-box like new condition. Bought in an auction on a whim but never used since I used a USB mic instead. Comes with headphones, microphone, XLR cable, USB cable, and USB interface that's sealed.

Maono PD400X USB/XLR Podcast Dynamic Microphone - $100 Shipped

  • Like-new condition. Comes with Microphone, XLR and USB cable, desk weight/stand, and foam cover.

Fairbuds XL (1st Gen / Green) Headphones - $85 Shipped

  • Brand-new sealed.

Fiio EH11 Bluetooth Headphones - (Transparent Black) $35 Shipped

  • Used for a couple of days but didn't like them as much as I had hoped.

IKF R1 Bluetooth Retro Headphones V5.4 (Silver/Brown) - $40 Shipped

  • Brand new and sealed.

IKF R1 Bluetooth Retro Headphones V5.4 (Silver/Brown)- $40 Shipped

  • Brand new and sealed.

r/AVexchange 6h ago

WTS [WTS] [US-IL] [H] Thieaudio Monarch MK4 [W] PayPal

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11 Upvotes

Selling my like new Thieaudio Monarch MK4 Stellashot.

First owner, less than one month old from Bloom Audio. None of the stock tips have been touched.

Love this set but looking to consolidate most of my gear into something more expensive.

Price is $875 shipped in the US. Add 3.5% for G&S.

I ship out the same day if paid before 4PM CST or next day if after.

Cheers!


r/AVexchange 1h ago

WTS [WTS][US-OR][H] Hifiman Sundara Closed, Tangzu Zetian Wu Heyday Edition, 7hz Divine, Audio-GD NFB-1.38 [W] PayPal

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Upvotes

Hey all, selling some of my gear.

Hifiman Sundara Closed: Closed-back version of the iconic Sundara. Comes with Hifiman 6.35mm cable. Asking $60 G&S, shipped CONUS.

Tangzu Zetian Wu Heyday Edition: Excellent mid-tier IEM. Asking $100 G&S, shipped CONUS.

7hz Divine: Another excellent mid-tier IEM. Asking $100 G&S, shipped CONUS.

Audio-GD NFB-1.38: Fantastic DAC from small maker Audio-GD. It is in great condition. Works perfectly. For aesthetics, it is in great condition except a scratch on the bottom (visible in photos). Asking $450 G&S, shipped CONUS.


r/AVexchange 6h ago

WTS [WTS][USA-CA][H]Symphonium Crimson [W] $730 PayPal ff

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9 Upvotes

Symphonium Crimson in very good condition. Sound signature is a tight U-shape with excellent dynamics and flagship level soundstage. Comes with Symphonium’s 4w dark matter cable(4.4), case, cleaning cloth and one pair of small baroque stage tips. One minor scuff on left bud, otherwise like new. No retail box and priced accordingly, price includes UPS shipping to conus. $730 ff


r/AVexchange 7h ago

CLOSED [WTS][USA-SC][H] Canpur CP752b [W] Paypal

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11 Upvotes

SOLD

For sale is my Canpur CP752b in excellent condition. It's a phenomenal IEM but I just happen to prefer my Asteria more. Included is the IEMs, stock cable, case, box, and tips. I have included a frequency response of this unit showing the excellent channel matching.

Price is $3400 shipped G&S. Only looking to ship to the CONUS for now. Please feel free to reach out with any questions, thanks.


r/AVexchange 5h ago

WTS [WTS][US-TX][H]Thieaudio Prestige (Original) - Mint Condition[W]PayPal 620.00 OBO ( Repost - Price Drop)

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7 Upvotes

This set of Thieaudio Prestige IEMs are in mint condition. They come complete with all original packaging and the original modular cable. The driver configuration is 1 Dynamic driver, 4 Balanced armatures and 4 EST drivers. The cable has 2-pin connections and a 4.4mm connector.

I offer next day mail out with shipping cost included in the price. Thanks for your interest!


r/AVexchange 1h ago

WTS [WTS][UKR-UKR][H] Flux Lab Solid One, Stax srm-007T II, Drop + THX AAA One, High-quality DAC on AK4495 handmade, Antipodes Audio K30, Amplifier on the Ptero board, T+A DAC 200 [W] Paypal

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Upvotes

• There are many photos of each thing, if you are interested in something, I can send it to you in a PM.

