Bass Boost cMoy Reviews
• OnHeadphones.com: Editor's Choice Award
• cMoy Headphone Amp Bass BOOST Edition - Head-Fi
• Photo Review of a Custom Bass Boost cMoy v2.00
• pnosker.com: JDS Labs cMoyBB v2.02 Review - 9.5/10
JDS Labs eBay Feedback
Customer Comments
• OnHeadphones.com: Editor's Choice Award• cMoy Headphone Amp Bass BOOST Edition - Head-Fi
• Photo Review of a Custom Bass Boost cMoy v2.00
• pnosker.com: JDS Labs cMoyBB v2.02 Review - 9.5/10
Customer Comments
"Wow! Purchased this on the weekend and John shipped it off first thing Monday morning (Priority). Received it approximately one week later here in Canada. First impressions are indeed Wow! A great little product that absolutely hits the perfect sweet spot between price and quality. I don't believe you can find anything to beat this product at this price point. The cMoyBB with my Westone UM2s, iPod Touch and a Line-out Dock cable is a little bit of audiophile heaven for the long daily commute bus rides. Using it without the Bass Boost feature as I find that my IEMs with the proper seal provide more than adequate bass. Excellent quality, great price, fast shipping and comprehensive communications all contributing to a very satisfied customer service experience. Highly recommended."
—e-Mail from Tony, cMoyBB v2.02 owner
"I just wanted to personally thank you for the awesome experience I had with JDS Labs. You have fantastic customer support and extremely fast shipping. They say you get what you pay for, and this is entirely true. While your Cmoy amp may be a tad more expensive than the regular ones, it blows away the competition. If it hadn't been for the Bass Boost Cmoy amp, my Grado SR-225i's would have never been able to come to life! They honestly sounded weak and nearly tinny because my iPhone was unable to power them; but, your Cmoy amp can easily power them and I'm finally able to hear their full potential! The bass switch adds a whole level of "umph" to the sound. A skeptic turned into a full believer - mission accomplished, John!"
—e-Mail from Matt, cMoyBB v2.02 owner
"ALL I CAN SAY IS WOWWWW. Like Jimmy Walker used to say, DYNOMITE, off the hook, ready to rumble, it hits the spot . . . I just got a Pico Amp [$299] and your new amps [v2.02] are giving it a run for the bucks . . . Your amp beat all my other amps, the biosciencegeek, the xm4, the penguin tin amp was another failure. The other 16 amps I have are attached to all types of messenger bags. Your amps make the grado rs1's, the akg k701, sennheiser hd650, beyerdynamics dt880, and the denon hd2000 sound like dreams."
— e-Mail from jean136yb, owner of the cMoyBB v2.00, v2.01, and v2.02
"I have only been able to listen to it for a few minutes, but my first impression is indeed WOW. I can’t wait to hear my tunes all day tomorrow. . . . I have been using a cmoy, but the bass boost is very different and while I was very happy with it prior to hearing this, your amp has outstanding sound compared to what I am used to. . . . I always preferred accurate sound rather than artificial bass, but I wasn’t terribly thrilled with the low end the dinky cmoy was giving me. Your unit seems to be a beautiful match with my er-6s and I am for once looking forward to work in the AM."
—e-Mail from "Chris"
"What I very much enjoy about the sound through the cMoyBB is its cleanness, clarity/transparency, openness/spaciousness which I find to be very refreshing to my ear and my listening. I've got two home amps and a variety of portable amps (including the TTVJ Portable Millett Hybrid Amp), all of which I enjoy very much as listening instruments. The cMoyBB fills another, and valued/enjoyed, listening niche for me - through its high-quality simplicity - much like well-prepared sonic lemon ice."
— sbulack of Head-Fi
"Fantastic product, I don't know how you do what you do but it's amazing."
—e-Mail from Lee, cMoyBB v2.02 owner
"Thank you so much for your assistance & let me tell you I know cmoys because I’ve owned many but yours takes the biscuit (English for superb!)."
—e-Mail from nigel-hayley
"Absolutely Stunning, Jaw-Dropping, Fantastic Amp. Thank you VERY MUCH!"
—3nvious-9uy
"WOW! What a difference this amp makes. Great service and fast shipping. Thanks"
—pnbarros
"Best sounding CMoy I've bought! Good build quality."
—hikerbiker05
"Fast, friendly service. High-quality, custom built. Awesome sound/bass. Best cMoy!"
—hellefyr
"Awesome seller; great communication. Fantastic amp that blows me away! Thank you"
—theoneinyellow
"The best sounding, most professional and most versatile portable headamp bar none"
—awdrpepper
"I love these amps ! Great sound and very nice and helpful seller ! Thanx ! A++++"
—turbopulsar1488
"BRINGS LIFE TO YOUR HEADPHONES. Don't make the mistake of getting any other cMoy."
