Audio Horizons TP 2.0 Preamplifier

Wide and shallow image. That's precisely what I heard in my system.

Wide and shallow image. That's precisely what I heard in my system.

I believe this honest discussion of what you are hearing, and what I heard is valuable to everyone. I see no reason to take it off line, unless it makes you uncomfortable.

I do not find my upgraded version softer or recessed. My experience is just the opposite. Voices are more forward and symbals have more impact and decay. The 2.0 is softer sounding in my system to be sure.

The sound is not as round and warm as the original version yet. Like a little more BODY to the voices and hope burn in will do that.

Very interesting set of experiences between all of us thus far.

Bill

Very interesting set of experiences between all of us thus far.

Bill
Grannyring (Reviews | Threads | Answers)

Precisely.

It must be an issue of impedance/gain matching. My amps (VAC Standard 160 monoblocks) have full output at 1.75v and 100kOhms. 32dB input gain. High gain, high impedance amps.

I believe I have these specs correctly.

How about the rest of you?

I will look up the specs for my SS amp tonight. I am also getting a nice triode tube amp Friday and will play with that!

I also think the output or gain of the AH is an issue to look into. The version one owns and the use of XLR or RCA
connections perhaps changes the output or gain. Not sure if impedence changes.

Here are the specs from the AH site.

TP 2.1 TECHNICAL SPECIFICATIONS
Frequency Response: 10 Hz to 50kHz +1/-2 dB
Total Harmonic Distortion (THD): 0.05% @ 1 kHz, -20 dBv, A-weighted
Dynamic Range: Better than 90 dB
Signal to Noise Ratio: Better than 105 dB
Channel Separation: 90 dB @ 1 kHz
70 dB @ 10 kHz
Gain 20 dB or 10dB with B upgrade
Output Impedance: Less than 600 ohms
AC Voltage: 120 Volts
AC Frequency: 50/60 Hz.

I have the upgraded B(balanced?) and N version and use the XLR connectors. The gain is 1/2 or only 10 db instead of 20 db for RCA. I am not a tech guy and perhaps this means nothing but having to turn the knob higher to achieve the same volume.

My B version XLR connections sound better in my system vs the RCA. It is easy for me to compare both as I own both AH RCA and XLR cables.

My AH DAC has two settings for output a low and high gain. I use the lower setting. Not sure if this has any impact?

Love to hear from Victor on this latest subject.

Bill