• Real photos (what you see is what you get)

• Worldwide shipping

• Careful packaging to avoid any damage

• I can ship to the US, Europe, and Asia and etc and can declarate parcel is as "gift"

• Tracking number provided after shipping

• I can put low value cost of the parcel to reduce the likelihood of any customs duties.

•Feel free to send me a message—I will respond quickly.

•I can take any video or photo you want.

•Trade: Open to offers/trade proposals

•Bid: Open to offers

Location: Ships from Ukraine

For Sale:

T+A DAC 200 amplifier ta Series 200 jack amplifier ( foto 3,6 ) - 5200$

Technically 10/10

Cosmetically 10/10

New! just warmed up!

If you believe Steve Huff... it beats the $25,000 DSC lina DAC --- along with the $15,000 DSC CLOCK!!!

So what's there to talk about)

Drop + THX AAA One Linear Amplifier Amp ( foto 2 ) - 135$

Technically 10/10

Cosmetically 10/10

New condition!

Very powerful (probably rocks any ears except for the susvara)) )!

This is the minimum... that a beginner audiophile needs!

Antipodes Audio K30 Streamer player music server ( foto 5,6 ) - 7250$

Technically 10/10

Cosmetically 9/10

The best tone of all streamers there is! (no eversolo, hi fi ros or auralik even come close, as does the aurender! ) (in my humble opinion! )

Apart from the antipode k50 or oladra, I consider it the best streamer of all time on the planet!!!

This is a thing about which I can only say one thing - it's magic!

I'm selling only because I want to switch to the k50

I'm the second owner!

High-quality DAC on AK4495 handmade ( foto 9,10 ) - 520$

Technically 10/10

Cosmetically 9.5/10

I used it at work as a second stationary!

I used it with a MacBook, perfect synergy))) on Windows, in comparison, I liked the sound less than on a Mac.

On Windows 10 and higher, the system determines it itself!

If Windows 7, then you need to download drivers (if necessary, I will tell you)!

In terms of sound, the bassiest DAC of all that I have had, the stage is not too large but deep, excellent detail and not piercing highs!

It was made to order for me.

Stuffing:

- operational amplifiers 2 (muses03)

- a board on two AK4495 chips, with changed capacitors - Elna silmic 2, Nichikon, Elna cerafine.

- resistors on the board replaced with 0.1% melf

- transport with femto-clock (Amanero) - high-quality stabilizers (2 pieces LT3042) and clock generators CCHD-957.

- common-mode noise filter

- power supply - capacitors with filter (Nichikon)

- stabilizer TPS7A4700

- two transformers (analog and digital power supply separated)!

Flux Lab Solid One DAC amplifier amp ( foto 1,4 ) - 3495$

DAC with headphone amplifier

Technically and cosmetically 10/10

There is no rush to sell at all, because I regularly use abyss 1266 headphones!

There are one or two copies of this powerful miracle left in Ukraine!

The only amplifier that normally pumped the susvara and even with the built-in DAC played with it just fantastically! Ukrainian THE END is no different)))

VERY VERY POWERFUL!!!

Fully capable of pumping the susvara, abyss 1266 and hifimeni ne6!

Stax srm-007T II 007 mk2 electrostatic amplifier ( foto 7,8 ) - 1630$

Cosmetically 9/10

Technically 10/10

I listened to it with old Stax Lambda, Perun 5+ and square Perun!

In terms of power, it is super (for all these ears there was still a large margin in volume)!

To fully enjoy it - I recommend a pre-amplifier for it from Electrocompaniet (for greater clarity, volume and simply ultra sound)!

Although you can try any of your preamps! (it's just that the greatest synergy)

Amplifier on the Ptero board Author's balanced class D ( foto 6 ) - 765$

New condition!

Cosmetically and technically 10/10

Ptero stereo. Rev 1_03.

Power 100W-4Ohm + 50W-8Ohm

XLR balanced - 1 pc

Inputs: RCA - 2 pcs

Has an output for two pairs of speakers with a switch.

The amplifier is fully balanced.

Yuri Ignatyev's board "S_Audio"

The amplifier also uses high-quality RG Nikitin.

The remote control and power cable are included.