—mrlight818
"WOW! BEST EBAYER EVER! Godlike communication! Amp really packs a punch down low!"
—jquincy_v2
"nice product, sounds better than the 7 year old headroom I have"
—garybegd
"Great seller, instant shipping, excellent workmanship, nice amp - thanks John"
—adrmr
"Clean crisp low bass, very clear sound quality! Simply amazing. Best CMOY Amp! A+"
—slrv2 slvr2's Full Review at Head-Fi.org
—e-Mail from Tony, cMoyBB v2.02 owner
"I just wanted to personally thank you for the awesome experience I had with JDS Labs. You have fantastic customer support and extremely fast shipping. They say you get what you pay for, and this is entirely true. While your Cmoy amp may be a tad more expensive than the regular ones, it blows away the competition. If it hadn't been for the Bass Boost Cmoy amp, my Grado SR-225i's would have never been able to come to life! They honestly sounded weak and nearly tinny because my iPhone was unable to power them; but, your Cmoy amp can easily power them and I'm finally able to hear their full potential! The bass switch adds a whole level of "umph" to the sound. A skeptic turned into a full believer - mission accomplished, John!"
—e-Mail from Matt, cMoyBB v2.02 owner
"ALL I CAN SAY IS WOWWWW. Like Jimmy Walker used to say, DYNOMITE, off the hook, ready to rumble, it hits the spot . . . I just got a Pico Amp [$299] and your new amps [v2.02] are giving it a run for the bucks . . . Your amp beat all my other amps, the biosciencegeek, the xm4, the penguin tin amp was another failure. The other 16 amps I have are attached to all types of messenger bags. Your amps make the grado rs1's, the akg k701, sennheiser hd650, beyerdynamics dt880, and the denon hd2000 sound like dreams."
— e-Mail from jean136yb, owner of the cMoyBB v2.00, v2.01, and v2.02
"I have only been able to listen to it for a few minutes, but my first impression is indeed WOW. I can’t wait to hear my tunes all day tomorrow. . . . I have been using a cmoy, but the bass boost is very different and while I was very happy with it prior to hearing this, your amp has outstanding sound compared to what I am used to. . . . I always preferred accurate sound rather than artificial bass, but I wasn’t terribly thrilled with the low end the dinky cmoy was giving me. Your unit seems to be a beautiful match with my er-6s and I am for once looking forward to work in the AM."
—e-Mail from "Chris"
"What I very much enjoy about the sound through the cMoyBB is its cleanness, clarity/transparency, openness/spaciousness which I find to be very refreshing to my ear and my listening. I've got two home amps and a variety of portable amps (including the TTVJ Portable Millett Hybrid Amp), all of which I enjoy very much as listening instruments. The cMoyBB fills another, and valued/enjoyed, listening niche for me - through its high-quality simplicity - much like well-prepared sonic lemon ice."
— sbulack of Head-Fi
"Fantastic product, I don't know how you do what you do but it's amazing."
—e-Mail from Lee, cMoyBB v2.02 owner
"Thank you so much for your assistance & let me tell you I know cmoys because I’ve owned many but yours takes the biscuit (English for superb!)."
—e-Mail from nigel-hayley
"Absolutely Stunning, Jaw-Dropping, Fantastic Amp. Thank you VERY MUCH!"
—3nvious-9uy
"WOW! What a difference this amp makes. Great service and fast shipping. Thanks"
—pnbarros
"Best sounding CMoy I've bought! Good build quality."
—hikerbiker05
"Fast, friendly service. High-quality, custom built. Awesome sound/bass. Best cMoy!"
—hellefyr
"Awesome seller; great communication. Fantastic amp that blows me away! Thank you"
—theoneinyellow
"The best sounding, most professional and most versatile portable headamp bar none"
—awdrpepper
"I love these amps ! Great sound and very nice and helpful seller ! Thanx ! A++++"
—turbopulsar1488
"BRINGS LIFE TO YOUR HEADPHONES. Don't make the mistake of getting any other cMoy."
—mrlight818
"WOW! BEST EBAYER EVER! Godlike communication! Amp really packs a punch down low!"
—jquincy_v2
"nice product, sounds better than the 7 year old headroom I have"
—garybegd
"Great seller, instant shipping, excellent workmanship, nice amp - thanks John"
—adrmr
"Clean crisp low bass, very clear sound quality! Simply amazing. Best CMOY Amp! A+"
—slrv2 slvr2's Full Review at Head-Fi.org