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| iBasso P3 Heron | |
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| Topic Started: 9 Sep 2008, 03:04 PM (9,307 Views) | |
| ahdui | 27 Aug 2009, 09:20 AM Post #151 |
aux!
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OPA2134 - Gives a lot of warmth in the lower mids and an extra "umph" for the bass. AD8066 - Opens up the sound and gives a lot of texture to the lower spectrum. Both op-amps are more for people who wants more "boost" in their bass. you can also try OPA2107, AD4841-2, AD8656, Intersil 55002C for the signal Path THS4302 and AD8397 for the ground path. |
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Transportable: iRiver h120(2300mAh)→Sysconcept Optical Cable→AOS Electornics Co. Piccolo DAC→ahdui's CryoFreeze™ TCu IC→ahdui's Enfo PA-1→Custom Shure SE530 Backup: AMB y-1 DAC (MisterX Mod) Cycling: Sansa Clip 4GB→Philips SHS3200 Earhooks Portable: Rio Karma→UltimateEars Super.Fi 5eb Backup Rig: RedWineAudio 40GB iPod Photo→ahdui's CryoFreeze™ RBT IC→iBasso P3 Heron(ahdui Mod) →Custom Shure SE530 Home: "Upgrading In Progress"→Alessandro MS Pro/JVC HP-DX1000 Desktop: PC→Belden 1505F→CityPulse DAC 7.2x II→Belden 89207→KRK Rokit Powered 5 | |
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| chesterqw | 27 Aug 2009, 11:04 AM Post #152 |
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the switch is long. it boost the ego too  the cake is walnut! i like the opa2134 and opa2111. but i got bored of them after awhile and changed to the opa627 and lm7171(incredible slew rate, hopefully nothing bad happens :P) if i am correct, class-A biased opamps needs the buffer to really shine? |
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| theory_87 | 27 Aug 2009, 09:22 PM Post #153 |
I Need More Money To Spend
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Err. You don't have enough men's ego?  I using the D10 with ad744 in Class A. Without EL8201 as buffer, I lost all the bass impact and texture. I'm not sure if it due to the Class A or it the opamp itself. 
Edited by theory_87, 27 Aug 2009, 09:24 PM.
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Source: Sansa Clip x 2 | iAudio U2 | Rio Karma | iPod Nano 4GB Gen 1 x 2 | iMod 60GB iPod Photo | iPod Gen 5.5 x 2 | iRiver H140 | HP Pavilion dv6121TX Amp: Xin SuperMicro IV | theory_87's DPA1 | iBasso D10 Modded | iBasso fi.Quest | Onkyo TX-SV919THX | Yaqin CD1 Tube Buffer w Mullard E88CC | AMB CK²III Heaphone/IEM/Speaker: CrossRoad MylarOne X3 | SoundMagic PL30 | Modded Altec Lasing im716 | Fischer Audio Eterna w modified UM56 | Custom Ultimate Ears® super.fi 5 Extended Bass™ | Custom Ultimate Ears® #4/1000 triple.fi 10 Pro™ + mid driver| ACS T1 | JBL PS100 & Yamaha VS10M Others: xxx red series 3.5mm & RCA IC | DIY HGA 3.5mm IC | DIY Jena Cryo 3.5mm IC | DIY ALO SXC 3.5mm IC | Custom Optical IC | Ridox contact protector/enhancer | DeoxIT ProGOLD | Mapleshade SilClear | |
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| chesterqw | 28 Aug 2009, 12:27 AM Post #154 |
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nah, the ego is a joke.truth is there is too many switches at koba  i found one that fits and bought it.hmm... maybe i should get a 2132 into class-A and try it out
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| theory_87 | 28 Aug 2009, 01:57 AM Post #155 |
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I Need More Money To Spend
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No harm trying  Only harm is your time and wallet. But I'm sure it enjoyable. 