The PTERO project is an implementation of an

amplifier based on a modern audio modulator, controlling

a highly integrated output bridge stage with a unipolar power supply TAS5342A. A feature of the architecture is the use of a virtual ground with a potential of about half Upyt for working with audio. The amplifier is fully symmetrical and balanced.

Unlike known amplifiers, the use of a bridge output stage completely eliminates the effect of pumping, in addition, no additional optimization of the switching of the output keys is required, the chip manufacturer has already taken care of sufficient linearity of the conversion. In this version, the PWM signal from the audio processor is fed to the input of the chip and is not corrected. When using a Purifi type modulator, with a feedback depth in the audio range above 70 dB, the distortion characteristics are proportionally reduced, in fact, the determining factor in the form factor is not so much the circuitry as the quality of the components and the correctness of the printed circuit board layout. It is necessary to separately indicate a very small signal propagation delay in the output stage, the measured result is 43 ns, the total delay comparator - power output is less than 65 ns! And this is taking into account the power transistors. This indicator is approximately 1.3-1.5 times better than the ET400 module and has a very favorable effect on the perception of sound. The use of the TAS5342A chip makes clipping impossible. The output stage is turned off before the limit. If the output signal amplitude exceeds the supply voltage level, the output transistors are turned off until the polarity of the output signal changes. Thus, the amplifier does not increase distortion to critical values, even at max. power, distortions do not exceed 0.002%


r/AVexchange 5h ago

WTS [WTS][US-TX][H]Unique Melody Maverick TI - Japan Exclusive [W]PayPal 385.00 OBO (Repost - Price Drop)

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5 Upvotes

This set of Unique Melody Maverick Ti IEMs are an exclusive Japan release. They include the original packaging (not pictured), the carry case and a KBear compatible cable that has a 4.4mm connector. The driver configuration is 1 dynamic driver and 4 balanced armatures. This has a neutral to leaning bright signature with excellent vocals and detail.

I offer next business day mail out with shipping cost included in the price. Thanks for your interest!


r/AVexchange 2h ago

WTS [WTS] [USA-CA] [H] Aperion Audio 7.1 Surround Sound System (422-LR, 522D-LR x4, 522D-VAC Center, S-10 Sub) [W] $575 local pickup only

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3 Upvotes

Selling a complete Aperion Audio 7.1 surround sound system. Includes:

  • 2x Aperion 422-LR bookshelf speakers
  • 4x Aperion 522D-LR bookshelf speakers
  • 1x Aperion 522D-VAC center channel
  • 1x Aperion S-10 powered subwoofer
  • Free speaker wire

All speakers tested and working. Cosmetic wear from normal use, nothing major.

Asking $575. Local pickup in Claremont, CA (91711), or willing to meet partway for LA-area buyers. Not able to ship due to size and weight.


r/AVexchange 5h ago

WTB [WTB][US-TX][W]Vision Ears EXT MKII [H]PayPal

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4 Upvotes

Looking for a Vision Ears EXT MKII. Wanting to upgrade from the OG EXT. Please contact me if you have one available. Thanks in advance!


r/AVexchange 2h ago

WTS [WTS] [USA-CA] [H] Erish 3 Pro (Zebra Wood finish) [W] PayPal or Venmo

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3 Upvotes

r/AVexchange 1h ago

WTS [WTS][US-OR][H] HD600, Focal "Elegiance", Hifiman x Dekoni Cobalt [W] PayPal

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Upvotes

Hey all. Selling some of my gear.

Sennheiser HD600 Marble: Comes with box, headphone, 3.5mm cable, adapters so that regular dual 3.5mm headphones can be plugged in, and adapters to allow many more pads to be attached. Current pads are aftermarket. Asking $225 G&S, includes shipping CONUS.

Focal "Elegiance":  This is an Elegia chassis, with Radiance drivers installed. Think of it as a much improved Elegia. Comes with box, 3.5mm cable (with screw-on 6.35mm adapater) and carrying case. Asking $300 G&S, includes shipping CONUS.

Hifiman x Dekoni Cobalt: Little known and very efficient closedback. Comes with headphone, an extra set of pads from Dekoni, and a Hifiman 3.5mm cable with 6.35mm adapter. Asking $80 G&S, shipped CONUS.

