Topic: T-amp recommendations?

[Big Muff]

Hey TS!

I'm in the market for a small amp in the 50w range.
I've got a pair of Premier Acoustic PA-4.2 monitors I'd like to connect with my turntable set-up.
They are 8ohm impedance, 50-175 w, 88db sensitivity, response of 65Hz-20KHz..

I've spotted 2 on ebay that look alright but I cant find much info or reviews..
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330387043763&ssPageName=STRK:MEWAX:IT
http://cgi.ebay.com/TOPPING-TP60-T-Amp-TA2022-Amplifier-80W-2-STERO-AMP-/250733973039?pt=LH_DefaultDomain_0&hash=item3a60e8ce2f

Found a link here for some more..
http://www.parts-express.com/wizards/searchResults.cfm?srchExt=CAT&srchCat=756

Love to hear some input,

thanks!

[gkatz]

it's probably below your wattage range, but I just ordered the topping TP-30 for 90USD. it's 15watts a channel. I can report back about it once I get it. It's the model with USB connectivity.

[Big Muff]

I've got my eye on it.
That and the TP-41 I'm most likely to pull the trigger on.   
They are both the same with two exceptions:
TP-41 is 5w more per channel.
Also has 2 RCA inputs, the 30 has 1 plus USB.
Otherwise, same headphone amps, Op amps etc.

Cheers!

[gkatz]

I've heard better things about Topping's quality control as opposed to Dayton.

[illconditioned]

I've got my eye on it.
That and the TP-41 I'm most likely to pull the trigger on.   
They are both the same with two exceptions:
TP-41 is 5w more per channel.
Also has 2 RCA inputs, the 30 has 1 plus USB.
Otherwise, same headphone amps, Op amps etc.

Cheers!

I know the Dayton DTA-50 uses a cheap opamp solution for the headphone amp.  I was expecting an attenuator on the main output.  That would sound better, I think.  And, yes, I had quality control issues on my Dayton rig.

If anyone finds another source of the 2050 (?) Tripath chip, with or without USB, that would be great.  Also information on the Headphone out and USB CODEC (if present)  would be useful.

  Richard

[Big Muff]

Went with the TP-41.
hopefully will be here in a couple weeks?

Don't know if this helps you Richard, here's some info I found:
The 41 doesn't have USB... it's not for me anyway.

Details

Topping TP41 T-Amp TA2021B Digital Amplifier & Headphone Amp

Feature:

T-Amp:
Tripath TA2021B
Output Power 2 x 25W @ 4ohm, 2 x 14W @ 8ohm
Signal-to-Noise Ratio (SNR) 100dB
Dynamic Range 100dB
IHF-IM Distortion 0.1% @ 1W, 4ohm
THD Distortion
0.05% @ 13W, 4ohm
0.1% @ 15.5W 4ohm
10% @ 25W 4ohm
10% @ 14W 8ohm

Headphone-AMP
Output Power 2 x 60mW @ 16ohm, 2 x 120W @ 32ohm
THD Distortion
0.01% @ 100mW, 32ohm

HIFI Electronic Components:
TOKO digital amplifier Inductance
ALPS Potentiometer
KOA Resistance
nichicon FW Capacitance
ERO Capacitance
EPCOS Capacitance
OMRON Relay
Panasonic Relay

Power input
220V-230V or 100V-110V

Audio input
Audio IN RCA (Left/Right) x 2, Auto or Manual selection

Output
Speaker OUT (Left) x 1 pair (+ / -)
Speaker OUT (Right) x 1 pair (+ / -)
Headphone OUT(6.35mm) x 1

Dimensions
about (W)155mm x (H)60mm x (D)280mm

Net Weight
2.5kg


http://www.houseofdap.com/topping-tp41-t-amp-ta2021b-digital-amplifier-headphone-amp.html

[jbou]

it's probably below your wattage range, but I just ordered the topping TP-30 for 90USD. it's 15watts a channel. I can report back about it once I get it. It's the model with USB connectivity.

I'd love to hear what you think of the TP-30 once you receive it. It seems like it might be a good, affordable way to get a DAC, T amp and headphone amp. I know the reviews say the headphone amp is alright and DAC is decent but it seems like a good place to start since I don't have anything at the moment to run my ATH-50s.

[gkatz]

I just ordered a used pair of HD280's from someone in the yardsale, I am really excited to hear how they sound with the headphone out. and also with my bose interadio SA-200's. THey have 5 inch woofers and are rated 10-75 watts, so I am thinking it should be enough power. I have a decent onkyo receiver with a lot more power anyways that they sound good with. This T amp will get ride of my 25 dollar behringer usb device that makes lots of noise.

I ordered it for 90 dollars, with free shipping, from hifidiyshop.com, based in china. http://www.hifidiyshop.com/topping-tp30-class-t-digital-amplifier-usb-dac-ta2024_p221.html Ordered just over a week ago, expecting 2-3 weeks total, although they say 7-10 days. just seems really far away from maine. I will update once I have received it.

[jbou]

Awesome! I look forward to hearing about it.

[Big Muff]

Got the TP41 today..

they sent me a 220v model...... Any idea if there could be a possibility of running this on DC?
Or should I just mail it back to China?

 

[gkatz]

Got the TP-30 this morning, exactly 2 weeks after ordering. not bad.

Seems great so far! I opened it up, all the parts seemed to be soldered well as far as I can tell. I've only tested them so far with my "interaudio by bose" 10-75 watt speakers. plenty of power for these guys, even with the advertised 10w power at 8 ohm. I first hooked up an i-pod using the aux in, sounded just fine. Than came the USB, it sounds even cleaner and tighter, and it supports kernel streaming in foobar, a great plus!

I'll report on the sound of my in-the-mail HD280 pro's when I get those. Very pleased with this amp so far. It has a nice expensive feel, and a thick machined front plate. the switches feel nice and solid too.

EDIT: got the HD280's today, and with that I think I am getting an idea as to the sound of (more) high quality components. my first impression was the clarity and crispness of the low end. I've only owned sub-50 dollar headphones before these guys, so I guess I was accustomed to muddy sounding bass. The other impression I had was the "cleanness" of the higher frequencies. I guess I am beginning to understand what a "flat response" means.

[jbou]

Glad you're enjoying it. Thanks for updating us.