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Source: Sansa Clip x 2 | iAudio U2 | Rio Karma | iPod Nano 4GB Gen 1 x 2 | iMod 60GB iPod Photo | iPod Gen 5.5 x 2 | iRiver H140 | HP Pavilion dv6121TX Amp: Xin SuperMicro IV | theory_87's DPA1 | iBasso D10 Modded | iBasso fi.Quest | Onkyo TX-SV919THX | Yaqin CD1 Tube Buffer w Mullard E88CC | AMB CK²III Heaphone/IEM/Speaker: CrossRoad MylarOne X3 | SoundMagic PL30 | Modded Altec Lasing im716 | Fischer Audio Eterna w modified UM56 | Custom Ultimate Ears® super.fi 5 Extended Bass™ | Custom Ultimate Ears® #4/1000 triple.fi 10 Pro™ + mid driver| ACS T1 | JBL PS100 & Yamaha VS10M Others: xxx red series 3.5mm & RCA IC | DIY HGA 3.5mm IC | DIY Jena Cryo 3.5mm IC | DIY ALO SXC 3.5mm IC | Custom Optical IC | Ridox contact protector/enhancer | DeoxIT ProGOLD | Mapleshade SilClear | |
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| bernlim | 30 Aug 2009, 06:23 PM Post #156 |
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Hey thanks. Anyone have AD8066, AD743 and AD8397 to spare, can sell to me? I wanna try out how it will sound. p.s, the new interconnect i got helped.. but still not reaching the sound i would like, so hoping that rolling with these new opamps will do it ^^ |
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Poison is bad, but its so good Home: iPod Nano 5g-->Ultimatelink Silver-->iBasso P3-->Alessandro MS-1 Computer-->iBasso D3-->UM3x/MS-1 Portable: Zen X-Fi--> Westone UM3x with Shure complys | |
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| chesterqw | 31 Aug 2009, 03:09 PM Post #157 |
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there is background noise when they are used in L/R and when replaced with the opa2132, no problem. what resistor value to use for class A biasing? nope.  i think i need to save money again fixed. a pad got lifted by me when i removed the dead caps :x Edited by chesterqw, 1 Sep 2009, 03:59 PM.
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| bernlim | 1 Sep 2009, 07:29 PM Post #158 |
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hey i don't know if you guys heard already, but there is a iBasso P3+ amp out there already. The first thing I noticed was that instead of 4 screws at the back, there are now only 2, which makes it 50% easier to access the components! Anyone knows any other difference compared to the P3? Where I first read it from: http://www.stereo.com.sg/store/news_details.php?news_id=23 Edited by bernlim, 1 Sep 2009, 07:31 PM.
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Poison is bad, but its so good Home: iPod Nano 5g-->Ultimatelink Silver-->iBasso P3-->Alessandro MS-1 Computer-->iBasso D3-->UM3x/MS-1 Portable: Zen X-Fi--> Westone UM3x with Shure complys | |
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| wsatia | 1 Sep 2009, 07:57 PM Post #159 |
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now if only stereo had a trade in special to upgrade from P3 to P3+, then i would definitely go for it. way prefer the build quality and provided opamps with the P3+! |
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| chesterqw | 3 Sep 2009, 04:07 PM Post #160 |
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P3+ has BUF634 included |
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| ahdui | 3 Sep 2009, 06:17 PM Post #161 |
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aux!
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Anyway, I wouldn't call P3+ an upgrade but a revision that ibasso made after this modding thread. By simply copying my latest favourite configuration before this thread, you should get something close or identical to the P3+ |
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Transportable: iRiver h120(2300mAh)→Sysconcept Optical Cable→AOS Electornics Co. Piccolo DAC→ahdui's CryoFreeze™ TCu IC→ahdui's Enfo PA-1→Custom Shure SE530 Backup: AMB y-1 DAC (MisterX Mod) Cycling: Sansa Clip 4GB→Philips SHS3200 Earhooks Portable: Rio Karma→UltimateEars Super.Fi 5eb Backup Rig: RedWineAudio 40GB iPod Photo→ahdui's CryoFreeze™ RBT IC→iBasso P3 Heron(ahdui Mod) →Custom Shure SE530 Home: "Upgrading In Progress"→Alessandro MS Pro/JVC HP-DX1000 Desktop: PC→Belden 1505F→CityPulse DAC 7.2x II→Belden 89207→KRK Rokit Powered 5 | |
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| chesterqw | 3 Sep 2009, 09:36 PM Post #162 |
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ahdui, how is your impedance adapter now? |
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| ahdui | 4 Sep 2009, 02:36 PM Post #163 |
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aux!
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I will only have time for building one during this weekend, was busy the whole week for a whole lot of security issues. |
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Transportable: iRiver h120(2300mAh)→Sysconcept Optical Cable→AOS Electornics Co. Piccolo DAC→ahdui's CryoFreeze™ TCu IC→ahdui's Enfo PA-1→Custom Shure SE530 Backup: AMB y-1 DAC (MisterX Mod) Cycling: Sansa Clip 4GB→Philips SHS3200 Earhooks Portable: Rio Karma→UltimateEars Super.Fi 5eb Backup Rig: RedWineAudio 40GB iPod Photo→ahdui's CryoFreeze™ RBT IC→iBasso P3 Heron(ahdui Mod) →Custom Shure SE530 Home: "Upgrading In Progress"→Alessandro MS Pro/JVC HP-DX1000 Desktop: PC→Belden 1505F→CityPulse DAC 7.2x II→Belden 89207→KRK Rokit Powered 5 | |
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| chesterqw | 4 Sep 2009, 02:43 PM Post #164 |
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good luck with whatever you are dealing with  i was wondering if the output buffer is placed after the L/R opamp, possible to put resistor there instead of a buffer and hence get an impedance adapter? got the P3 up and running. i lifted all 3 out of 4 pads for the power caps :x Edited by chesterqw, 6 Sep 2009, 12:42 PM.
