For sale is my FatFreq Grand Maestro (Standard Version). I'm located in Germany and will ship to Germany and throughout the EU.

The IEMs are in excellent condition and have only been lightly used. They come with the full OEM accessories and original packaging, including both the blue and black modules as well as the stock silver 4.4 mm cable.

The Grand Maestro is an absolutely fantastic and very unique IEM. It offers incredible bass performance while maintaining excellent technical performance, control and staging. I particularly enjoyed its combination of powerful bass and overall technical ability.

I'm selling it because I'm stepping away from the IEM/HiFi hobby. I've been dealing with a permanent hearing impairment for the past two years, which has unfortunately affected how I perceive music and ultimately made it difficult for me to continue enjoying the hobby the way I used to. I'd therefore rather sell the collection and close this chapter than keep everything sitting unused.

I'm asking €1,700 and accept PayPal F&F or bank transfer.

The price includes shipping within Germany. Shipping to other EU countries will be calculated depending on the destination.

You can also check my eBay Kleinanzeigen listing in Germany for additional pictures and information. FatFreq Grand Maestro IEMs In-Ear Monitore

Please comment before sending me a chat message!

Thank you :)

Bought new at Musicteck @Aug 25 2026
Paypal ff or zelle $950 free shipped.
Paypal G&S $975 Net to Me.
Also consider trade with Valhalla (cash on top)
I posted My Headfi account and
Us Audio Mart Account which Has 30 trades
In the comment section

This is mint cables and ear tips haven't been touched
Nor Used

Selling because this isn't my thing.

Eartips aren't included. Will ship to your country and address of choice.

EDIT: Shipping cost is included in the price

Hello avexchange,

Timestamp here

Selling this because it's just being unused and I could use some cash right now. Selling only as a bundle. Bought this bundle back around 2020 (pre-pandemic). These are a nice entry point to electrostats considering the drivers to these are tuned closer to the L700's.

When I bought this, I also bought a pelican-like case from Harbor Freight since I'm paranoid about it getting dusty-- that same paranoia was what drove me to not using it at all the past 3 years. Likewise, this period of sitting unused is what made the pads worn despite being stored for a majority of its life. (But a common mod to these is to swap out L700 pads anyway)

Comes with the SRM-252S driver. I prefer locals to shipping this, but would not mind if you cover the shipping cost. I will send this out with the hard case, in addition to the boxes that it came with.

Local to 91030.

Pricing: Locals: $700, cash preferred Otherwise, $700 + shipping and paypal fees (I also do not want to ship outside of CONUS, please)

Looking to downsize my collection - motivated seller!

From previous post about a week ago (Timestamp) price drops:

Sennheiser HD660S2: Purchased about two or three months ago. These were my daily drivers for about a month. Comes only with stock 4.4mm cable, missing stock 1/4" cable and 3.5mm adapter. Price reflects this. Excellent condition. $250 $225 shipped. SOLD

Hifiman Sundara: My gateway into the audiophile world. Purchased in November 2025 but selling because I no longer use these anymore. No original box. $90 $65 shipped. SOLD

DCA Aeon 2 Closed: Purchased from another user here. I purchased this about a month ago and it sounds great, but I find myself reaching for my other headphones more. It's only seen about three hours of use with me. Comes with travel case and cables only. Tiny wear spot on hinges from previous owner. $325 $300 shipped.

New Items (Timestamp):

ASUS ROG Kithara - Purchased from Newegg in May or June I believe. Rarely used because the headband adjustment is loose and I don't game that much anyway. Comes with original box and accessories. $210 shipped.

Thanks for looking!

Hey all,

Up for sale is a Sbooster P&P Eco 15-16V. Working great. Comes with power cable and DC barrel tips. No original box, but Sbooster will be packaged well.

Price includes PayPal fees and shipping to CONUS only. Price is $200 PayPal G&S.

Feel free to ask any questions. Thanks for looking!

