Pages: 1
|
|
|
|
Author
|
Topic: QAQ6 12AX7 Tri-tube Preamplifier 4 Ins 2 Outs |
|
QuartzAcoustic
Posts: 107
|
|
QAQ6 12AX7 Tri-tube Preamplifier 4 Ins 2 Outs
« on: November 6th, 2020, 3:17pm »
|
|
Modded and Upgraded Reisong QAQ6 12AX7 Tri-tube Preamplifier 4 Ins 2 Outs with Swappable Capacitors for High Clarity Vocals and Wide Soundstage at $940
See detail write up of preamp here: https://bit.ly/3k2wF5c
Limited sets available in stock now. Usual lead time in restock and modification and upgrade is 12-14 days
OEM Reisong Q6 (advanced set, not the basic set - see below) with marked improvements from modifications and upgrades.
Our QAQ6 is the Reisong factory advance unit which includes 6V6 and 6J1 as part of the current stabilisation setup on the rectifier board.
The unit sold in Aliexpress for over S$590 (with shipping) is the basic set without 6V6 and 6J1 in rectifier board.
After a long period of going through trials and test, the new amplifier, QAQ6, to succeed the previous QA-M7U1 is finally ready.
4 inputs 2 outputs Main coupling capacitors installed with terminals for easy changing of caps to any brands or grades for different level of sound Default installation of coupling caps is the midrange hifi upgrade in ClarityCaps CSA. Midrange is exceptionally smooth and balanced with these highly acclaimed caps Secondary caps upgraded to WIMA MKP10 to improve on the clarity further from the stock caps Filter caps upgraded with vintage NOS Philips caps to complete the audiophile grades of caps used in the output PCB board Comes with either JJ or Electro-Harmonix (EH) 12AX7, probably the best starting brands for 12ax7 for their linearity and balanced sounds Comes with metal tube shields for 12AX7 to slightly reduce RFI Widely available Reisong Q6 is the normally the basic unit where there is only one 6Z4 rectifier tube in the rectifier board QAQ6 is the unit where it is the factory advance set which includes 6V6 and 6J1 as part of the current stabilisation setup Together with the 6Z4/6X4 rectifier tube, the rectifier board in QAQ6 is another tri-tube setup of ensuring the most optimal current is supplied to the 12AX7s Stock units of Reisong Q6 does not get the ability to use 6X4 tube despite the socket being present because the lead of a resistor has to be resoldered QAQ6 has performed the modification and made the option easy for users, where either one of 6Z4 or 6X4 can now be used But 6Z4 in QAQ6 has managed to impress us a lot, that using 6Z4 is in fact perfectly fine As the stock tubes included in the rectifier boards are purely Chinese tubes, both 6Z4 and 6V6 have both been upgraded with the Russian Rockets, Soviet-made Reflektor 6U4n-Eb and 6n6n respectively The Reflektors increased the intensity of the bottom end while pushing the vocals more forward The trusted GE JAN 5654W is used as an affordable upgrade over the stock Chinese 6J1. This tube also provides some sparkle of the midrange The upgrade of these 3 tubes effectively smooths out the brash and harshness of the stock Chinese tubes Large and heavy pots for the input selections and volume control on the front panel
SMS or WhatsApp +65 9423 9296 to enquire or order.
Specifications:
Frequency response: 19Hz-43kHz ± 0.5dB Output voltage: 16.5V (Max) Total Harmonic Distortion: ≤ 0.2% (1kHz 5V) Input sensitivity: 1000 mV Signal to noise ratio: 95dB Input impedance: 100K ohms Output impedance: 1010 ohms (theoretical data after implementation of internal attenuator -21dB)) Tubes: 12AX7 (Either EH or JJ) x 3, Reflektor 6U4n-Eb x 1, Reflektor 6n6c x 1, GE JAN 5654W x 1 Dimension: 420W * 380D * 13.5H mm Net weight: 8.5kg Gross weight: 10.5kg Input Power Voltage: AC100V - AC240V(60Hz/50Hz)
SMS or WhatsApp +65 9423 9296 to enquire or order.
CarouPay acceptable at Carousell page -> https://bit.ly/3l49YyE
|
« Last Edit: November 7th, 2020, 1:24am by QuartzAcoustic » |
Logged |
Looks good, sounds better Quartz Acoustic Pte Ltd (Co Reg No. 201706979E)
|
|
|
Pages: 1
|
|
|
|
the Echo Loft (Buy/Sell Section) (http://www.echoloft.com/cgi-bin/buysell2/YaBB.cgi)
Powered by YaBB 1 Gold - Release (Yet Another Bulletin Board)
Copyright ?2000-2001, X-Null. All Rights Reserved.
|
|