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| theory_87 | 11 Sep 2009, 04:11 AM Post #165 |
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I Need More Money To Spend
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3 out of 4?  I think your soldering iron temperature is way too high or you leave it in contact for too long. I had a bad experience with pad lifting when modding a ipod video and a diy amp quite some time ago.  But we learn from mistake yeah 
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Source: Sansa Clip x 2 | iAudio U2 | Rio Karma | iPod Nano 4GB Gen 1 x 2 | iMod 60GB iPod Photo | iPod Gen 5.5 x 2 | iRiver H140 | HP Pavilion dv6121TX Amp: Xin SuperMicro IV | theory_87's DPA1 | iBasso D10 Modded | iBasso fi.Quest | Onkyo TX-SV919THX | Yaqin CD1 Tube Buffer w Mullard E88CC | AMB CK²III Heaphone/IEM/Speaker: CrossRoad MylarOne X3 | SoundMagic PL30 | Modded Altec Lasing im716 | Fischer Audio Eterna w modified UM56 | Custom Ultimate Ears® super.fi 5 Extended Bass™ | Custom Ultimate Ears® #4/1000 triple.fi 10 Pro™ + mid driver| ACS T1 | JBL PS100 & Yamaha VS10M Others: xxx red series 3.5mm & RCA IC | DIY HGA 3.5mm IC | DIY Jena Cryo 3.5mm IC | DIY ALO SXC 3.5mm IC | Custom Optical IC | Ridox contact protector/enhancer | DeoxIT ProGOLD | Mapleshade SilClear | |
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| chesterqw | 11 Sep 2009, 05:17 PM Post #166 |
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wasn't hot enough :x and i forced the capacitor out... |
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| ahdui | 12 Sep 2009, 12:11 AM Post #167 |
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aux!
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 Changed the power capacitors to Panasonic 3300uF 6.3v. They are of the same thickness as the sanyo capacitors but shorter. By-passed the power capacitors with Blackgates Hi-Q NX 0.1uF because I lost my red wimas but later found them in another pouch. The panasonic capacitors as pretty warm but sounds a little raw and laidback as compare to the Fm series which is engaging and warm.  Focus on the capacitors  Take a look at the bottom part. |
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Transportable: iRiver h120(2300mAh)→Sysconcept Optical Cable→AOS Electornics Co. Piccolo DAC→ahdui's CryoFreeze™ TCu IC→ahdui's Enfo PA-1→Custom Shure SE530 Backup: AMB y-1 DAC (MisterX Mod) Cycling: Sansa Clip 4GB→Philips SHS3200 Earhooks Portable: Rio Karma→UltimateEars Super.Fi 5eb Backup Rig: RedWineAudio 40GB iPod Photo→ahdui's CryoFreeze™ RBT IC→iBasso P3 Heron(ahdui Mod) →Custom Shure SE530 Home: "Upgrading In Progress"→Alessandro MS Pro/JVC HP-DX1000 Desktop: PC→Belden 1505F→CityPulse DAC 7.2x II→Belden 89207→KRK Rokit Powered 5 | |
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| theory_87 | 12 Sep 2009, 03:03 AM Post #168 |
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I Need More Money To Spend
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Parallel caps? That is interesting and I used to did that with Xinn Reference too. |
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Source: Sansa Clip x 2 | iAudio U2 | Rio Karma | iPod Nano 4GB Gen 1 x 2 | iMod 60GB iPod Photo | iPod Gen 5.5 x 2 | iRiver H140 | HP Pavilion dv6121TX Amp: Xin SuperMicro IV | theory_87's DPA1 | iBasso D10 Modded | iBasso fi.Quest | Onkyo TX-SV919THX | Yaqin CD1 Tube Buffer w Mullard E88CC | AMB CK²III Heaphone/IEM/Speaker: CrossRoad MylarOne X3 | SoundMagic PL30 | Modded Altec Lasing im716 | Fischer Audio Eterna w modified UM56 | Custom Ultimate Ears® super.fi 5 Extended Bass™ | Custom Ultimate Ears® #4/1000 triple.fi 10 Pro™ + mid driver| ACS T1 | JBL PS100 & Yamaha VS10M Others: xxx red series 3.5mm & RCA IC | DIY HGA 3.5mm IC | DIY Jena Cryo 3.5mm IC | DIY ALO SXC 3.5mm IC | Custom Optical IC | Ridox contact protector/enhancer | DeoxIT ProGOLD | Mapleshade SilClear | |
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| ahdui | 12 Sep 2009, 10:15 AM Post #169 |
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aux!