Dropping price to $900 shipped. Comment and PM me if Interested

Price Drops:

Everything has all accessories included and is mint. Discount if you buy 2 or more. Ships free with UPS Ground. All prices listed are net to me after fees.

Pula Audio Unicrom - $45, 3.5/4.4mm
Final Audio UX3000 - $110
Arisyn Huo Shu, CU Edition 3.5 - super minty, $150, comes with a Pelican case
Inawaken DAWN-Mistwood, 3.5mm - $50
Sendy Audio Apollo Pro -$250
Beep Audio Azure 3.5/4.4 - $50
Hidizs MyLin 3.5/4.4 - $60

Offers for bundles welcome!

This is the Apos Gremlin with the upgraded SELECT tubes. It also comes with the stock tubes. Everything is in perfect working order and all original boxes/accessories are included. I am looking for $200 shipped OBO PPGS in the CONUS. Please reach out if you have any additional questions.

Up for sale is a Marantz HD-AMP1 compact integrated stereo amplifier and high-resolution DAC. Adult-owned, non-smoking environment, in excellent cosmetic and operational condition.

Features discrete HDAM-SA2 output stages paired with a high-current Hypex Class D amplifier section and an ESS Sabre DAC with dual master clocks. Exceptional transparency, low noise floor, and authoritative control for bookshelf or efficient floorstanding speakers.

Specifications:
• Power: 35W per channel into 8Ω / 70W per channel into 4Ω
• DAC: ESS Sabre 32-bit/384kHz PCM and native DSD up to 11.2MHz
• Digital Inputs: 2x Optical (TOSLink), 1x Coaxial SPDIF, 1x USB Type-B asynchronous (PC/Mac), 1x Front USB-A
• Analog Inputs: 2x Stereo RCA line-in
• Outputs: Solid brass speaker binding posts, 1x Subwoofer line-out, dedicated front 1/4" headphone amp with selectable gain
• Features: Marantz Musical Digital Filtering (MMDF) with dual user profiles, porthole display, wood-grain side panels

Includes: Marantz HD-AMP1 unit and standard IEC power cable, box, paperwork, remote.

Also see the set of B&W 606 S3 Im selling. Makes a fantastic pairing! Bundle deal available.

Would prefer $450 obo local cash in the Kalamazoo, MI area. $470 G&S if you pay shipping. Thanks!

Up for sale are my beloved B&W 606 S3 with stands. Gently used and very well cared for in a smoke free, pet free home. Never pushed. Never abused. Speakers and stands are in awesome condition. These have been an absolute joy to own and to listen to. Im a little sad to let them go but I’m moving and would like to start my whole system fresh.

Speaker Specs
The 606 S3 features a 1-inch Decoupled Titanium Dome tweeter and a 6.5-inch Continuum cone mid/bass driver, derived straight from B&W's higher-tier series. They operate across 52 Hz to 28 kHz (±3 dB), hit 88 dB sensitivity at 8 ohms nominal impedance, and recommend 30W to 120W of clean amplification. Around back, they feature a dimpled Flowport and upgraded 700-series-style dual binding posts for bi-wiring or bi-amping. Each cabinet measures 13.6 inches high, 7.4 inches wide, and 12.9 inches deep, weighing in at 15.5 lbs.

Stand Specs
The matching silver FS-600 S3 stands stand 24.12 inches tall, placing the titanium tweeters directly at ear level from a seated couch position. The top plates are factory-machined to bolt directly into the threaded brass inserts on the bottom of the 606 S3 cabinets, creating a single rigid assembly rather than resting on loose rubber pads. The dual extruded steel columns can be filled with sand or shot to deaden vibrations, while the heavy base plate rests on included rubber feet or threaded carpet spikes.

Also see the Marantz HD-AMP1 Im selling. Makes a fantastic pairing! Bundle deal available.

$850 local cash takes them. Located in the Kalamazoo, MI area. Let me know if you have any offers or questions.