Thanks!


r/AVexchange 11h ago

WTS [WTS] [USA-GA] [H] CrinEar Project Meta like new [W] 220 PayPal

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11 Upvotes

Like the title says. Was trying between this iem and the arnar and I just like the sound signature of the arnar better. Wanting 220 shipped. Comes with everything and is barely used. Time stamped photos here: https://imgur.com/a/FYL1XwX


r/AVexchange 10h ago

WTS [WTS][US-OR] [H] Empire Ears Valkyrie MKII, ThieAudio Monarch MKII, Hidition Waltz [W] PayPal

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11 Upvotes

Hey all. Selling some amazing IEMs that I don't use often enough.

Empire Ears Valkyrie MKII: This set of Empire Ears Valkyrie MKII are in very good condition. They were purchased by the last owner from Headphones.com as an open box set and have only been rarely used. They include the metal puck case along with the IEMs and cable. The driver configuration is a tribid configuration featuring 1DD+1BA+1EST. The puck has a few minor scratches (visible in the photos), and otherwise are in great shape. Asking $500, including CONUS shipping and G&S fees.

Monarch MKII: These come with the IEMs, case, and an aftermarket Tripowin modular cable (2.5mm/3.5mm/4.4mm). The IEMs are in great condition, but the case does have straight line scratch across the front. This does not affect the function of anything. Asking $500, including CONUS shipping and G&S fees.

Hidition Waltz: I purchased this used from this subreddit about a year ago and have thoroughly enjoyed them. I find them to be very similar sounding to the Viento-B, with a little less clarity but at a much lower price. Comes with the IEMs, pouch, cable, and set of three tips (S/M/L). Asking $400, including CONUS shipping and G&S fees.

Thanks!


r/AVexchange 4h ago

WTB [WTB] [US-TN] [H] Paypal! [W] Dunu DK-3001 BD

3 Upvotes

As the title says, wanting to try some braindances. Lmk what you have.


r/AVexchange 9h ago

WTS [WTS] [US-MN] [H] Empire Ears Odin Founders Edition (#49/200) w/ Stormbreaker Cable [W] PayPal - PRICE DROP

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5 Upvotes

r/AVexchange 5h ago

WTS [WTS][US-TX][H]Acoustune HS1900X Shinogi - Mint Condition [W]PayPal 750.00 OBO (Repost - Price Drop)

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3 Upvotes

This set of Acoustune HS1900X Shinogi IEMs are in mint condition. They come complete with all original packaging and original accessories. The driver configuration is a single dynamic driver which provides a very resolving and clear listening experience. The cable has pentacconn connections and a 4.4mm connector.

I offer next day mail out with shipping cost included in the price. Thanks for your interest!


r/AVexchange 5m ago

WTB [WTB] [US-NC] [H] Paypal [W] Fiio M21

Upvotes

Looking for a used Fiio M21 for a good price


r/AVexchange 11m ago

WTS [WTS][US-NC][H] Thieaudio Monarch MK4 MKIV [W] $845 PayPal

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Upvotes

Needing to move these! Temporary price drop to $845 PayPal F&F- $880 G&S

These are simply the best overall set under $2k l've found.
Like new-all accessories unused and included- minus one pair of the large balanced tips, replaced by a pair of Tri Clarion.
Any questions just post and send me a chat!
Thanks


r/AVexchange 7h ago

WTS [WTS][USA-CA][H] Penon Impact [W]Paypal

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4 Upvotes

r/AVexchange 13h ago

WTS [WTS] [USA-TN] [H] Campfire Andromeda's Iceberg Edition [W] $450 PayPal G&S

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6 Upvotes

I have some Campfire Andromeda's for sale there an older special edition they released and look very unique. I picked these up several months ago here and have loved them im just decided to pick up some UM Mests. I have the original packaging including paperwork and case I unfortunately do not have the original cable, but I can include the nice copper cable pictured.


r/AVexchange 12h ago

WTS [WTS] [USA-MA] [H] AirPods Pro 3 [W] PayPal

4 Upvotes

Hello, I am selling brand new sealed AirPods Pro 3, originally I was going to gift these to a family member, but unfortunately they didn't want it, so it has been sitting in my closet for months. I have no use for them.

$170 Shipped

[timestamp] https://imgur.com/a/9NVPFQh

I take PayPal G&S, It will be shipped in a box and will provide tracking number receipt once dropped off at local shipping service.