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It is meant for bypassing the power capacitors to improve on the lows. |
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Transportable: iRiver h120(2300mAh)→Sysconcept Optical Cable→AOS Electornics Co. Piccolo DAC→ahdui's CryoFreeze™ TCu IC→ahdui's Enfo PA-1→Custom Shure SE530 Backup: AMB y-1 DAC (MisterX Mod) Cycling: Sansa Clip 4GB→Philips SHS3200 Earhooks Portable: Rio Karma→UltimateEars Super.Fi 5eb Backup Rig: RedWineAudio 40GB iPod Photo→ahdui's CryoFreeze™ RBT IC→iBasso P3 Heron(ahdui Mod) →Custom Shure SE530 Home: "Upgrading In Progress"→Alessandro MS Pro/JVC HP-DX1000 Desktop: PC→Belden 1505F→CityPulse DAC 7.2x II→Belden 89207→KRK Rokit Powered 5 | |
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| ahdui | 14 Sep 2009, 12:59 AM Post #170 |
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aux!
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Will be playing with Hi-C BUF634s and stacked BUF634s when I have time soon. Pictures and reviews will be out soon. |
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Transportable: iRiver h120(2300mAh)→Sysconcept Optical Cable→AOS Electornics Co. Piccolo DAC→ahdui's CryoFreeze™ TCu IC→ahdui's Enfo PA-1→Custom Shure SE530 Backup: AMB y-1 DAC (MisterX Mod) Cycling: Sansa Clip 4GB→Philips SHS3200 Earhooks Portable: Rio Karma→UltimateEars Super.Fi 5eb Backup Rig: RedWineAudio 40GB iPod Photo→ahdui's CryoFreeze™ RBT IC→iBasso P3 Heron(ahdui Mod) →Custom Shure SE530 Home: "Upgrading In Progress"→Alessandro MS Pro/JVC HP-DX1000 Desktop: PC→Belden 1505F→CityPulse DAC 7.2x II→Belden 89207→KRK Rokit Powered 5 | |
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| ahdui | 29 Sep 2009, 08:12 PM Post #171 |
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aux!
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 My current and favourite combination as of 23/09/09. Upgrades from previous setup: Hi-C Buffers with Vishay Dale Audiophile Grade 0.5% tolerance 221 ohms resistors. (it's overkill, using a normal 1% tolerance resistor is in fact better because it is smaller and easier to solder on but yet with the same effect) The overall improvement is very drastic. Texture, full-bodiedness, soundstage and 3D feel drastically improved. |
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Transportable: iRiver h120(2300mAh)→Sysconcept Optical Cable→AOS Electornics Co. Piccolo DAC→ahdui's CryoFreeze™ TCu IC→ahdui's Enfo PA-1→Custom Shure SE530 Backup: AMB y-1 DAC (MisterX Mod) Cycling: Sansa Clip 4GB→Philips SHS3200 Earhooks Portable: Rio Karma→UltimateEars Super.Fi 5eb Backup Rig: RedWineAudio 40GB iPod Photo→ahdui's CryoFreeze™ RBT IC→iBasso P3 Heron(ahdui Mod) →Custom Shure SE530 Home: "Upgrading In Progress"→Alessandro MS Pro/JVC HP-DX1000 Desktop: PC→Belden 1505F→CityPulse DAC 7.2x II→Belden 89207→KRK Rokit Powered 5 | |
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| HiFlight | 16 Oct 2009, 04:02 AM Post #172 |
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A very nice sounding opamp combination for the P3/P3+ is: OPA1611 (single-channel) or OPA1612 (dual-channel) for LR, AD797BRZ as Buffers, (not ARZ) and bypassed grounds. (single dummy in center ground socket) Ron |
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RON KERLIN Ft Myers, FL SOURCES: Shanling PCD3000A, AMP3, iRiverH140 & (2)H-CF32, Sony S618 & A-820,Panasonic SL-CT800. AMPS: RWA Signature 30.2, SAC K-1000, Little Dot T-150, SOHA (JISBOS), iBasso P3+, D10, Xin SM-Micro. PHONES: AKG K-1000 (2), AKG K-340, Westone ES3X, Sony F1, Sony EX700, FreQshows, Yuin OK2,3, G1A, G1, G2A, Panasonic WF6000T. NON-HEADPHONE AUDIO: Denon Amps, Definitive Technology Surround system, Magnaplan MG12 Speakers. | |
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