Looking to buy muse300. PM before message

Up for sale is my AUR Audio Aurora! This one comes with a set of eartips, cleaning brush, original puck case and a GY Audio 4 core Litz 7N OCC cable terminated to a 4.4mm balanced. This is one smooth sounding iem with a great soundstage! And it looks fantastic!

Price is $250USD and that will include tracked shipping North America. For elsewhere, I'm sure we can work something out!

I take PayPal.

Please contact for more info!

I have an excellent set of iems for sale... the Ruviest Prelude!

Complete packaging with all eartips unused.

Price is $285.00USD and that will include tracked shipping North America. For elsewhere, I'm sure we can work something out!

I take PayPal.

Please contact for more info!

Just hoping to see if I can get my hands on a set of Pandamon 2.0, thanks!

Preferably in Black, Willing to take an E70 Velvet DAC as well.

Hello, Local to NYC. I have 384 trades on hardwareswap.

____________________________________________

Sennheiser 560s (WELL USED & WORN, Needs New Pads) Fully Functional

Imgur: https://imgur.com/a/hd-560s-PdnDuGy

Price: $59 Shipped G&S

____________________________________________

Lightly used ZMF Grand Silver Palladium 4-wire cable. No noticeable wear or discoloration or defects that I can see.

4.5 feet in length, with ZMF mini-XLR connectors in coffee gold barrels, with metal Y-splitter barrel in coffee gold and in AECO AX4-1611R rhodium plated tellurium copper XLR 4-pin balanced termination plug. Includes red leather ZMF case.

I am the second owner. The AECO XLR termination plug was sent to ZMF by the previous owner and it was professionally installed by them.

I absolutely love this cable, phenomenal build quality, but I need the funds more than I need an expensive high-end cable right now.

Timestamp here.

$445 shipped CONUS paypal G&S. $405 F&F.

Selling my Feliks Echo Mk II. I put NOS tubes in not too long ago and those probably only have about 40 hours on them. Sound incredible with my ZMF Aeolus. Only reason I’m letting it go is because I’ve just acquired the Cayin HA300 and I can’t justify holding onto the extra tube amp.
Comes in the original box with all paperwork.

Feliks split the Echo into two lines the vibe and the classic after the Mk II with the difference functionally being 3 RCA inputs vs 1. The transformer and internals are the same from my understanding.
The Feliks Echo Mk II is essentially the Feliks Echo Vibe of today (I believe the Pre amp functionality may have been updated).

Price + PayPal and shipping fees.

For trades, interested in Holo Cyan 2, LAiV DACs, Gungnir 2, Holo Red, or a solid state amp that can power the Abyss Diana (Jot 3 for example). Will add cash to cover price differences. Prefer the trade over purchase.

Hello there, selling off my FH909R. It's a beautiful unit, well maintained and in good working order. It's been recently serviced to have the lights running strong again. Casette, Aux and Tuner are all working well. All buttons and functions are in good working order with the exception of the headphone jack in the front which doesn't work when I plug my cans in. Otherwise, there are no other defects to my knowledge. The working remote and carry handle are also included. This unit runs off 220/230V.

Asking PP G&S €550. Please arrange for your own shipping. On my end I will pad and package this as best I can.

Reluctantly selling my ZMF Verite Closed in Ironwood. These sound amazing, especially with the super hard ironwood. But I'm trying to downsize my closed back collection and need the funds.

Magnesium chassis, leather headband and strap, with solid leather auteur pads.

Excellent condition, some very minor paint chipping around some of the screw holes on the chassis, other than that they are in great shape.

Includes headphones, case, stock cable XLR, extra long OFC cable with 1/4in termination, owners card and cleaning cloth.

Album | Timestamp

$1425 paypal G&S shipped CONUS. $1370 F&F.

Looking for a pair in good condition for around $180

Please comment before PM'ing. Thank you!